//===----------------------------------------------------------------------===//
//
// 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<char16_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
char16_t c = u'\0';
assert(!std::char_traits<char16_t>::lt(u'a', u'a'));
assert( std::char_traits<char16_t>::lt(u'A', u'a'));
#endif
#endif // _LIBCPP_HAS_NO_UNICODE_CHARS
}