diff --git a/test/std/algorithms/alg.sorting/alg.binary.search/binary.search/binary_search.pass.cpp b/test/std/algorithms/alg.sorting/alg.binary.search/binary.search/binary_search.pass.cpp
index 253e0e386..1f74a9a1b 100644
--- a/test/std/algorithms/alg.sorting/alg.binary.search/binary.search/binary_search.pass.cpp
+++ b/test/std/algorithms/alg.sorting/alg.binary.search/binary.search/binary_search.pass.cpp
@@ -18,6 +18,7 @@
 #include <algorithm>
 #include <vector>
 #include <cassert>
+#include <cstddef>
 
 #include "test_iterators.h"
 
@@ -36,7 +37,7 @@ test()
     const unsigned M = 10;
     std::vector<int> v(N);
     int x = 0;
-    for (int i = 0; i < v.size(); ++i)
+    for (std::size_t i = 0; i < v.size(); ++i)
     {
         v[i] = x;
         if (++x == M)
diff --git a/test/std/algorithms/alg.sorting/alg.binary.search/binary.search/binary_search_comp.pass.cpp b/test/std/algorithms/alg.sorting/alg.binary.search/binary.search/binary_search_comp.pass.cpp
index 1d2840921..802d89767 100644
--- a/test/std/algorithms/alg.sorting/alg.binary.search/binary.search/binary_search_comp.pass.cpp
+++ b/test/std/algorithms/alg.sorting/alg.binary.search/binary.search/binary_search_comp.pass.cpp
@@ -19,6 +19,7 @@
 #include <vector>
 #include <functional>
 #include <cassert>
+#include <cstddef>
 
 #include "test_iterators.h"
 
@@ -37,7 +38,7 @@ test()
     const unsigned M = 10;
     std::vector<int> v(N);
     int x = 0;
-    for (int i = 0; i < v.size(); ++i)
+    for (std::size_t i = 0; i < v.size(); ++i)
     {
         v[i] = x;
         if (++x == M)
diff --git a/test/std/algorithms/alg.sorting/alg.binary.search/equal.range/equal_range.pass.cpp b/test/std/algorithms/alg.sorting/alg.binary.search/equal.range/equal_range.pass.cpp
index ce659c1b5..8c2b60819 100644
--- a/test/std/algorithms/alg.sorting/alg.binary.search/equal.range/equal_range.pass.cpp
+++ b/test/std/algorithms/alg.sorting/alg.binary.search/equal.range/equal_range.pass.cpp
@@ -18,6 +18,7 @@
 #include <algorithm>
 #include <vector>
 #include <cassert>
+#include <cstddef>
 
 #include "test_iterators.h"
 
@@ -44,7 +45,7 @@ test()
     const unsigned M = 10;
     std::vector<int> v(N);
     int x = 0;
-    for (int i = 0; i < v.size(); ++i)
+    for (std::size_t i = 0; i < v.size(); ++i)
     {
         v[i] = x;
         if (++x == M)
diff --git a/test/std/algorithms/alg.sorting/alg.binary.search/equal.range/equal_range_comp.pass.cpp b/test/std/algorithms/alg.sorting/alg.binary.search/equal.range/equal_range_comp.pass.cpp
index 2b29e2c84..c2d92d920 100644
--- a/test/std/algorithms/alg.sorting/alg.binary.search/equal.range/equal_range_comp.pass.cpp
+++ b/test/std/algorithms/alg.sorting/alg.binary.search/equal.range/equal_range_comp.pass.cpp
@@ -19,6 +19,7 @@
 #include <functional>
 #include <vector>
 #include <cassert>
+#include <cstddef>
 
 #include "test_iterators.h"
 
@@ -45,7 +46,7 @@ test()
     const unsigned M = 10;
     std::vector<int> v(N);
     int x = 0;
-    for (int i = 0; i < v.size(); ++i)
+    for (std::size_t i = 0; i < v.size(); ++i)
     {
         v[i] = x;
         if (++x == M)
diff --git a/test/std/algorithms/alg.sorting/alg.binary.search/lower.bound/lower_bound.pass.cpp b/test/std/algorithms/alg.sorting/alg.binary.search/lower.bound/lower_bound.pass.cpp
index ce4f7ced5..2608104fc 100644
--- a/test/std/algorithms/alg.sorting/alg.binary.search/lower.bound/lower_bound.pass.cpp
+++ b/test/std/algorithms/alg.sorting/alg.binary.search/lower.bound/lower_bound.pass.cpp
@@ -17,6 +17,7 @@
 #include <algorithm>
 #include <vector>
 #include <cassert>
+#include <cstddef>
 
 #include "test_iterators.h"
 
@@ -39,7 +40,7 @@ test()
     const unsigned M = 10;
     std::vector<int> v(N);
     int x = 0;
-    for (int i = 0; i < v.size(); ++i)
+    for (std::size_t i = 0; i < v.size(); ++i)
     {
         v[i] = x;
         if (++x == M)
diff --git a/test/std/algorithms/alg.sorting/alg.binary.search/lower.bound/lower_bound_comp.pass.cpp b/test/std/algorithms/alg.sorting/alg.binary.search/lower.bound/lower_bound_comp.pass.cpp
index ae65c59e3..6a5463246 100644
--- a/test/std/algorithms/alg.sorting/alg.binary.search/lower.bound/lower_bound_comp.pass.cpp
+++ b/test/std/algorithms/alg.sorting/alg.binary.search/lower.bound/lower_bound_comp.pass.cpp
@@ -18,6 +18,7 @@
 #include <functional>
 #include <vector>
 #include <cassert>
+#include <cstddef>
 
 #include "test_iterators.h"
 
@@ -40,7 +41,7 @@ test()
     const unsigned M = 10;
     std::vector<int> v(N);
     int x = 0;
-    for (int i = 0; i < v.size(); ++i)
+    for (std::size_t i = 0; i < v.size(); ++i)
     {
         v[i] = x;
         if (++x == M)
diff --git a/test/std/algorithms/alg.sorting/alg.binary.search/upper.bound/upper_bound.pass.cpp b/test/std/algorithms/alg.sorting/alg.binary.search/upper.bound/upper_bound.pass.cpp
index 3659e08fb..106f1499e 100644
--- a/test/std/algorithms/alg.sorting/alg.binary.search/upper.bound/upper_bound.pass.cpp
+++ b/test/std/algorithms/alg.sorting/alg.binary.search/upper.bound/upper_bound.pass.cpp
@@ -17,6 +17,7 @@
 #include <algorithm>
 #include <vector>
 #include <cassert>
+#include <cstddef>
 
 #include "test_iterators.h"
 
@@ -39,7 +40,7 @@ test()
     const unsigned M = 10;
     std::vector<int> v(N);
     int x = 0;
-    for (int i = 0; i < v.size(); ++i)
+    for (std::size_t i = 0; i < v.size(); ++i)
     {
         v[i] = x;
         if (++x == M)
diff --git a/test/std/algorithms/alg.sorting/alg.binary.search/upper.bound/upper_bound_comp.pass.cpp b/test/std/algorithms/alg.sorting/alg.binary.search/upper.bound/upper_bound_comp.pass.cpp
index dd5fcfc28..3fa346131 100644
--- a/test/std/algorithms/alg.sorting/alg.binary.search/upper.bound/upper_bound_comp.pass.cpp
+++ b/test/std/algorithms/alg.sorting/alg.binary.search/upper.bound/upper_bound_comp.pass.cpp
@@ -18,6 +18,7 @@
 #include <functional>
 #include <vector>
 #include <cassert>
+#include <cstddef>
 
 #include "test_iterators.h"
 
@@ -40,7 +41,7 @@ test()
     const unsigned M = 10;
     std::vector<int> v(N);
     int x = 0;
-    for (int i = 0; i < v.size(); ++i)
+    for (std::size_t i = 0; i < v.size(); ++i)
     {
         v[i] = x;
         if (++x == M)
diff --git a/test/std/containers/container.adaptors/queue/queue.cons.alloc/ctor_container_alloc.pass.cpp b/test/std/containers/container.adaptors/queue/queue.cons.alloc/ctor_container_alloc.pass.cpp
index 16ba1747d..602a8581f 100644
--- a/test/std/containers/container.adaptors/queue/queue.cons.alloc/ctor_container_alloc.pass.cpp
+++ b/test/std/containers/container.adaptors/queue/queue.cons.alloc/ctor_container_alloc.pass.cpp
@@ -14,6 +14,7 @@
 
 #include <queue>
 #include <cassert>
+#include <cstddef>
 
 #include "test_allocator.h"
 
@@ -49,7 +50,7 @@ int main()
     test q(d, test_allocator<int>(4));
     assert(q.get_allocator() == test_allocator<int>(4));
     assert(q.size() == 5);
-    for (int i = 0; i < d.size(); ++i)
+    for (std::size_t i = 0; i < d.size(); ++i)
     {
         assert(q.front() == d[i]);
         q.pop();
diff --git a/test/std/containers/container.adaptors/queue/queue.cons/ctor_container.pass.cpp b/test/std/containers/container.adaptors/queue/queue.cons/ctor_container.pass.cpp
index c4ab955c3..6832a5f8b 100644
--- a/test/std/containers/container.adaptors/queue/queue.cons/ctor_container.pass.cpp
+++ b/test/std/containers/container.adaptors/queue/queue.cons/ctor_container.pass.cpp
@@ -13,6 +13,7 @@
 
 #include <queue>
 #include <cassert>
+#include <cstddef>
 
 template <class C>
 C
@@ -29,7 +30,7 @@ int main()
     std::deque<int> d = make<std::deque<int> >(5);
     std::queue<int> q(d);
     assert(q.size() == 5);
-    for (int i = 0; i < d.size(); ++i)
+    for (std::size_t i = 0; i < d.size(); ++i)
     {
         assert(q.front() == d[i]);
         q.pop();
diff --git a/test/std/containers/container.adaptors/stack/stack.cons.alloc/ctor_container_alloc.pass.cpp b/test/std/containers/container.adaptors/stack/stack.cons.alloc/ctor_container_alloc.pass.cpp
index fe8622751..cc9937a8a 100644
--- a/test/std/containers/container.adaptors/stack/stack.cons.alloc/ctor_container_alloc.pass.cpp
+++ b/test/std/containers/container.adaptors/stack/stack.cons.alloc/ctor_container_alloc.pass.cpp
@@ -14,6 +14,7 @@
 
 #include <stack>
 #include <cassert>
+#include <cstddef>
 
 #include "test_allocator.h"
 
@@ -49,7 +50,7 @@ int main()
     test q(d, test_allocator<int>(4));
     assert(q.get_allocator() == test_allocator<int>(4));
     assert(q.size() == 5);
-    for (int i = 0; i < d.size(); ++i)
+    for (std::size_t i = 0; i < d.size(); ++i)
     {
         assert(q.top() == d[d.size() - i - 1]);
         q.pop();
diff --git a/test/std/containers/container.adaptors/stack/stack.cons/ctor_container.pass.cpp b/test/std/containers/container.adaptors/stack/stack.cons/ctor_container.pass.cpp
index 9dc05013e..7ae12dd70 100644
--- a/test/std/containers/container.adaptors/stack/stack.cons/ctor_container.pass.cpp
+++ b/test/std/containers/container.adaptors/stack/stack.cons/ctor_container.pass.cpp
@@ -13,6 +13,7 @@
 
 #include <stack>
 #include <cassert>
+#include <cstddef>
 
 template <class C>
 C
@@ -29,7 +30,7 @@ int main()
     std::deque<int> d = make<std::deque<int> >(5);
     std::stack<int> q(d);
     assert(q.size() == 5);
-    for (int i = 0; i < d.size(); ++i)
+    for (std::size_t i = 0; i < d.size(); ++i)
     {
         assert(q.top() == d[d.size() - i - 1]);
         q.pop();
diff --git a/test/std/containers/sequences/deque/deque.capacity/resize_size.pass.cpp b/test/std/containers/sequences/deque/deque.capacity/resize_size.pass.cpp
index 53c6bd338..156c27432 100644
--- a/test/std/containers/sequences/deque/deque.capacity/resize_size.pass.cpp
+++ b/test/std/containers/sequences/deque/deque.capacity/resize_size.pass.cpp
@@ -15,6 +15,7 @@
 #include <algorithm>
 #include <iterator>
 #include <cassert>
+#include <cstddef>
 
 #include "test_macros.h"
 #include "min_allocator.h"
@@ -53,7 +54,7 @@ test(C& c1, int size)
     CI i = c1.begin();
     for (int j = 0; j < std::min(c1_osize, c1.size()); ++j, ++i)
         assert(*i == j);
-    for (int j = c1_osize; j < c1.size(); ++j, ++i)
+    for (std::size_t j = c1_osize; j < c1.size(); ++j, ++i)
         assert(*i == 0);
 }
 
diff --git a/test/std/containers/sequences/deque/deque.capacity/resize_size_value.pass.cpp b/test/std/containers/sequences/deque/deque.capacity/resize_size_value.pass.cpp
index 12af64386..82d20057b 100644
--- a/test/std/containers/sequences/deque/deque.capacity/resize_size_value.pass.cpp
+++ b/test/std/containers/sequences/deque/deque.capacity/resize_size_value.pass.cpp
@@ -15,6 +15,7 @@
 #include <algorithm>
 #include <iterator>
 #include <cassert>
+#include <cstddef>
 
 #include "test_macros.h"
 #include "min_allocator.h"
@@ -53,7 +54,7 @@ test(C& c1, int size, int x)
     CI i = c1.begin();
     for (int j = 0; j < std::min(c1_osize, c1.size()); ++j, ++i)
         assert(*i == j);
-    for (int j = c1_osize; j < c1.size(); ++j, ++i)
+    for (std::size_t j = c1_osize; j < c1.size(); ++j, ++i)
         assert(*i == x);
 }
 
diff --git a/test/std/containers/sequences/vector.bool/push_back.pass.cpp b/test/std/containers/sequences/vector.bool/push_back.pass.cpp
index 3897a438b..c482f4945 100644
--- a/test/std/containers/sequences/vector.bool/push_back.pass.cpp
+++ b/test/std/containers/sequences/vector.bool/push_back.pass.cpp
@@ -14,6 +14,7 @@
 
 #include <vector>
 #include <cassert>
+#include <cstddef>
 
 #include "min_allocator.h"
 
@@ -27,7 +28,7 @@ int main()
         {
             c.push_back(a[i]);
             assert(c.size() == i+1);
-            for (int j = 0; j < c.size(); ++j)
+            for (std::size_t j = 0; j < c.size(); ++j)
                 assert(c[j] == a[j]);
         }
     }
@@ -40,7 +41,7 @@ int main()
         {
             c.push_back(a[i]);
             assert(c.size() == i+1);
-            for (int j = 0; j < c.size(); ++j)
+            for (std::size_t j = 0; j < c.size(); ++j)
                 assert(c[j] == a[j]);
         }
     }
diff --git a/test/std/input.output/string.streams/stringstream.cons/move2.pass.cpp b/test/std/input.output/string.streams/stringstream.cons/move2.pass.cpp
index 856cf3cbe..78d682fc4 100644
--- a/test/std/input.output/string.streams/stringstream.cons/move2.pass.cpp
+++ b/test/std/input.output/string.streams/stringstream.cons/move2.pass.cpp
@@ -18,6 +18,7 @@
 #include <vector>
 #include <string>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -27,7 +28,7 @@ int main()
     vecis.back().str("hub started at [00 6b 8b 45 69]");
     vecis.push_back(std::istringstream());
     vecis.back().str("hub started at [00 6b 8b 45 69]");
-    for (int n = 0; n < vecis.size(); n++)
+    for (std::size_t n = 0; n < vecis.size(); n++)
     {
         assert(vecis[n].str().size() == 31);
         vecis[n].seekg(0, std::ios_base::beg);
diff --git a/test/std/numerics/numarray/template.valarray/valarray.assign/copy_assign.pass.cpp b/test/std/numerics/numarray/template.valarray/valarray.assign/copy_assign.pass.cpp
index 2fc42ada8..a65a28209 100644
--- a/test/std/numerics/numarray/template.valarray/valarray.assign/copy_assign.pass.cpp
+++ b/test/std/numerics/numarray/template.valarray/valarray.assign/copy_assign.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -26,7 +27,7 @@ int main()
         std::valarray<T> v2;
         v2 = v;
         assert(v2.size() == v.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == v[i]);
     }
     {
@@ -37,7 +38,7 @@ int main()
         std::valarray<T> v2;
         v2 = v;
         assert(v2.size() == v.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == v[i]);
     }
     {
@@ -51,7 +52,7 @@ int main()
         for (int i = 0; i < N; ++i)
         {
             assert(v2[i].size() == v[i].size());
-            for (int j = 0; j < v[i].size(); ++j)
+            for (std::size_t j = 0; j < v[i].size(); ++j)
                 assert(v2[i][j] == v[i][j]);
         }
     }
diff --git a/test/std/numerics/numarray/template.valarray/valarray.assign/initializer_list_assign.pass.cpp b/test/std/numerics/numarray/template.valarray/valarray.assign/initializer_list_assign.pass.cpp
index 571f56acd..42dc68dab 100644
--- a/test/std/numerics/numarray/template.valarray/valarray.assign/initializer_list_assign.pass.cpp
+++ b/test/std/numerics/numarray/template.valarray/valarray.assign/initializer_list_assign.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -26,7 +27,7 @@ int main()
         std::valarray<T> v2;
         v2 = {1, 2, 3, 4, 5};
         assert(v2.size() == N);
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == a[i]);
     }
     {
@@ -36,7 +37,7 @@ int main()
         std::valarray<T> v2;
         v2 = {1, 2.5, 3, 4.25, 5};
         assert(v2.size() == N);
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == a[i]);
     }
     {
@@ -49,7 +50,7 @@ int main()
         for (int i = 0; i < N; ++i)
         {
             assert(v2[i].size() == a[i].size());
-            for (int j = 0; j < a[i].size(); ++j)
+            for (std::size_t j = 0; j < a[i].size(); ++j)
                 assert(v2[i][j] == a[i][j]);
         }
     }
diff --git a/test/std/numerics/numarray/template.valarray/valarray.assign/move_assign.pass.cpp b/test/std/numerics/numarray/template.valarray/valarray.assign/move_assign.pass.cpp
index d4f750652..9ed4849fa 100644
--- a/test/std/numerics/numarray/template.valarray/valarray.assign/move_assign.pass.cpp
+++ b/test/std/numerics/numarray/template.valarray/valarray.assign/move_assign.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -28,7 +29,7 @@ int main()
         v2 = std::move(v);
         assert(v2.size() == N);
         assert(v.size() == 0);
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == a[i]);
     }
     {
@@ -40,7 +41,7 @@ int main()
         v2 = std::move(v);
         assert(v2.size() == N);
         assert(v.size() == 0);
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == a[i]);
     }
     {
@@ -55,7 +56,7 @@ int main()
         for (int i = 0; i < N; ++i)
         {
             assert(v2[i].size() == a[i].size());
-            for (int j = 0; j < a[i].size(); ++j)
+            for (std::size_t j = 0; j < a[i].size(); ++j)
                 assert(v2[i][j] == a[i][j]);
         }
     }
diff --git a/test/std/numerics/numarray/template.valarray/valarray.assign/value_assign.pass.cpp b/test/std/numerics/numarray/template.valarray/valarray.assign/value_assign.pass.cpp
index b9d67f86a..cf1d34a11 100644
--- a/test/std/numerics/numarray/template.valarray/valarray.assign/value_assign.pass.cpp
+++ b/test/std/numerics/numarray/template.valarray/valarray.assign/value_assign.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -25,7 +26,7 @@ int main()
         std::valarray<T> v(a, N);
         v = 7;
         assert(v.size() == N);
-        for (int i = 0; i < v.size(); ++i)
+        for (std::size_t i = 0; i < v.size(); ++i)
             assert(v[i] == 7);
     }
 }
diff --git a/test/std/numerics/numarray/template.valarray/valarray.cassign/and_valarray.pass.cpp b/test/std/numerics/numarray/template.valarray/valarray.cassign/and_valarray.pass.cpp
index 5b1c1b991..9ceae5f2d 100644
--- a/test/std/numerics/numarray/template.valarray/valarray.cassign/and_valarray.pass.cpp
+++ b/test/std/numerics/numarray/template.valarray/valarray.cassign/and_valarray.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -30,7 +31,7 @@ int main()
         v1 &= v2;
         assert(v1.size() == v2.size());
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v1[i] == v3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/template.valarray/valarray.cassign/and_value.pass.cpp b/test/std/numerics/numarray/template.valarray/valarray.cassign/and_value.pass.cpp
index 2106a13e2..2d74a3337 100644
--- a/test/std/numerics/numarray/template.valarray/valarray.cassign/and_value.pass.cpp
+++ b/test/std/numerics/numarray/template.valarray/valarray.cassign/and_value.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -27,7 +28,7 @@ int main()
         std::valarray<T> v2(a2, N);
         v1 &= 3;
         assert(v1.size() == v2.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v1[i] == v2[i]);
     }
 }
diff --git a/test/std/numerics/numarray/template.valarray/valarray.cassign/divide_valarray.pass.cpp b/test/std/numerics/numarray/template.valarray/valarray.cassign/divide_valarray.pass.cpp
index 3992d0aa4..914e632d5 100644
--- a/test/std/numerics/numarray/template.valarray/valarray.cassign/divide_valarray.pass.cpp
+++ b/test/std/numerics/numarray/template.valarray/valarray.cassign/divide_valarray.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -30,7 +31,7 @@ int main()
         v3 /= v2;
         assert(v1.size() == v2.size());
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v1[i] == v3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/template.valarray/valarray.cassign/divide_value.pass.cpp b/test/std/numerics/numarray/template.valarray/valarray.cassign/divide_value.pass.cpp
index 7bd1cc84d..58ea7f18b 100644
--- a/test/std/numerics/numarray/template.valarray/valarray.cassign/divide_value.pass.cpp
+++ b/test/std/numerics/numarray/template.valarray/valarray.cassign/divide_value.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -27,7 +28,7 @@ int main()
         std::valarray<T> v2(a2, N);
         v2 /= 6;
         assert(v1.size() == v2.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v1[i] == v2[i]);
     }
 }
diff --git a/test/std/numerics/numarray/template.valarray/valarray.cassign/minus_valarray.pass.cpp b/test/std/numerics/numarray/template.valarray/valarray.cassign/minus_valarray.pass.cpp
index e3d308aba..2cc2cce56 100644
--- a/test/std/numerics/numarray/template.valarray/valarray.cassign/minus_valarray.pass.cpp
+++ b/test/std/numerics/numarray/template.valarray/valarray.cassign/minus_valarray.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -30,7 +31,7 @@ int main()
         v3 -= v2;
         assert(v1.size() == v2.size());
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v1[i] == v3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/template.valarray/valarray.cassign/minus_value.pass.cpp b/test/std/numerics/numarray/template.valarray/valarray.cassign/minus_value.pass.cpp
index 27ea8c2c0..49d7c7f5b 100644
--- a/test/std/numerics/numarray/template.valarray/valarray.cassign/minus_value.pass.cpp
+++ b/test/std/numerics/numarray/template.valarray/valarray.cassign/minus_value.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -27,7 +28,7 @@ int main()
         std::valarray<T> v2(a2, N);
         v1 -= 3;
         assert(v1.size() == v2.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v1[i] == v2[i]);
     }
 }
diff --git a/test/std/numerics/numarray/template.valarray/valarray.cassign/modulo_valarray.pass.cpp b/test/std/numerics/numarray/template.valarray/valarray.cassign/modulo_valarray.pass.cpp
index 1754a5575..3bbff9943 100644
--- a/test/std/numerics/numarray/template.valarray/valarray.cassign/modulo_valarray.pass.cpp
+++ b/test/std/numerics/numarray/template.valarray/valarray.cassign/modulo_valarray.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -30,7 +31,7 @@ int main()
         v2 %= v1;
         assert(v1.size() == v2.size());
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v2[i] == v3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/template.valarray/valarray.cassign/modulo_value.pass.cpp b/test/std/numerics/numarray/template.valarray/valarray.cassign/modulo_value.pass.cpp
index 794a0b629..d372d88a4 100644
--- a/test/std/numerics/numarray/template.valarray/valarray.cassign/modulo_value.pass.cpp
+++ b/test/std/numerics/numarray/template.valarray/valarray.cassign/modulo_value.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -27,7 +28,7 @@ int main()
         std::valarray<T> v2(a2, N);
         v1 %= 3;
         assert(v1.size() == v2.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v1[i] == v2[i]);
     }
 }
diff --git a/test/std/numerics/numarray/template.valarray/valarray.cassign/or_valarray.pass.cpp b/test/std/numerics/numarray/template.valarray/valarray.cassign/or_valarray.pass.cpp
index 0d70b4e71..4a1be1916 100644
--- a/test/std/numerics/numarray/template.valarray/valarray.cassign/or_valarray.pass.cpp
+++ b/test/std/numerics/numarray/template.valarray/valarray.cassign/or_valarray.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -30,7 +31,7 @@ int main()
         v1 |= v2;
         assert(v1.size() == v2.size());
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v1[i] == v3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/template.valarray/valarray.cassign/or_value.pass.cpp b/test/std/numerics/numarray/template.valarray/valarray.cassign/or_value.pass.cpp
index 4030907ff..bab99bca0 100644
--- a/test/std/numerics/numarray/template.valarray/valarray.cassign/or_value.pass.cpp
+++ b/test/std/numerics/numarray/template.valarray/valarray.cassign/or_value.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -27,7 +28,7 @@ int main()
         std::valarray<T> v2(a2, N);
         v1 |= 3;
         assert(v1.size() == v2.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v1[i] == v2[i]);
     }
 }
diff --git a/test/std/numerics/numarray/template.valarray/valarray.cassign/plus_valarray.pass.cpp b/test/std/numerics/numarray/template.valarray/valarray.cassign/plus_valarray.pass.cpp
index fdf999c2a..5f6047f65 100644
--- a/test/std/numerics/numarray/template.valarray/valarray.cassign/plus_valarray.pass.cpp
+++ b/test/std/numerics/numarray/template.valarray/valarray.cassign/plus_valarray.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -30,7 +31,7 @@ int main()
         v1 += v2;
         assert(v1.size() == v2.size());
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v1[i] == v3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/template.valarray/valarray.cassign/plus_value.pass.cpp b/test/std/numerics/numarray/template.valarray/valarray.cassign/plus_value.pass.cpp
index 23d6d9d05..0b5e88eda 100644
--- a/test/std/numerics/numarray/template.valarray/valarray.cassign/plus_value.pass.cpp
+++ b/test/std/numerics/numarray/template.valarray/valarray.cassign/plus_value.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -27,7 +28,7 @@ int main()
         std::valarray<T> v2(a2, N);
         v1 += 3;
         assert(v1.size() == v2.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v1[i] == v2[i]);
     }
 }
diff --git a/test/std/numerics/numarray/template.valarray/valarray.cassign/shift_left_valarray.pass.cpp b/test/std/numerics/numarray/template.valarray/valarray.cassign/shift_left_valarray.pass.cpp
index ad44e3887..962648118 100644
--- a/test/std/numerics/numarray/template.valarray/valarray.cassign/shift_left_valarray.pass.cpp
+++ b/test/std/numerics/numarray/template.valarray/valarray.cassign/shift_left_valarray.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -30,7 +31,7 @@ int main()
         v1 <<= v2;
         assert(v1.size() == v2.size());
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v1[i] == v3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/template.valarray/valarray.cassign/shift_left_value.pass.cpp b/test/std/numerics/numarray/template.valarray/valarray.cassign/shift_left_value.pass.cpp
index 366407a95..05fa3b94c 100644
--- a/test/std/numerics/numarray/template.valarray/valarray.cassign/shift_left_value.pass.cpp
+++ b/test/std/numerics/numarray/template.valarray/valarray.cassign/shift_left_value.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -27,7 +28,7 @@ int main()
         std::valarray<T> v2(a2, N);
         v1 <<= 3;
         assert(v1.size() == v2.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v1[i] == v2[i]);
     }
 }
diff --git a/test/std/numerics/numarray/template.valarray/valarray.cassign/shift_right_valarray.pass.cpp b/test/std/numerics/numarray/template.valarray/valarray.cassign/shift_right_valarray.pass.cpp
index f7df16b84..7161d27e6 100644
--- a/test/std/numerics/numarray/template.valarray/valarray.cassign/shift_right_valarray.pass.cpp
+++ b/test/std/numerics/numarray/template.valarray/valarray.cassign/shift_right_valarray.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -30,7 +31,7 @@ int main()
         v3 >>= v2;
         assert(v1.size() == v2.size());
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v1[i] == v3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/template.valarray/valarray.cassign/shift_right_value.pass.cpp b/test/std/numerics/numarray/template.valarray/valarray.cassign/shift_right_value.pass.cpp
index 7c568b14c..726ac9b8f 100644
--- a/test/std/numerics/numarray/template.valarray/valarray.cassign/shift_right_value.pass.cpp
+++ b/test/std/numerics/numarray/template.valarray/valarray.cassign/shift_right_value.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -27,7 +28,7 @@ int main()
         std::valarray<T> v2(a2, N);
         v2 >>= 3;
         assert(v1.size() == v2.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v1[i] == v2[i]);
     }
 }
diff --git a/test/std/numerics/numarray/template.valarray/valarray.cassign/times_valarray.pass.cpp b/test/std/numerics/numarray/template.valarray/valarray.cassign/times_valarray.pass.cpp
index d3cf1eb88..02c0cc59e 100644
--- a/test/std/numerics/numarray/template.valarray/valarray.cassign/times_valarray.pass.cpp
+++ b/test/std/numerics/numarray/template.valarray/valarray.cassign/times_valarray.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -30,7 +31,7 @@ int main()
         v1 *= v2;
         assert(v1.size() == v2.size());
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v1[i] == v3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/template.valarray/valarray.cassign/times_value.pass.cpp b/test/std/numerics/numarray/template.valarray/valarray.cassign/times_value.pass.cpp
index aea9806bc..1740e449d 100644
--- a/test/std/numerics/numarray/template.valarray/valarray.cassign/times_value.pass.cpp
+++ b/test/std/numerics/numarray/template.valarray/valarray.cassign/times_value.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -27,7 +28,7 @@ int main()
         std::valarray<T> v2(a2, N);
         v1 *= 6;
         assert(v1.size() == v2.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v1[i] == v2[i]);
     }
 }
diff --git a/test/std/numerics/numarray/template.valarray/valarray.cassign/xor_valarray.pass.cpp b/test/std/numerics/numarray/template.valarray/valarray.cassign/xor_valarray.pass.cpp
index a10bd7e0a..452b581e0 100644
--- a/test/std/numerics/numarray/template.valarray/valarray.cassign/xor_valarray.pass.cpp
+++ b/test/std/numerics/numarray/template.valarray/valarray.cassign/xor_valarray.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -30,7 +31,7 @@ int main()
         v1 ^= v2;
         assert(v1.size() == v2.size());
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v1[i] == v3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/template.valarray/valarray.cassign/xor_value.pass.cpp b/test/std/numerics/numarray/template.valarray/valarray.cassign/xor_value.pass.cpp
index 327952f7b..6951653b4 100644
--- a/test/std/numerics/numarray/template.valarray/valarray.cassign/xor_value.pass.cpp
+++ b/test/std/numerics/numarray/template.valarray/valarray.cassign/xor_value.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -27,7 +28,7 @@ int main()
         std::valarray<T> v2(a2, N);
         v1 ^= 3;
         assert(v1.size() == v2.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v1[i] == v2[i]);
     }
 }
diff --git a/test/std/numerics/numarray/template.valarray/valarray.cons/copy.pass.cpp b/test/std/numerics/numarray/template.valarray/valarray.cons/copy.pass.cpp
index 04ac2cdf1..d0417333a 100644
--- a/test/std/numerics/numarray/template.valarray/valarray.cons/copy.pass.cpp
+++ b/test/std/numerics/numarray/template.valarray/valarray.cons/copy.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -25,7 +26,7 @@ int main()
         std::valarray<T> v(a, N);
         std::valarray<T> v2 = v;
         assert(v2.size() == v.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == v[i]);
     }
     {
@@ -35,7 +36,7 @@ int main()
         std::valarray<T> v(a, N);
         std::valarray<T> v2 = v;
         assert(v2.size() == v.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == v[i]);
     }
     {
@@ -48,7 +49,7 @@ int main()
         for (int i = 0; i < N; ++i)
         {
             assert(v2[i].size() == v[i].size());
-            for (int j = 0; j < v[i].size(); ++j)
+            for (std::size_t j = 0; j < v[i].size(); ++j)
                 assert(v2[i][j] == v[i][j]);
         }
     }
diff --git a/test/std/numerics/numarray/template.valarray/valarray.cons/move.pass.cpp b/test/std/numerics/numarray/template.valarray/valarray.cons/move.pass.cpp
index 6ac8773fa..81eb7e40d 100644
--- a/test/std/numerics/numarray/template.valarray/valarray.cons/move.pass.cpp
+++ b/test/std/numerics/numarray/template.valarray/valarray.cons/move.pass.cpp
@@ -16,6 +16,7 @@
 #include <valarray>
 #include <utility>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -28,7 +29,7 @@ int main()
         std::valarray<T> v2 = std::move(v);
         assert(v2.size() == N);
         assert(v.size() == 0);
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == a[i]);
     }
     {
@@ -39,7 +40,7 @@ int main()
         std::valarray<T> v2 = std::move(v);
         assert(v2.size() == N);
         assert(v.size() == 0);
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == a[i]);
     }
     {
@@ -53,7 +54,7 @@ int main()
         for (int i = 0; i < N; ++i)
         {
             assert(v2[i].size() == a[i].size());
-            for (int j = 0; j < v2[i].size(); ++j)
+            for (std::size_t j = 0; j < v2[i].size(); ++j)
                 assert(v2[i][j] == a[i][j]);
         }
     }
diff --git a/test/std/numerics/numarray/template.valarray/valarray.cons/pointer_size.pass.cpp b/test/std/numerics/numarray/template.valarray/valarray.cons/pointer_size.pass.cpp
index 3d3649ee4..73f29a136 100644
--- a/test/std/numerics/numarray/template.valarray/valarray.cons/pointer_size.pass.cpp
+++ b/test/std/numerics/numarray/template.valarray/valarray.cons/pointer_size.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -45,7 +46,7 @@ int main()
         for (int i = 0; i < N; ++i)
         {
             assert(v[i].size() == a[i].size());
-            for (int j = 0; j < v[i].size(); ++j)
+            for (std::size_t j = 0; j < v[i].size(); ++j)
                 assert(v[i][j] == a[i][j]);
         }
     }
diff --git a/test/std/numerics/numarray/template.valarray/valarray.members/resize.pass.cpp b/test/std/numerics/numarray/template.valarray/valarray.members/resize.pass.cpp
index 176d958aa..9a527c250 100644
--- a/test/std/numerics/numarray/template.valarray/valarray.members/resize.pass.cpp
+++ b/test/std/numerics/numarray/template.valarray/valarray.members/resize.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -25,17 +26,17 @@ int main()
         std::valarray<T> v1(a1, N1);
         v1.resize(8);
         assert(v1.size() == 8);
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v1[i] == 0);
         v1.resize(0);
         assert(v1.size() == 0);
         v1.resize(80);
         assert(v1.size() == 80);
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v1[i] == 0);
         v1.resize(40);
         assert(v1.size() == 40);
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v1[i] == 0);
     }
 }
diff --git a/test/std/numerics/numarray/template.valarray/valarray.members/swap.pass.cpp b/test/std/numerics/numarray/template.valarray/valarray.members/swap.pass.cpp
index a90a80936..2fcdc9730 100644
--- a/test/std/numerics/numarray/template.valarray/valarray.members/swap.pass.cpp
+++ b/test/std/numerics/numarray/template.valarray/valarray.members/swap.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -30,10 +31,10 @@ int main()
         std::valarray<T> v2_save = v2;
         v1.swap(v2);
         assert(v1.size() == v2_save.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v1[i] == v2_save[i]);
         assert(v2.size() == v1_save.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == v1_save[i]);
     }
     {
@@ -47,10 +48,10 @@ int main()
         std::valarray<T> v2_save = v2;
         v1.swap(v2);
         assert(v1.size() == v2_save.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v1[i] == v2_save[i]);
         assert(v2.size() == v1_save.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == v1_save[i]);
     }
     {
@@ -64,10 +65,10 @@ int main()
         std::valarray<T> v2_save = v2;
         v1.swap(v2);
         assert(v1.size() == v2_save.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v1[i] == v2_save[i]);
         assert(v2.size() == v1_save.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == v1_save[i]);
     }
     {
@@ -80,10 +81,10 @@ int main()
         std::valarray<T> v2_save = v2;
         v1.swap(v2);
         assert(v1.size() == v2_save.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v1[i] == v2_save[i]);
         assert(v2.size() == v1_save.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == v1_save[i]);
     }
 }
diff --git a/test/std/numerics/numarray/template.valarray/valarray.unary/bit_not.pass.cpp b/test/std/numerics/numarray/template.valarray/valarray.unary/bit_not.pass.cpp
index c1d240cb6..272ec4f70 100644
--- a/test/std/numerics/numarray/template.valarray/valarray.unary/bit_not.pass.cpp
+++ b/test/std/numerics/numarray/template.valarray/valarray.unary/bit_not.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -25,7 +26,7 @@ int main()
         std::valarray<T> v(a, N);
         std::valarray<T> v2 = ~v;
         assert(v2.size() == v.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == ~v[i]);
     }
     {
@@ -38,7 +39,7 @@ int main()
         for (int i = 0; i < N; ++i)
         {
             assert(v2[i].size() == v[i].size());
-            for (int j = 0; j < v[i].size(); ++j)
+            for (std::size_t j = 0; j < v[i].size(); ++j)
                 assert(v2[i][j] == ~v[i][j]);
         }
     }
@@ -49,7 +50,7 @@ int main()
         std::valarray<T> v(a, N);
         std::valarray<T> v2 = ~(v + v);
         assert(v2.size() == v.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == ~(2*v[i]));
     }
 }
diff --git a/test/std/numerics/numarray/template.valarray/valarray.unary/negate.pass.cpp b/test/std/numerics/numarray/template.valarray/valarray.unary/negate.pass.cpp
index 25674bb44..6cbccd08f 100644
--- a/test/std/numerics/numarray/template.valarray/valarray.unary/negate.pass.cpp
+++ b/test/std/numerics/numarray/template.valarray/valarray.unary/negate.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -25,7 +26,7 @@ int main()
         std::valarray<T> v(a, N);
         std::valarray<T> v2 = -v;
         assert(v2.size() == v.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == -v[i]);
     }
     {
@@ -35,7 +36,7 @@ int main()
         std::valarray<T> v(a, N);
         std::valarray<T> v2 = -v;
         assert(v2.size() == v.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == -v[i]);
     }
     {
@@ -48,7 +49,7 @@ int main()
         for (int i = 0; i < N; ++i)
         {
             assert(v2[i].size() == v[i].size());
-            for (int j = 0; j < v[i].size(); ++j)
+            for (std::size_t j = 0; j < v[i].size(); ++j)
                 assert(v2[i][j] == -v[i][j]);
         }
     }
@@ -59,7 +60,7 @@ int main()
         std::valarray<T> v(a, N);
         std::valarray<T> v2 = -(v + v);
         assert(v2.size() == v.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == -2*v[i]);
     }
 }
diff --git a/test/std/numerics/numarray/template.valarray/valarray.unary/not.pass.cpp b/test/std/numerics/numarray/template.valarray/valarray.unary/not.pass.cpp
index 306ea0c18..844b3d210 100644
--- a/test/std/numerics/numarray/template.valarray/valarray.unary/not.pass.cpp
+++ b/test/std/numerics/numarray/template.valarray/valarray.unary/not.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -25,7 +26,7 @@ int main()
         std::valarray<T> v(a, N);
         std::valarray<bool> v2 = !v;
         assert(v2.size() == v.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == !v[i]);
     }
     {
@@ -35,7 +36,7 @@ int main()
         std::valarray<T> v(a, N);
         std::valarray<bool> v2 = !(v + v);
         assert(v2.size() == v.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == !(2 * v[i]));
     }
 }
diff --git a/test/std/numerics/numarray/template.valarray/valarray.unary/plus.pass.cpp b/test/std/numerics/numarray/template.valarray/valarray.unary/plus.pass.cpp
index 4bcdaf095..df6fccc38 100644
--- a/test/std/numerics/numarray/template.valarray/valarray.unary/plus.pass.cpp
+++ b/test/std/numerics/numarray/template.valarray/valarray.unary/plus.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -25,7 +26,7 @@ int main()
         std::valarray<T> v(a, N);
         std::valarray<T> v2 = +v;
         assert(v2.size() == v.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == +v[i]);
     }
     {
@@ -35,7 +36,7 @@ int main()
         std::valarray<T> v(a, N);
         std::valarray<T> v2 = +v;
         assert(v2.size() == v.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == +v[i]);
     }
     {
@@ -48,7 +49,7 @@ int main()
         for (int i = 0; i < N; ++i)
         {
             assert(v2[i].size() == v[i].size());
-            for (int j = 0; j < v[i].size(); ++j)
+            for (std::size_t j = 0; j < v[i].size(); ++j)
                 assert(v2[i][j] == +v[i][j]);
         }
     }
@@ -59,7 +60,7 @@ int main()
         std::valarray<T> v(a, N);
         std::valarray<T> v2 = +(v + v);
         assert(v2.size() == v.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == +2*v[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/and_valarray_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/and_valarray_valarray.pass.cpp
index 9214e61fb..724b86841 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/and_valarray_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/and_valarray_valarray.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -29,7 +30,7 @@ int main()
         std::valarray<T> v3 = v1 & v2;
         assert(v1.size() == v2.size());
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v3[i] == a3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/and_valarray_value.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/and_valarray_value.pass.cpp
index 0976a88dc..360ffe5eb 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/and_valarray_value.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/and_valarray_value.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -26,7 +27,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v2 = v1 & 3;
         assert(v1.size() == v2.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == a2[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/and_value_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/and_value_valarray.pass.cpp
index e3dd180b2..7de81179d 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/and_value_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/and_value_valarray.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -26,7 +27,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v2 = 3 & v1;
         assert(v1.size() == v2.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == a2[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/divide_valarray_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/divide_valarray_valarray.pass.cpp
index ff250afd2..cb02459cd 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/divide_valarray_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/divide_valarray_valarray.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -29,7 +30,7 @@ int main()
         std::valarray<T> v3 = v1 / v2;
         assert(v1.size() == v2.size());
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v3[i] == a3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/divide_valarray_value.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/divide_valarray_value.pass.cpp
index ffbebab1e..0b692aa35 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/divide_valarray_value.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/divide_valarray_value.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -26,7 +27,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v2 = v1 / 6;
         assert(v1.size() == v2.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == a2[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/divide_value_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/divide_value_valarray.pass.cpp
index 1a7f2f07c..c6c339b2a 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/divide_value_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/divide_value_valarray.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -26,7 +27,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v2 = 3 / v1;
         assert(v1.size() == v2.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == a2[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/minus_valarray_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/minus_valarray_valarray.pass.cpp
index 1f0354e8a..ddea683ce 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/minus_valarray_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/minus_valarray_valarray.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -29,7 +30,7 @@ int main()
         std::valarray<T> v3 = v1 - v2;
         assert(v1.size() == v2.size());
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v3[i] == a3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/minus_valarray_value.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/minus_valarray_value.pass.cpp
index 382cab8ea..b5fc58a9f 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/minus_valarray_value.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/minus_valarray_value.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -26,7 +27,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v2 = v1 - 3;
         assert(v1.size() == v2.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == a2[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/minus_value_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/minus_value_valarray.pass.cpp
index 7f00aba84..1780eda20 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/minus_value_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/minus_value_valarray.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -26,7 +27,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v2 = 3 - v1;
         assert(v1.size() == v2.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == a2[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/modulo_valarray_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/modulo_valarray_valarray.pass.cpp
index 0a9cf3884..58b78a322 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/modulo_valarray_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/modulo_valarray_valarray.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -29,7 +30,7 @@ int main()
         std::valarray<T> v3 = v1 % v2;
         assert(v1.size() == v2.size());
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v3[i] == a3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/modulo_valarray_value.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/modulo_valarray_value.pass.cpp
index 12c4c2453..083fdabd8 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/modulo_valarray_value.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/modulo_valarray_value.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -26,7 +27,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v2 = v1 % 3;
         assert(v1.size() == v2.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == a2[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/modulo_value_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/modulo_value_valarray.pass.cpp
index 1d7388721..55801ca69 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/modulo_value_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/modulo_value_valarray.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -26,7 +27,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v2 = 3 % v1;
         assert(v1.size() == v2.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == a2[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/or_valarray_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/or_valarray_valarray.pass.cpp
index a23ea4f58..adea116c9 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/or_valarray_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/or_valarray_valarray.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -29,7 +30,7 @@ int main()
         std::valarray<T> v3 = v1 | v2;
         assert(v1.size() == v2.size());
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v3[i] == a3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/or_valarray_value.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/or_valarray_value.pass.cpp
index f617c27ae..3f526b8f6 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/or_valarray_value.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/or_valarray_value.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -26,7 +27,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v2 = v1 | 3;
         assert(v1.size() == v2.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == a2[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/or_value_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/or_value_valarray.pass.cpp
index 8903f438a..246a48532 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/or_value_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/or_value_valarray.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -26,7 +27,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v2 = 3 | v1;
         assert(v1.size() == v2.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == a2[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/plus_valarray_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/plus_valarray_valarray.pass.cpp
index 1167772af..82ebebaa7 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/plus_valarray_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/plus_valarray_valarray.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -29,7 +30,7 @@ int main()
         std::valarray<T> v3 = v1 + v2;
         assert(v1.size() == v2.size());
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v3[i] == a3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/plus_valarray_value.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/plus_valarray_value.pass.cpp
index b1b4e6931..68c752821 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/plus_valarray_value.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/plus_valarray_value.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -26,7 +27,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v2 = v1 + 3;
         assert(v1.size() == v2.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == a2[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/plus_value_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/plus_value_valarray.pass.cpp
index df2285348..723ec62d8 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/plus_value_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/plus_value_valarray.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -26,7 +27,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v2 = 3 + v1;
         assert(v1.size() == v2.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == a2[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/shift_left_valarray_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/shift_left_valarray_valarray.pass.cpp
index 42a7c419a..31d50eeb8 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/shift_left_valarray_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/shift_left_valarray_valarray.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -29,7 +30,7 @@ int main()
         std::valarray<T> v3 = v1 << v2;
         assert(v1.size() == v2.size());
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v3[i] == a3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/shift_left_valarray_value.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/shift_left_valarray_value.pass.cpp
index 753ba38f3..646b55ed3 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/shift_left_valarray_value.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/shift_left_valarray_value.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -26,7 +27,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v2 = v1 << 3;
         assert(v1.size() == v2.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == a2[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/shift_left_value_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/shift_left_value_valarray.pass.cpp
index 640ce1a47..5ddce6fd4 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/shift_left_value_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/shift_left_value_valarray.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -26,7 +27,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v2 = 3 << v1;
         assert(v1.size() == v2.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == a2[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/shift_right_valarray_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/shift_right_valarray_valarray.pass.cpp
index 8e6358d62..b6c4c1150 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/shift_right_valarray_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/shift_right_valarray_valarray.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -29,7 +30,7 @@ int main()
         std::valarray<T> v3 = v1 >> v2;
         assert(v1.size() == v2.size());
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v3[i] == a3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/shift_right_valarray_value.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/shift_right_valarray_value.pass.cpp
index 0c0ba5446..abc7726de 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/shift_right_valarray_value.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/shift_right_valarray_value.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -26,7 +27,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v2 = v1 >> 3;
         assert(v1.size() == v2.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == a2[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/shift_right_value_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/shift_right_value_valarray.pass.cpp
index ad5418af0..956ec055c 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/shift_right_value_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/shift_right_value_valarray.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -26,7 +27,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v2 = 40 >> v1;
         assert(v1.size() == v2.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == a2[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/times_valarray_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/times_valarray_valarray.pass.cpp
index 69a3bffc3..23cbdbe92 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/times_valarray_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/times_valarray_valarray.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -29,7 +30,7 @@ int main()
         std::valarray<T> v3 = v1 * v2;
         assert(v1.size() == v2.size());
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v3[i] == a3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/times_valarray_value.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/times_valarray_value.pass.cpp
index c4fb410de..cf87f0094 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/times_valarray_value.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/times_valarray_value.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -26,7 +27,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v2 = v1 * 6;
         assert(v1.size() == v2.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == a2[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/times_value_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/times_value_valarray.pass.cpp
index f5d877783..23b078e2d 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/times_value_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/times_value_valarray.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -26,7 +27,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v2 = 6 * v1;
         assert(v1.size() == v2.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == a2[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/xor_valarray_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/xor_valarray_valarray.pass.cpp
index 71b505b0c..e550d0c7f 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/xor_valarray_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/xor_valarray_valarray.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -29,7 +30,7 @@ int main()
         std::valarray<T> v3 = v1 ^ v2;
         assert(v1.size() == v2.size());
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v3[i] == a3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/xor_valarray_value.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/xor_valarray_value.pass.cpp
index 8dbe6843c..d7d5aa497 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/xor_valarray_value.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/xor_valarray_value.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -26,7 +27,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v2 = v1 ^ 3;
         assert(v1.size() == v2.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == a2[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/xor_value_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/xor_value_valarray.pass.cpp
index face0635d..3e83ff9ae 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/xor_value_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.binary/xor_value_valarray.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -26,7 +27,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v2 = 3 ^ v1;
         assert(v1.size() == v2.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == a2[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/and_valarray_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/and_valarray_valarray.pass.cpp
index af2a1b3ed..003ed3d2c 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/and_valarray_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/and_valarray_valarray.pass.cpp
@@ -17,6 +17,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -31,7 +32,7 @@ int main()
         std::valarray<bool> v3 = v1 && v2;
         assert(v1.size() == v2.size());
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v3[i] == a3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/and_valarray_value.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/and_valarray_value.pass.cpp
index f34fe9642..59f2999a2 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/and_valarray_value.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/and_valarray_value.pass.cpp
@@ -17,6 +17,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -28,7 +29,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<bool> v3 = v1 && 5;
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v3[i] == a3[i]);
     }
     {
@@ -39,7 +40,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<bool> v3 = v1 && 0;
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v3[i] == a3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/and_value_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/and_value_valarray.pass.cpp
index c323d13ff..9be01bfcd 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/and_value_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/and_value_valarray.pass.cpp
@@ -17,6 +17,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -28,7 +29,7 @@ int main()
         std::valarray<T> v2(a2, N);
         std::valarray<bool> v3 = 5 && v2;
         assert(v2.size() == v3.size());
-        for (int i = 0; i < v3.size(); ++i)
+        for (std::size_t i = 0; i < v3.size(); ++i)
             assert(v3[i] == a3[i]);
     }
     {
@@ -39,7 +40,7 @@ int main()
         std::valarray<T> v2(a2, N);
         std::valarray<bool> v3 = 0 && v2;
         assert(v2.size() == v3.size());
-        for (int i = 0; i < v3.size(); ++i)
+        for (std::size_t i = 0; i < v3.size(); ++i)
             assert(v3[i] == a3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/equal_valarray_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/equal_valarray_valarray.pass.cpp
index 6222e9159..78dabed3a 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/equal_valarray_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/equal_valarray_valarray.pass.cpp
@@ -17,6 +17,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -31,7 +32,7 @@ int main()
         std::valarray<bool> v3 = v1 == v2;
         assert(v1.size() == v2.size());
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v3[i] == a3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/equal_valarray_value.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/equal_valarray_value.pass.cpp
index dca65055b..31c040bfe 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/equal_valarray_value.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/equal_valarray_value.pass.cpp
@@ -17,6 +17,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -28,7 +29,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<bool> v3 = v1 == 2;
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v3[i] == a3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/equal_value_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/equal_value_valarray.pass.cpp
index 532219e2e..89d627de5 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/equal_value_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/equal_value_valarray.pass.cpp
@@ -17,6 +17,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -28,7 +29,7 @@ int main()
         std::valarray<T> v2(a2, N);
         std::valarray<bool> v3 = 2 == v2;
         assert(v2.size() == v3.size());
-        for (int i = 0; i < v3.size(); ++i)
+        for (std::size_t i = 0; i < v3.size(); ++i)
             assert(v3[i] == a3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/greater_equal_valarray_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/greater_equal_valarray_valarray.pass.cpp
index 75e62693b..f4a5e18e8 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/greater_equal_valarray_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/greater_equal_valarray_valarray.pass.cpp
@@ -17,6 +17,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -31,7 +32,7 @@ int main()
         std::valarray<bool> v3 = v1 >= v2;
         assert(v1.size() == v2.size());
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v3[i] == a3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/greater_equal_valarray_value.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/greater_equal_valarray_value.pass.cpp
index 020706dfa..f0ea1e9f1 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/greater_equal_valarray_value.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/greater_equal_valarray_value.pass.cpp
@@ -17,6 +17,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -28,7 +29,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<bool> v3 = v1 >= 2;
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v3[i] == a3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/greater_equal_value_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/greater_equal_value_valarray.pass.cpp
index faf2003ad..99b97d55c 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/greater_equal_value_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/greater_equal_value_valarray.pass.cpp
@@ -17,6 +17,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -28,7 +29,7 @@ int main()
         std::valarray<T> v2(a2, N);
         std::valarray<bool> v3 = 2 >= v2;
         assert(v2.size() == v3.size());
-        for (int i = 0; i < v3.size(); ++i)
+        for (std::size_t i = 0; i < v3.size(); ++i)
             assert(v3[i] == a3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/greater_valarray_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/greater_valarray_valarray.pass.cpp
index 3276085f3..bdfd191e4 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/greater_valarray_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/greater_valarray_valarray.pass.cpp
@@ -17,6 +17,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -31,7 +32,7 @@ int main()
         std::valarray<bool> v3 = v1 > v2;
         assert(v1.size() == v2.size());
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v3[i] == a3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/greater_valarray_value.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/greater_valarray_value.pass.cpp
index 1ab774cdf..a6cef8672 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/greater_valarray_value.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/greater_valarray_value.pass.cpp
@@ -17,6 +17,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -28,7 +29,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<bool> v3 = v1 > 2;
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v3[i] == a3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/greater_value_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/greater_value_valarray.pass.cpp
index c5012d6fc..712e39681 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/greater_value_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/greater_value_valarray.pass.cpp
@@ -17,6 +17,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -28,7 +29,7 @@ int main()
         std::valarray<T> v2(a2, N);
         std::valarray<bool> v3 = 2 > v2;
         assert(v2.size() == v3.size());
-        for (int i = 0; i < v3.size(); ++i)
+        for (std::size_t i = 0; i < v3.size(); ++i)
             assert(v3[i] == a3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/less_equal_valarray_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/less_equal_valarray_valarray.pass.cpp
index ceb665883..8ba8394fa 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/less_equal_valarray_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/less_equal_valarray_valarray.pass.cpp
@@ -17,6 +17,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -31,7 +32,7 @@ int main()
         std::valarray<bool> v3 = v1 <= v2;
         assert(v1.size() == v2.size());
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v3[i] == a3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/less_equal_valarray_value.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/less_equal_valarray_value.pass.cpp
index 4a391a3f3..242ce8a42 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/less_equal_valarray_value.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/less_equal_valarray_value.pass.cpp
@@ -17,6 +17,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -28,7 +29,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<bool> v3 = v1 <= 2;
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v3[i] == a3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/less_equal_value_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/less_equal_value_valarray.pass.cpp
index cf34e18b9..1b9ea4dcc 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/less_equal_value_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/less_equal_value_valarray.pass.cpp
@@ -17,6 +17,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -28,7 +29,7 @@ int main()
         std::valarray<T> v2(a2, N);
         std::valarray<bool> v3 = 2 <= v2;
         assert(v2.size() == v3.size());
-        for (int i = 0; i < v3.size(); ++i)
+        for (std::size_t i = 0; i < v3.size(); ++i)
             assert(v3[i] == a3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/less_valarray_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/less_valarray_valarray.pass.cpp
index 0fa99488b..5a5408537 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/less_valarray_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/less_valarray_valarray.pass.cpp
@@ -17,6 +17,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -31,7 +32,7 @@ int main()
         std::valarray<bool> v3 = v1 < v2;
         assert(v1.size() == v2.size());
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v3[i] == a3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/less_valarray_value.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/less_valarray_value.pass.cpp
index 7a47c900a..50b074a1b 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/less_valarray_value.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/less_valarray_value.pass.cpp
@@ -17,6 +17,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -28,7 +29,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<bool> v3 = v1 < 2;
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v3[i] == a3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/less_value_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/less_value_valarray.pass.cpp
index 4d6cbadcc..248037d44 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/less_value_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/less_value_valarray.pass.cpp
@@ -17,6 +17,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -28,7 +29,7 @@ int main()
         std::valarray<T> v2(a2, N);
         std::valarray<bool> v3 = 2 < v2;
         assert(v2.size() == v3.size());
-        for (int i = 0; i < v3.size(); ++i)
+        for (std::size_t i = 0; i < v3.size(); ++i)
             assert(v3[i] == a3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/not_equal_valarray_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/not_equal_valarray_valarray.pass.cpp
index c9675a9ce..a4404d14a 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/not_equal_valarray_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/not_equal_valarray_valarray.pass.cpp
@@ -17,6 +17,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -31,7 +32,7 @@ int main()
         std::valarray<bool> v3 = v1 != v2;
         assert(v1.size() == v2.size());
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v3[i] == a3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/not_equal_valarray_value.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/not_equal_valarray_value.pass.cpp
index 9daa7289b..45df48f94 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/not_equal_valarray_value.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/not_equal_valarray_value.pass.cpp
@@ -17,6 +17,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -28,7 +29,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<bool> v3 = v1 != 2;
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v3[i] == a3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/not_equal_value_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/not_equal_value_valarray.pass.cpp
index 37439aabc..854546447 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/not_equal_value_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/not_equal_value_valarray.pass.cpp
@@ -17,6 +17,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -28,7 +29,7 @@ int main()
         std::valarray<T> v2(a2, N);
         std::valarray<bool> v3 = 2 != v2;
         assert(v2.size() == v3.size());
-        for (int i = 0; i < v3.size(); ++i)
+        for (std::size_t i = 0; i < v3.size(); ++i)
             assert(v3[i] == a3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/or_valarray_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/or_valarray_valarray.pass.cpp
index 9a2f84e8f..1f2a7da96 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/or_valarray_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/or_valarray_valarray.pass.cpp
@@ -17,6 +17,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -31,7 +32,7 @@ int main()
         std::valarray<bool> v3 = v1 || v2;
         assert(v1.size() == v2.size());
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v3[i] == a3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/or_valarray_value.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/or_valarray_value.pass.cpp
index 789df5bad..426c0558b 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/or_valarray_value.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/or_valarray_value.pass.cpp
@@ -17,6 +17,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -28,7 +29,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<bool> v3 = v1 || 5;
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v3[i] == a3[i]);
     }
     {
@@ -39,7 +40,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<bool> v3 = v1 || 0;
         assert(v1.size() == v3.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v3[i] == a3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/or_value_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/or_value_valarray.pass.cpp
index d66905960..3bf0fe79d 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/or_value_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/or_value_valarray.pass.cpp
@@ -17,6 +17,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -28,7 +29,7 @@ int main()
         std::valarray<T> v2(a2, N);
         std::valarray<bool> v3 = 5 || v2;
         assert(v2.size() == v3.size());
-        for (int i = 0; i < v3.size(); ++i)
+        for (std::size_t i = 0; i < v3.size(); ++i)
             assert(v3[i] == a3[i]);
     }
     {
@@ -39,7 +40,7 @@ int main()
         std::valarray<T> v2(a2, N);
         std::valarray<bool> v3 = 0 || v2;
         assert(v2.size() == v3.size());
-        for (int i = 0; i < v3.size(); ++i)
+        for (std::size_t i = 0; i < v3.size(); ++i)
             assert(v3[i] == a3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.special/swap.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.special/swap.pass.cpp
index 84f73945c..bd845ce6e 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.special/swap.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.special/swap.pass.cpp
@@ -17,6 +17,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -32,10 +33,10 @@ int main()
         std::valarray<T> v2_save = v2;
         swap(v1, v2);
         assert(v1.size() == v2_save.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v1[i] == v2_save[i]);
         assert(v2.size() == v1_save.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == v1_save[i]);
     }
     {
@@ -49,10 +50,10 @@ int main()
         std::valarray<T> v2_save = v2;
         swap(v1, v2);
         assert(v1.size() == v2_save.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v1[i] == v2_save[i]);
         assert(v2.size() == v1_save.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == v1_save[i]);
     }
     {
@@ -66,10 +67,10 @@ int main()
         std::valarray<T> v2_save = v2;
         swap(v1, v2);
         assert(v1.size() == v2_save.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v1[i] == v2_save[i]);
         assert(v2.size() == v1_save.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == v1_save[i]);
     }
     {
@@ -82,10 +83,10 @@ int main()
         std::valarray<T> v2_save = v2;
         swap(v1, v2);
         assert(v1.size() == v2_save.size());
-        for (int i = 0; i < v1.size(); ++i)
+        for (std::size_t i = 0; i < v1.size(); ++i)
             assert(v1[i] == v2_save[i]);
         assert(v2.size() == v1_save.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == v1_save[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/abs_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/abs_valarray.pass.cpp
index 7d112a611..9af8b1a93 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/abs_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/abs_valarray.pass.cpp
@@ -17,6 +17,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -28,7 +29,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v3 = abs(v1);
         assert(v3.size() == v1.size());
-        for (int i = 0; i < v3.size(); ++i)
+        for (std::size_t i = 0; i < v3.size(); ++i)
             assert(v3[i] == a3[i]);
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/acos_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/acos_valarray.pass.cpp
index ef2451d76..2814e2ed1 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/acos_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/acos_valarray.pass.cpp
@@ -18,6 +18,7 @@
 #include <valarray>
 #include <cassert>
 #include <sstream>
+#include <cstddef>
 
 bool is_about(double x, double y, int p)
 {
@@ -45,7 +46,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v3 = acos(v1);
         assert(v3.size() == v1.size());
-        for (int i = 0; i < v3.size(); ++i)
+        for (std::size_t i = 0; i < v3.size(); ++i)
             assert(is_about(v3[i], a3[i], 10));
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/asin_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/asin_valarray.pass.cpp
index 11c7c68d6..f2f873cc6 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/asin_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/asin_valarray.pass.cpp
@@ -18,6 +18,7 @@
 #include <valarray>
 #include <cassert>
 #include <sstream>
+#include <cstddef>
 
 bool is_about(double x, double y, int p)
 {
@@ -45,7 +46,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v3 = asin(v1);
         assert(v3.size() == v1.size());
-        for (int i = 0; i < v3.size(); ++i)
+        for (std::size_t i = 0; i < v3.size(); ++i)
             assert(is_about(v3[i], a3[i], 10));
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/atan2_valarray_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/atan2_valarray_valarray.pass.cpp
index b86041380..d5ae07be3 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/atan2_valarray_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/atan2_valarray_valarray.pass.cpp
@@ -18,6 +18,7 @@
 #include <valarray>
 #include <cassert>
 #include <sstream>
+#include <cstddef>
 
 bool is_about(double x, double y, int p)
 {
@@ -47,7 +48,7 @@ int main()
         std::valarray<T> v2(a2, N);
         std::valarray<T> v3 = atan2(v1, v2);
         assert(v3.size() == v1.size());
-        for (int i = 0; i < v3.size(); ++i)
+        for (std::size_t i = 0; i < v3.size(); ++i)
             assert(is_about(v3[i], a3[i], 10));
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/atan2_valarray_value.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/atan2_valarray_value.pass.cpp
index 94ffebf79..8345f950d 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/atan2_valarray_value.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/atan2_valarray_value.pass.cpp
@@ -18,6 +18,7 @@
 #include <valarray>
 #include <cassert>
 #include <sstream>
+#include <cstddef>
 
 bool is_about(double x, double y, int p)
 {
@@ -45,7 +46,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v3 = atan2(v1, .75);
         assert(v3.size() == v1.size());
-        for (int i = 0; i < v3.size(); ++i)
+        for (std::size_t i = 0; i < v3.size(); ++i)
             assert(is_about(v3[i], a3[i], 10));
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/atan2_value_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/atan2_value_valarray.pass.cpp
index 360e70ee7..f28a69a17 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/atan2_value_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/atan2_value_valarray.pass.cpp
@@ -18,6 +18,7 @@
 #include <valarray>
 #include <cassert>
 #include <sstream>
+#include <cstddef>
 
 bool is_about(double x, double y, int p)
 {
@@ -45,7 +46,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v3 = atan2(.75, v1);
         assert(v3.size() == v1.size());
-        for (int i = 0; i < v3.size(); ++i)
+        for (std::size_t i = 0; i < v3.size(); ++i)
             assert(is_about(v3[i], a3[i], 10));
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/atan_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/atan_valarray.pass.cpp
index e66118b1d..78740a2b8 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/atan_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/atan_valarray.pass.cpp
@@ -18,6 +18,7 @@
 #include <valarray>
 #include <cassert>
 #include <sstream>
+#include <cstddef>
 
 bool is_about(double x, double y, int p)
 {
@@ -45,7 +46,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v3 = atan(v1);
         assert(v3.size() == v1.size());
-        for (int i = 0; i < v3.size(); ++i)
+        for (std::size_t i = 0; i < v3.size(); ++i)
             assert(is_about(v3[i], a3[i], 10));
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/cos_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/cos_valarray.pass.cpp
index baeb0d067..eb5b9a307 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/cos_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/cos_valarray.pass.cpp
@@ -18,6 +18,7 @@
 #include <valarray>
 #include <cassert>
 #include <sstream>
+#include <cstddef>
 
 bool is_about(double x, double y, int p)
 {
@@ -45,7 +46,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v3 = cos(v1);
         assert(v3.size() == v1.size());
-        for (int i = 0; i < v3.size(); ++i)
+        for (std::size_t i = 0; i < v3.size(); ++i)
             assert(is_about(v3[i], a3[i], 10));
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/cosh_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/cosh_valarray.pass.cpp
index 02a547a54..f8075d31b 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/cosh_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/cosh_valarray.pass.cpp
@@ -18,6 +18,7 @@
 #include <valarray>
 #include <cassert>
 #include <sstream>
+#include <cstddef>
 
 bool is_about(double x, double y, int p)
 {
@@ -45,7 +46,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v3 = cosh(v1);
         assert(v3.size() == v1.size());
-        for (int i = 0; i < v3.size(); ++i)
+        for (std::size_t i = 0; i < v3.size(); ++i)
             assert(is_about(v3[i], a3[i], 10));
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/exp_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/exp_valarray.pass.cpp
index dce9c5546..741e1abba 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/exp_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/exp_valarray.pass.cpp
@@ -18,6 +18,7 @@
 #include <valarray>
 #include <cassert>
 #include <sstream>
+#include <cstddef>
 
 bool is_about(double x, double y, int p)
 {
@@ -45,7 +46,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v3 = exp(v1);
         assert(v3.size() == v1.size());
-        for (int i = 0; i < v3.size(); ++i)
+        for (std::size_t i = 0; i < v3.size(); ++i)
             assert(is_about(v3[i], a3[i], 10));
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/log10_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/log10_valarray.pass.cpp
index 2b9908198..a2cfe6846 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/log10_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/log10_valarray.pass.cpp
@@ -18,6 +18,7 @@
 #include <valarray>
 #include <cassert>
 #include <sstream>
+#include <cstddef>
 
 bool is_about(double x, double y, int p)
 {
@@ -45,7 +46,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v3 = log10(v1);
         assert(v3.size() == v1.size());
-        for (int i = 0; i < v3.size(); ++i)
+        for (std::size_t i = 0; i < v3.size(); ++i)
             assert(is_about(v3[i], a3[i], 10));
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/log_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/log_valarray.pass.cpp
index 2c51cd6ed..d3795f97f 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/log_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/log_valarray.pass.cpp
@@ -18,6 +18,7 @@
 #include <valarray>
 #include <cassert>
 #include <sstream>
+#include <cstddef>
 
 bool is_about(double x, double y, int p)
 {
@@ -45,7 +46,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v3 = log(v1);
         assert(v3.size() == v1.size());
-        for (int i = 0; i < v3.size(); ++i)
+        for (std::size_t i = 0; i < v3.size(); ++i)
             assert(is_about(v3[i], a3[i], 10));
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/pow_valarray_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/pow_valarray_valarray.pass.cpp
index 37ca74292..d0f8bdb7c 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/pow_valarray_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/pow_valarray_valarray.pass.cpp
@@ -18,6 +18,7 @@
 #include <valarray>
 #include <cassert>
 #include <sstream>
+#include <cstddef>
 
 bool is_about(double x, double y, int p)
 {
@@ -47,7 +48,7 @@ int main()
         std::valarray<T> v2(a2, N);
         std::valarray<T> v3 = pow(v1, v2);
         assert(v3.size() == v1.size());
-        for (int i = 0; i < v3.size(); ++i)
+        for (std::size_t i = 0; i < v3.size(); ++i)
             assert(is_about(v3[i], a3[i], 10));
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/pow_valarray_value.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/pow_valarray_value.pass.cpp
index 290ddc6f6..22017237b 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/pow_valarray_value.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/pow_valarray_value.pass.cpp
@@ -18,6 +18,7 @@
 #include <valarray>
 #include <cassert>
 #include <sstream>
+#include <cstddef>
 
 bool is_about(double x, double y, int p)
 {
@@ -45,7 +46,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v3 = pow(v1, 2.0);
         assert(v3.size() == v1.size());
-        for (int i = 0; i < v3.size(); ++i)
+        for (std::size_t i = 0; i < v3.size(); ++i)
             assert(is_about(v3[i], a3[i], 10));
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/pow_value_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/pow_value_valarray.pass.cpp
index f52990b4b..e34f664c2 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/pow_value_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/pow_value_valarray.pass.cpp
@@ -18,6 +18,7 @@
 #include <valarray>
 #include <cassert>
 #include <sstream>
+#include <cstddef>
 
 bool is_about(double x, double y, int p)
 {
@@ -45,7 +46,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v3 = pow(2.0, v1);
         assert(v3.size() == v1.size());
-        for (int i = 0; i < v3.size(); ++i)
+        for (std::size_t i = 0; i < v3.size(); ++i)
             assert(is_about(v3[i], a3[i], 10));
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/sin_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/sin_valarray.pass.cpp
index f05bd058f..30b30caf9 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/sin_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/sin_valarray.pass.cpp
@@ -18,6 +18,7 @@
 #include <valarray>
 #include <cassert>
 #include <sstream>
+#include <cstddef>
 
 bool is_about(double x, double y, int p)
 {
@@ -45,7 +46,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v3 = sin(v1);
         assert(v3.size() == v1.size());
-        for (int i = 0; i < v3.size(); ++i)
+        for (std::size_t i = 0; i < v3.size(); ++i)
             assert(is_about(v3[i], a3[i], 10));
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/sinh_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/sinh_valarray.pass.cpp
index 73dca833b..6fbb4f063 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/sinh_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/sinh_valarray.pass.cpp
@@ -18,6 +18,7 @@
 #include <valarray>
 #include <cassert>
 #include <sstream>
+#include <cstddef>
 
 bool is_about(double x, double y, int p)
 {
@@ -45,7 +46,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v3 = sinh(v1);
         assert(v3.size() == v1.size());
-        for (int i = 0; i < v3.size(); ++i)
+        for (std::size_t i = 0; i < v3.size(); ++i)
             assert(is_about(v3[i], a3[i], 10));
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/sqrt_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/sqrt_valarray.pass.cpp
index 193dcd21f..e577a83ad 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/sqrt_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/sqrt_valarray.pass.cpp
@@ -18,6 +18,7 @@
 #include <valarray>
 #include <cassert>
 #include <sstream>
+#include <cstddef>
 
 bool is_about(double x, double y, int p)
 {
@@ -45,7 +46,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v3 = sqrt(v1);
         assert(v3.size() == v1.size());
-        for (int i = 0; i < v3.size(); ++i)
+        for (std::size_t i = 0; i < v3.size(); ++i)
             assert(is_about(v3[i], a3[i], 10));
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/tan_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/tan_valarray.pass.cpp
index 021dbc4d7..9db12a351 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/tan_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/tan_valarray.pass.cpp
@@ -18,6 +18,7 @@
 #include <valarray>
 #include <cassert>
 #include <sstream>
+#include <cstddef>
 
 bool is_about(double x, double y, int p)
 {
@@ -45,7 +46,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v3 = tan(v1);
         assert(v3.size() == v1.size());
-        for (int i = 0; i < v3.size(); ++i)
+        for (std::size_t i = 0; i < v3.size(); ++i)
             assert(is_about(v3[i], a3[i], 10));
     }
 }
diff --git a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/tanh_valarray.pass.cpp b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/tanh_valarray.pass.cpp
index 4cc58c321..dfcd53106 100644
--- a/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/tanh_valarray.pass.cpp
+++ b/test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/tanh_valarray.pass.cpp
@@ -18,6 +18,7 @@
 #include <valarray>
 #include <cassert>
 #include <sstream>
+#include <cstddef>
 
 bool is_about(double x, double y, int p)
 {
@@ -45,7 +46,7 @@ int main()
         std::valarray<T> v1(a1, N);
         std::valarray<T> v3 = tanh(v1);
         assert(v3.size() == v1.size());
-        for (int i = 0; i < v3.size(); ++i)
+        for (std::size_t i = 0; i < v3.size(); ++i)
             assert(is_about(v3[i], a3[i], 10));
     }
 }
diff --git a/test/std/numerics/rand/rand.dis/rand.dist.bern/rand.dist.bern.bernoulli/eval.pass.cpp b/test/std/numerics/rand/rand.dis/rand.dist.bern/rand.dist.bern.bernoulli/eval.pass.cpp
index b267c2477..0118ae0bf 100644
--- a/test/std/numerics/rand/rand.dis/rand.dist.bern/rand.dist.bern.bernoulli/eval.pass.cpp
+++ b/test/std/numerics/rand/rand.dis/rand.dist.bern/rand.dist.bern.bernoulli/eval.pass.cpp
@@ -17,6 +17,7 @@
 #include <numeric>
 #include <vector>
 #include <cassert>
+#include <cstddef>
 
 template <class T>
 inline
@@ -42,7 +43,7 @@ int main()
         double var = 0;
         double skew = 0;
         double kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             double dbl = (u[i] - mean);
             double d2 = sqr(dbl);
@@ -78,7 +79,7 @@ int main()
         double var = 0;
         double skew = 0;
         double kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             double dbl = (u[i] - mean);
             double d2 = sqr(dbl);
diff --git a/test/std/numerics/rand/rand.dis/rand.dist.bern/rand.dist.bern.bernoulli/eval_param.pass.cpp b/test/std/numerics/rand/rand.dis/rand.dist.bern/rand.dist.bern.bernoulli/eval_param.pass.cpp
index f96df8230..0cdb0b77a 100644
--- a/test/std/numerics/rand/rand.dis/rand.dist.bern/rand.dist.bern.bernoulli/eval_param.pass.cpp
+++ b/test/std/numerics/rand/rand.dis/rand.dist.bern/rand.dist.bern.bernoulli/eval_param.pass.cpp
@@ -17,6 +17,7 @@
 #include <numeric>
 #include <vector>
 #include <cassert>
+#include <cstddef>
 
 template <class T>
 inline
@@ -44,7 +45,7 @@ int main()
         double var = 0;
         double skew = 0;
         double kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             double dbl = (u[i] - mean);
             double d2 = sqr(dbl);
@@ -82,7 +83,7 @@ int main()
         double var = 0;
         double skew = 0;
         double kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             double dbl = (u[i] - mean);
             double d2 = sqr(dbl);
diff --git a/test/std/numerics/rand/rand.dis/rand.dist.norm/rand.dist.norm.chisq/eval.pass.cpp b/test/std/numerics/rand/rand.dis/rand.dist.norm/rand.dist.norm.chisq/eval.pass.cpp
index f6bc3c739..3b54790ae 100644
--- a/test/std/numerics/rand/rand.dis/rand.dist.norm/rand.dist.norm.chisq/eval.pass.cpp
+++ b/test/std/numerics/rand/rand.dis/rand.dist.norm/rand.dist.norm.chisq/eval.pass.cpp
@@ -20,6 +20,7 @@
 #include <cassert>
 #include <vector>
 #include <numeric>
+#include <cstddef>
 
 template <class T>
 inline
@@ -49,7 +50,7 @@ int main()
         double var = 0;
         double skew = 0;
         double kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             double dbl = (u[i] - mean);
             double d2 = sqr(dbl);
@@ -89,7 +90,7 @@ int main()
         double var = 0;
         double skew = 0;
         double kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             double dbl = (u[i] - mean);
             double d2 = sqr(dbl);
@@ -129,7 +130,7 @@ int main()
         double var = 0;
         double skew = 0;
         double kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             double dbl = (u[i] - mean);
             double d2 = sqr(dbl);
diff --git a/test/std/numerics/rand/rand.dis/rand.dist.norm/rand.dist.norm.chisq/eval_param.pass.cpp b/test/std/numerics/rand/rand.dis/rand.dist.norm/rand.dist.norm.chisq/eval_param.pass.cpp
index fd52a0488..dbc2d09df 100644
--- a/test/std/numerics/rand/rand.dis/rand.dist.norm/rand.dist.norm.chisq/eval_param.pass.cpp
+++ b/test/std/numerics/rand/rand.dis/rand.dist.norm/rand.dist.norm.chisq/eval_param.pass.cpp
@@ -20,6 +20,7 @@
 #include <cassert>
 #include <vector>
 #include <numeric>
+#include <cstddef>
 
 template <class T>
 inline
@@ -50,7 +51,7 @@ int main()
         double var = 0;
         double skew = 0;
         double kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             double dbl = (u[i] - mean);
             double d2 = sqr(dbl);
@@ -91,7 +92,7 @@ int main()
         double var = 0;
         double skew = 0;
         double kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             double dbl = (u[i] - mean);
             double d2 = sqr(dbl);
@@ -132,7 +133,7 @@ int main()
         double var = 0;
         double skew = 0;
         double kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             double dbl = (u[i] - mean);
             double d2 = sqr(dbl);
diff --git a/test/std/numerics/rand/rand.dis/rand.dist.norm/rand.dist.norm.normal/eval.pass.cpp b/test/std/numerics/rand/rand.dis/rand.dist.norm/rand.dist.norm.normal/eval.pass.cpp
index 69f786397..e1084d3ef 100644
--- a/test/std/numerics/rand/rand.dis/rand.dist.norm/rand.dist.norm.normal/eval.pass.cpp
+++ b/test/std/numerics/rand/rand.dis/rand.dist.norm/rand.dist.norm.normal/eval.pass.cpp
@@ -20,6 +20,7 @@
 #include <cassert>
 #include <vector>
 #include <numeric>
+#include <cstddef>
 
 template <class T>
 inline
@@ -45,7 +46,7 @@ int main()
         double var = 0;
         double skew = 0;
         double kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             double dbl = (u[i] - mean);
             double d2 = sqr(dbl);
diff --git a/test/std/numerics/rand/rand.dis/rand.dist.norm/rand.dist.norm.normal/eval_param.pass.cpp b/test/std/numerics/rand/rand.dis/rand.dist.norm/rand.dist.norm.normal/eval_param.pass.cpp
index af9c547cb..8527052c7 100644
--- a/test/std/numerics/rand/rand.dis/rand.dist.norm/rand.dist.norm.normal/eval_param.pass.cpp
+++ b/test/std/numerics/rand/rand.dis/rand.dist.norm/rand.dist.norm.normal/eval_param.pass.cpp
@@ -20,6 +20,7 @@
 #include <cassert>
 #include <vector>
 #include <numeric>
+#include <cstddef>
 
 template <class T>
 inline
@@ -46,7 +47,7 @@ int main()
         double var = 0;
         double skew = 0;
         double kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             double dbl = (u[i] - mean);
             double d2 = sqr(dbl);
diff --git a/test/std/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.exp/eval.pass.cpp b/test/std/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.exp/eval.pass.cpp
index 42965b0e6..223d6f4d2 100644
--- a/test/std/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.exp/eval.pass.cpp
+++ b/test/std/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.exp/eval.pass.cpp
@@ -20,6 +20,7 @@
 #include <cassert>
 #include <vector>
 #include <numeric>
+#include <cstddef>
 
 template <class T>
 inline
@@ -49,7 +50,7 @@ int main()
         double var = 0;
         double skew = 0;
         double kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             double dbl = (u[i] - mean);
             double d2 = sqr(dbl);
@@ -89,7 +90,7 @@ int main()
         double var = 0;
         double skew = 0;
         double kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             double dbl = (u[i] - mean);
             double d2 = sqr(dbl);
@@ -129,7 +130,7 @@ int main()
         double var = 0;
         double skew = 0;
         double kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             double dbl = (u[i] - mean);
             double d2 = sqr(dbl);
diff --git a/test/std/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.exp/eval_param.pass.cpp b/test/std/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.exp/eval_param.pass.cpp
index e7de18fdb..465f5a70a 100644
--- a/test/std/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.exp/eval_param.pass.cpp
+++ b/test/std/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.exp/eval_param.pass.cpp
@@ -20,6 +20,7 @@
 #include <cassert>
 #include <vector>
 #include <numeric>
+#include <cstddef>
 
 template <class T>
 inline
@@ -50,7 +51,7 @@ int main()
         double var = 0;
         double skew = 0;
         double kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             double dbl = (u[i] - mean);
             double d2 = sqr(dbl);
diff --git a/test/std/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.weibull/eval.pass.cpp b/test/std/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.weibull/eval.pass.cpp
index cfec8c0d8..10337907b 100644
--- a/test/std/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.weibull/eval.pass.cpp
+++ b/test/std/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.weibull/eval.pass.cpp
@@ -20,6 +20,7 @@
 #include <cassert>
 #include <vector>
 #include <numeric>
+#include <cstddef>
 
 template <class T>
 inline
@@ -49,7 +50,7 @@ int main()
         double var = 0;
         double skew = 0;
         double kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             double dbl = (u[i] - mean);
             double d2 = sqr(dbl);
@@ -93,7 +94,7 @@ int main()
         double var = 0;
         double skew = 0;
         double kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             double dbl = (u[i] - mean);
             double d2 = sqr(dbl);
@@ -137,7 +138,7 @@ int main()
         double var = 0;
         double skew = 0;
         double kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             double dbl = (u[i] - mean);
             double d2 = sqr(dbl);
diff --git a/test/std/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.weibull/eval_param.pass.cpp b/test/std/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.weibull/eval_param.pass.cpp
index a19654dbd..e13507672 100644
--- a/test/std/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.weibull/eval_param.pass.cpp
+++ b/test/std/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.weibull/eval_param.pass.cpp
@@ -20,6 +20,7 @@
 #include <cassert>
 #include <vector>
 #include <numeric>
+#include <cstddef>
 
 template <class T>
 inline
@@ -50,7 +51,7 @@ int main()
         double var = 0;
         double skew = 0;
         double kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             double dbl = (u[i] - mean);
             double d2 = sqr(dbl);
@@ -95,7 +96,7 @@ int main()
         double var = 0;
         double skew = 0;
         double kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             double dbl = (u[i] - mean);
             double d2 = sqr(dbl);
@@ -140,7 +141,7 @@ int main()
         double var = 0;
         double skew = 0;
         double kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             double dbl = (u[i] - mean);
             double d2 = sqr(dbl);
diff --git a/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/eval_param.pass.cpp b/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/eval_param.pass.cpp
index ffd53c05d..3353ab642 100644
--- a/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/eval_param.pass.cpp
+++ b/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/eval_param.pass.cpp
@@ -22,6 +22,7 @@
 #include <iterator>
 #include <numeric>
 #include <cassert>
+#include <cstddef>
 
 template <class T>
 inline
@@ -53,7 +54,7 @@ int main()
         }
         std::vector<double> prob(std::begin(p), std::end(p));
         double s = std::accumulate(prob.begin(), prob.end(), 0.0);
-        for (int i = 0; i < prob.size(); ++i)
+        for (std::size_t i = 0; i < prob.size(); ++i)
             prob[i] /= s;
         std::sort(u.begin(), u.end());
         for (int i = 0; i < Np; ++i)
diff --git a/test/std/numerics/rand/rand.dis/rand.dist.uni/rand.dist.uni.int/eval.pass.cpp b/test/std/numerics/rand/rand.dis/rand.dist.uni/rand.dist.uni.int/eval.pass.cpp
index 2abc9d4c6..1be34f615 100644
--- a/test/std/numerics/rand/rand.dis/rand.dist.uni/rand.dist.uni.int/eval.pass.cpp
+++ b/test/std/numerics/rand/rand.dis/rand.dist.uni/rand.dist.uni.int/eval.pass.cpp
@@ -20,6 +20,7 @@
 #include <cassert>
 #include <vector>
 #include <numeric>
+#include <cstddef>
 
 template <class T>
 inline
@@ -49,7 +50,7 @@ int main()
         double var = 0;
         double skew = 0;
         double kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             double dbl = (u[i] - mean);
             double d2 = sqr(dbl);
@@ -90,7 +91,7 @@ int main()
         double var = 0;
         double skew = 0;
         double kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             double dbl = (u[i] - mean);
             double d2 = sqr(dbl);
@@ -131,7 +132,7 @@ int main()
         double var = 0;
         double skew = 0;
         double kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             double dbl = (u[i] - mean);
             double d2 = sqr(dbl);
@@ -172,7 +173,7 @@ int main()
         double var = 0;
         double skew = 0;
         double kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             double dbl = (u[i] - mean);
             double d2 = sqr(dbl);
@@ -213,7 +214,7 @@ int main()
         double var = 0;
         double skew = 0;
         double kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             double dbl = (u[i] - mean);
             double d2 = sqr(dbl);
@@ -254,7 +255,7 @@ int main()
         double var = 0;
         double skew = 0;
         double kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             double dbl = (u[i] - mean);
             double d2 = sqr(dbl);
@@ -295,7 +296,7 @@ int main()
         double var = 0;
         double skew = 0;
         double kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             double dbl = (u[i] - mean);
             double d2 = sqr(dbl);
@@ -336,7 +337,7 @@ int main()
         double var = 0;
         double skew = 0;
         double kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             double dbl = (u[i] - mean);
             double d2 = sqr(dbl);
@@ -377,7 +378,7 @@ int main()
         double var = 0;
         double skew = 0;
         double kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             double dbl = (u[i] - mean);
             double d2 = sqr(dbl);
@@ -429,7 +430,7 @@ int main()
         double var = 0;
         double skew = 0;
         double kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             double dbl = (u[i] - mean);
             double d2 = sqr(dbl);
diff --git a/test/std/numerics/rand/rand.dis/rand.dist.uni/rand.dist.uni.int/eval_param.pass.cpp b/test/std/numerics/rand/rand.dis/rand.dist.uni/rand.dist.uni.int/eval_param.pass.cpp
index 849f25107..bb5a59d4f 100644
--- a/test/std/numerics/rand/rand.dis/rand.dist.uni/rand.dist.uni.int/eval_param.pass.cpp
+++ b/test/std/numerics/rand/rand.dis/rand.dist.uni/rand.dist.uni.int/eval_param.pass.cpp
@@ -18,6 +18,7 @@
 #include <cassert>
 #include <vector>
 #include <numeric>
+#include <cstddef>
 
 template <class T>
 inline
@@ -49,7 +50,7 @@ int main()
         double var = 0;
         double skew = 0;
         double kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             double dbl = (u[i] - mean);
             double d2 = sqr(dbl);
diff --git a/test/std/numerics/rand/rand.dis/rand.dist.uni/rand.dist.uni.real/eval.pass.cpp b/test/std/numerics/rand/rand.dis/rand.dist.uni/rand.dist.uni.real/eval.pass.cpp
index e000363f3..621fdc1bf 100644
--- a/test/std/numerics/rand/rand.dis/rand.dist.uni/rand.dist.uni.real/eval.pass.cpp
+++ b/test/std/numerics/rand/rand.dis/rand.dist.uni/rand.dist.uni.real/eval.pass.cpp
@@ -20,6 +20,7 @@
 #include <cassert>
 #include <vector>
 #include <numeric>
+#include <cstddef>
 
 template <class T>
 inline
@@ -49,7 +50,7 @@ int main()
         D::result_type var = 0;
         D::result_type skew = 0;
         D::result_type kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             D::result_type dbl = (u[i] - mean);
             D::result_type d2 = sqr(dbl);
@@ -89,7 +90,7 @@ int main()
         D::result_type var = 0;
         D::result_type skew = 0;
         D::result_type kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             D::result_type dbl = (u[i] - mean);
             D::result_type d2 = sqr(dbl);
@@ -129,7 +130,7 @@ int main()
         D::result_type var = 0;
         D::result_type skew = 0;
         D::result_type kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             D::result_type dbl = (u[i] - mean);
             D::result_type d2 = sqr(dbl);
@@ -169,7 +170,7 @@ int main()
         D::result_type var = 0;
         D::result_type skew = 0;
         D::result_type kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             D::result_type dbl = (u[i] - mean);
             D::result_type d2 = sqr(dbl);
@@ -209,7 +210,7 @@ int main()
         D::result_type var = 0;
         D::result_type skew = 0;
         D::result_type kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             D::result_type dbl = (u[i] - mean);
             D::result_type d2 = sqr(dbl);
@@ -249,7 +250,7 @@ int main()
         D::result_type var = 0;
         D::result_type skew = 0;
         D::result_type kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             D::result_type dbl = (u[i] - mean);
             D::result_type d2 = sqr(dbl);
@@ -289,7 +290,7 @@ int main()
         D::result_type var = 0;
         D::result_type skew = 0;
         D::result_type kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             D::result_type dbl = (u[i] - mean);
             D::result_type d2 = sqr(dbl);
@@ -329,7 +330,7 @@ int main()
         D::result_type var = 0;
         D::result_type skew = 0;
         D::result_type kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             D::result_type dbl = (u[i] - mean);
             D::result_type d2 = sqr(dbl);
@@ -369,7 +370,7 @@ int main()
         D::result_type var = 0;
         D::result_type skew = 0;
         D::result_type kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             D::result_type dbl = (u[i] - mean);
             D::result_type d2 = sqr(dbl);
@@ -409,7 +410,7 @@ int main()
         D::result_type var = 0;
         D::result_type skew = 0;
         D::result_type kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             D::result_type dbl = (u[i] - mean);
             D::result_type d2 = sqr(dbl);
@@ -449,7 +450,7 @@ int main()
         D::result_type var = 0;
         D::result_type skew = 0;
         D::result_type kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             D::result_type dbl = (u[i] - mean);
             D::result_type d2 = sqr(dbl);
diff --git a/test/std/numerics/rand/rand.dis/rand.dist.uni/rand.dist.uni.real/eval_param.pass.cpp b/test/std/numerics/rand/rand.dis/rand.dist.uni/rand.dist.uni.real/eval_param.pass.cpp
index d351f0cae..8a0622063 100644
--- a/test/std/numerics/rand/rand.dis/rand.dist.uni/rand.dist.uni.real/eval_param.pass.cpp
+++ b/test/std/numerics/rand/rand.dis/rand.dist.uni/rand.dist.uni.real/eval_param.pass.cpp
@@ -18,6 +18,7 @@
 #include <cassert>
 #include <vector>
 #include <numeric>
+#include <cstddef>
 
 template <class T>
 inline
@@ -49,7 +50,7 @@ int main()
         D::result_type var = 0;
         D::result_type skew = 0;
         D::result_type kurtosis = 0;
-        for (int i = 0; i < u.size(); ++i)
+        for (std::size_t i = 0; i < u.size(); ++i)
         {
             D::result_type dbl = (u[i] - mean);
             D::result_type d2 = sqr(dbl);