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33 lines
1006 B
C++
33 lines
1006 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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// UNSUPPORTED: c++98, c++03, c++11, c++14, c++17
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// <string>
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// template<> struct char_traits<char8_t>
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// static char_type* copy(char_type* s1, const char_type* s2, size_t n);
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#include <string>
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#include <cassert>
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int main()
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{
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#if defined(__cpp_lib_char8_t) && __cpp_lib_char8_t >= 201811L
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char8_t s1[] = {1, 2, 3};
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char8_t s2[3] = {0};
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assert(std::char_traits<char8_t>::copy(s2, s1, 3) == s2);
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assert(s2[0] == char8_t(1));
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assert(s2[1] == char8_t(2));
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assert(s2[2] == char8_t(3));
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assert(std::char_traits<char8_t>::copy(NULL, s1, 0) == NULL);
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assert(std::char_traits<char8_t>::copy(s1, NULL, 0) == s1);
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#endif
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}
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