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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 // <locale>
     11 
     12 // template <class charT> charT tolower(charT c, const locale& loc);
     13 
     14 #include <locale>
     15 #include <cassert>
     16 
     17 int main()
     18 {
     19     std::locale l;
     20     assert(std::tolower(' ', l) == ' ');
     21     assert(std::tolower('<', l) == '<');
     22     assert(std::tolower('\x8', l) == '\x8');
     23     assert(std::tolower('A', l) == 'a');
     24     assert(std::tolower('a', l) == 'a');
     25     assert(std::tolower('z', l) == 'z');
     26     assert(std::tolower('3', l) == '3');
     27     assert(std::tolower('.', l) == '.');
     28     assert(std::tolower('f', l) == 'f');
     29     assert(std::tolower('9', l) == '9');
     30     assert(std::tolower('+', l) == '+');
     31 }
     32