forked from OSchip/llvm-project
47 lines
1.0 KiB
C++
47 lines
1.0 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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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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template<typename T>
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void test () {
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#if _LIBCPP_STD_VER > 11
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{
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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 () {
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typedef std::string_view string_view;
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typedef std::u16string_view u16string_view;
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typedef std::u32string_view u32string_view;
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typedef std::wstring_view wstring_view;
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test<string_view> ();
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test<u16string_view> ();
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test<u32string_view> ();
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test<wstring_view> ();
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}
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