llvm/libcxx
1
0
Fork 0
mirror of https://github.com/llvm-mirror/libcxx.git synced 2025-10-23 10:07:41 +08:00
Code Issues Packages Projects Releases Wiki Activity

Another batch of P0202 constepr algirithms. remove/remove_if/remove_copy/remove_copy_if/reverse_copy, and tests (commented out) for rotate_copy, because that depends on std::copy

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@323152 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Marshall Clow
2018-01-22 21:43:04 +00:00
parent a15161a030
commit 63be4189d8
7 changed files with 127 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
test/std/algorithms/alg.modifying.operations/alg.reverse/reverse_copy.pass.cpp
View File

@@ -10,14 +10,28 @@
// <algorithm>
// template<BidirectionalIterator InIter, OutputIterator<auto, InIter::reference> OutIter>
// OutIter
// constexpr OutIter // constexpr after C++17
// reverse_copy(InIter first, InIter last, OutIter result);
#include <algorithm>
#include <cassert>
#include "test_macros.h"
#include "test_iterators.h"
#if TEST_STD_VER > 17
TEST_CONSTEXPR bool test_constexpr() {
int ia[] = {1, 3, 5, 2, 5, 6};
int ib[std::size(ia)] = {0};
auto it = std::reverse_copy(std::begin(ia), std::end(ia), std::begin(ib));
return std::distance(std::begin(ib), it) == std::size(ia)
&& std::equal (std::begin(ia), std::end(ia), std::rbegin(ib))
;
}
#endif
template <class InIter, class OutIter>
void
test()
@@ -78,4 +92,8 @@ int main()
test<const int*, bidirectional_iterator<int*> >();
test<const int*, random_access_iterator<int*> >();
test<const int*, int*>();
#if TEST_STD_VER > 17
static_assert(test_constexpr());
#endif
}