30 lines
		
	
	
		
			772 B
		
	
	
	
		
			C++
		
	
	
	
			
		
		
	
	
			30 lines
		
	
	
		
			772 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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| 
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| // <string>
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| 
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| // template<> struct char_traits<char32_t>
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| 
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| // static constexpr bool lt(char_type c1, char_type c2);
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| 
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| #include <string>
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| #include <cassert>
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| 
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| #include "test_macros.h"
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| 
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| int main()
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| {
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| #ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
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| #if TEST_STD_VER >= 11
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|     assert(!std::char_traits<char32_t>::lt(U'a', U'a'));
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|     assert( std::char_traits<char32_t>::lt(U'A', U'a'));
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| #endif
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| #endif  // _LIBCPP_HAS_NO_UNICODE_CHARS
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| }
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