swap_noexcept.pass.cpp [plain text]
#include <string>
#include <cassert>
#include "../../test_allocator.h"
template <class T>
struct some_alloc
{
typedef T value_type;
some_alloc() {}
some_alloc(const some_alloc&);
void deallocate(void*, unsigned) {}
typedef std::true_type propagate_on_container_swap;
};
int main()
{
#if __has_feature(cxx_noexcept)
{
typedef std::string C;
C c1, c2;
static_assert(noexcept(swap(c1, c2)), "");
}
{
typedef std::basic_string<char, std::char_traits<char>, test_allocator<char>> C;
C c1, c2;
static_assert(noexcept(swap(c1, c2)), "");
}
{
typedef std::basic_string<char, std::char_traits<char>, some_alloc<char>> C;
C c1, c2;
static_assert(!noexcept(swap(c1, c2)), "");
}
#endif
}