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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <string>
// template<> struct char_traits<char32_t>
// static constexpr bool lt(char_type c1, char_type c2);
#include <string>
#include <cassert>
int main()
{
#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
#if __cplusplus >= 201103L
char32_t c = U'\0';
assert(!std::char_traits<char32_t>::lt(U'a', U'a'));
assert( std::char_traits<char32_t>::lt(U'A', U'a'));
#endif
#endif // _LIBCPP_HAS_NO_UNICODE_CHARS
}
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