30 lines
		
	
	
		
			823 B
		
	
	
	
		
			C++
		
	
	
	
			
		
		
	
	
			30 lines
		
	
	
		
			823 B
		
	
	
	
		
			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: 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 constexpr bool lt(char_type c1, char_type c2);
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#include <string>
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#include <cassert>
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#include "test_macros.h"
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int main(int, char**)
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{
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#if defined(__cpp_lib_char8_t) && __cpp_lib_char8_t >= 201811L
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    assert(!std::char_traits<char8_t>::lt(u8'a', u8'a'));
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    assert( std::char_traits<char8_t>::lt(u8'A', u8'a'));
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#endif
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  return 0;
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}
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