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      1 //===----------------------------------------------------------------------===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is dual licensed under the MIT and the University of Illinois Open
      6 // Source Licenses. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 
     10 // <string>
     11 
     12 // template<> struct char_traits<char32_t>
     13 
     14 // static constexpr bool eq(char_type c1, char_type c2);
     15 
     16 #include <string>
     17 #include <cassert>
     18 
     19 int main()
     20 {
     21 #ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
     22     char32_t c = U'\0';
     23     assert(std::char_traits<char32_t>::eq(U'a', U'a'));
     24     assert(!std::char_traits<char32_t>::eq(U'a', U'A'));
     25 #endif  // _LIBCPP_HAS_NO_UNICODE_CHARS
     26 }
     27