boost_no_ctype_functions.ipp

来自「C++的一个好库。。。现在很流行」· IPP 代码 · 共 45 行

//  (C) Copyright John Maddock 2001. 
//  Use, modification and distribution are subject to the 
//  Boost Software License, Version 1.0. (See accompanying file 
//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

//  See http://www.boost.org/libs/config for most recent version.

//  MACRO:         BOOST_NO_CTYPE_FUNCTIONS
//  TITLE:         functions in <ctype.h>
//  DESCRIPTION:   The Platform does not provide functions for the character-
//                 classifying operations in <ctype.h>. Some platforms provide
//                 macros and don't provide functions. Under C++ it's an error
//                 to provide the macros at all, but that's a separate issue.

#include <ctype.h>

namespace boost_no_ctype_functions {

extern "C" {
  typedef int (* character_classify_function)(int);
}

void pass_function(character_classify_function)
{
}

int test()
{
   pass_function(isalpha);
   pass_function(isalnum);
   pass_function(iscntrl);
   pass_function(isdigit);
   pass_function(isgraph);
   pass_function(islower);
   pass_function(isprint);
   pass_function(ispunct);
   pass_function(isspace);
   pass_function(isupper);
   pass_function(isxdigit);
   return 0;
}

}