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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 char_type* copy(char_type* s1, const char_type* s2, size_t n);
     15 
     16 #include <string>
     17 #include <cassert>
     18 
     19 int main()
     20 {
     21 #ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
     22     char32_t s1[] = {1, 2, 3};
     23     char32_t s2[3] = {0};
     24     assert(std::char_traits<char32_t>::copy(s2, s1, 3) == s2);
     25     assert(s2[0] == char32_t(1));
     26     assert(s2[1] == char32_t(2));
     27     assert(s2[2] == char32_t(3));
     28 #endif  // _LIBCPP_HAS_NO_UNICODE_CHARS
     29 }
     30