cxx/test/containers/sequences/vector/vector.cons/default_noexcept.pass.cpp

51 lines
1.3 KiB
C++

//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <vector>
// vector()
// noexcept(is_nothrow_default_constructible<allocator_type>::value);
// This tests a conforming extension
#include <vector>
#include <cassert>
#include "../../../MoveOnly.h"
#include "../../../test_allocator.h"
template <class T>
struct some_alloc
{
typedef T value_type;
some_alloc(const some_alloc&);
};
int main()
{
#if __has_feature(cxx_noexcept)
{
typedef std::vector<MoveOnly> C;
static_assert(std::is_nothrow_default_constructible<C>::value, "");
}
{
typedef std::vector<MoveOnly, test_allocator<MoveOnly>> C;
static_assert(std::is_nothrow_default_constructible<C>::value, "");
}
{
typedef std::vector<MoveOnly, other_allocator<MoveOnly>> C;
static_assert(!std::is_nothrow_default_constructible<C>::value, "");
}
{
typedef std::vector<MoveOnly, some_alloc<MoveOnly>> C;
static_assert(!std::is_nothrow_default_constructible<C>::value, "");
}
#endif
}