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