51 lines
1.1 KiB
C++
51 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: !stdlib=libc++ && (c++03 || c++11 || c++14)
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// <string_view>
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// constexpr basic_string_view () noexcept;
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#include <string_view>
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#include <cassert>
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#include "test_macros.h"
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template <typename T>
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void test() {
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#if TEST_STD_VER > 11
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{
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ASSERT_NOEXCEPT(T());
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constexpr T sv1;
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static_assert(sv1.size() == 0, "");
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static_assert(sv1.empty(), "");
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}
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#endif
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{
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T sv1;
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assert(sv1.size() == 0);
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assert(sv1.empty());
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}
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}
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int main(int, char**) {
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test<std::string_view>();
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test<std::u16string_view>();
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#ifndef TEST_HAS_NO_CHAR8_T
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test<std::u8string_view>();
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#endif
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test<std::u32string_view>();
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#ifndef TEST_HAS_NO_WIDE_CHARACTERS
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test<std::wstring_view>();
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#endif
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return 0;
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}
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