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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<wchar_t>
     13 
     14 // static size_t length(const char_type* s);
     15 
     16 #include <string>
     17 #include <cassert>
     18 
     19 int main()
     20 {
     21     assert(std::char_traits<wchar_t>::length(L"") == 0);
     22     assert(std::char_traits<wchar_t>::length(L"a") == 1);
     23     assert(std::char_traits<wchar_t>::length(L"aa") == 2);
     24     assert(std::char_traits<wchar_t>::length(L"aaa") == 3);
     25     assert(std::char_traits<wchar_t>::length(L"aaaa") == 4);
     26 }
     27