41 lines
909 B
C++
41 lines
909 B
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>
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// template<> struct char_traits<char>
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// static constexpr void assign(char_type& c1, const char_type& c2); // constexpr in C++17
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// constexpr in C++17
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#include <string>
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#include <cassert>
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#include "test_macros.h"
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#if TEST_STD_VER > 14
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constexpr bool test_constexpr()
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{
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char c = '1';
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std::char_traits<char>::assign(c, 'a');
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return c == 'a';
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}
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#endif
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int main()
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{
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char c = '\0';
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std::char_traits<char>::assign(c, 'a');
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assert(c == 'a');
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#if TEST_STD_VER > 14
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static_assert(test_constexpr(), "" );
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#endif
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}
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