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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// <string>
// allocator_type get_allocator() const; // constexpr since C++20
#include <string>
#include <cassert>
#include "test_macros.h"
#include "test_allocator.h"
#include "min_allocator.h"
template <class S>
TEST_CONSTEXPR_CXX20 void test(const S& s, const typename S::allocator_type& a) {
assert(s.get_allocator() == a);
}
template <class Alloc>
TEST_CONSTEXPR_CXX20 void test_string(const Alloc& a) {
using S = std::basic_string<char, std::char_traits<char>, Alloc>;
test(S(""), Alloc());
test(S("abcde", Alloc(a)), Alloc(a));
test(S("abcdefghij", Alloc(a)), Alloc(a));
test(S("abcdefghijklmnopqrst", Alloc(a)), Alloc(a));
}
TEST_CONSTEXPR_CXX20 bool test() {
test_string(std::allocator<char>());
test_string(test_allocator<char>());
test_string(test_allocator<char>(1));
test_string(test_allocator<char>(2));
test_string(test_allocator<char>(3));
#if TEST_STD_VER >= 11
test_string(min_allocator<char>());
#endif
return true;
}
int main(int, char**) {
test();
#if TEST_STD_VER > 17
static_assert(test());
#endif
return 0;
}
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