41 lines
1.1 KiB
C++
41 lines
1.1 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++03
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// <string>
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// basic_string()
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// noexcept(is_nothrow_default_constructible<allocator_type>::value);
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// This tests a conforming extension
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#include <string>
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#include <cassert>
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#include "test_macros.h"
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#include "test_allocator.h"
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int main(int, char**)
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{
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{
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typedef std::string C;
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static_assert(std::is_nothrow_default_constructible<C>::value, "");
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}
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{
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typedef std::basic_string<char, std::char_traits<char>, test_allocator<char>> C;
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static_assert(std::is_nothrow_default_constructible<C>::value, "");
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}
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{
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typedef std::basic_string<char, std::char_traits<char>, limited_allocator<char, 10>> C;
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static_assert(!std::is_nothrow_default_constructible<C>::value, "");
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}
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return 0;
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}
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