//===----------------------------------------------------------------------===// // // 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_view> // constexpr basic_string_view () noexcept; #include <string_view> #include <cassert> #include "test_macros.h" template<typename T> void test () { #if TEST_STD_VER > 11 { ASSERT_NOEXCEPT(T()); constexpr T sv1; static_assert ( sv1.size() == 0, "" ); static_assert ( sv1.empty(), ""); } #endif { T sv1; assert ( sv1.size() == 0 ); assert ( sv1.empty()); } } int main(int, char**) { test<std::string_view> (); test<std::u16string_view> (); #if defined(__cpp_lib_char8_t) && __cpp_lib_char8_t >= 201811L test<std::u8string_view> (); #endif test<std::u32string_view> (); test<std::wstring_view> (); return 0; }