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Add tests to check that swap(std::function, std::function) is noexcept. This is LWG#2062, but we already do this. No changes to the library, just adding tests.

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@283780 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Marshall Clow
2016-10-10 16:47:48 +00:00
parent f7b867b342
commit e9115a1b41
1 changed files with 14 additions and 1 deletions
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15
test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.alg/swap.pass.cpp
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@@ -12,13 +12,14 @@
// class function<R(ArgTypes...)>
// template <MoveConstructible R, MoveConstructible ... ArgTypes>
// void swap(function<R(ArgTypes...)>&, function<R(ArgTypes...)>&);
// void swap(function<R(ArgTypes...)>&, function<R(ArgTypes...)>&) noexcept;
#include <functional>
#include <cstdlib>
#include <cassert>
#include "test_macros.h"
#include "count_new.hpp"
class A
@@ -63,6 +64,9 @@ int main()
{
std::function<int(int)> f1 = A(1);
std::function<int(int)> f2 = A(2);
#if TEST_STD_VER >= 11
static_assert(noexcept(swap(f1, f2)), "" );
#endif
assert(A::count == 2);
assert(globalMemCounter.checkOutstandingNewEq(2));
assert(f1.target<A>()->id() == 1);
@@ -78,6 +82,9 @@ int main()
{
std::function<int(int)> f1 = A(1);
std::function<int(int)> f2 = g;
#if TEST_STD_VER >= 11
static_assert(noexcept(swap(f1, f2)), "" );
#endif
assert(A::count == 1);
assert(globalMemCounter.checkOutstandingNewEq(1));
assert(f1.target<A>()->id() == 1);
@@ -93,6 +100,9 @@ int main()
{
std::function<int(int)> f1 = g;
std::function<int(int)> f2 = A(1);
#if TEST_STD_VER >= 11
static_assert(noexcept(swap(f1, f2)), "" );
#endif
assert(A::count == 1);
assert(globalMemCounter.checkOutstandingNewEq(1));
assert(*f1.target<int(*)(int)>() == g);
@@ -108,6 +118,9 @@ int main()
{
std::function<int(int)> f1 = g;
std::function<int(int)> f2 = h;
#if TEST_STD_VER >= 11
static_assert(noexcept(swap(f1, f2)), "" );
#endif
assert(A::count == 0);
assert(globalMemCounter.checkOutstandingNewEq(0));
assert(*f1.target<int(*)(int)>() == g);