libstdc++-v3/include/c_global/cstring

   1 // -*- C++ -*- forwarding header.
   2
   3 // Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
   4 // 2006, 2007, 2008, 2009
   5 // Free Software Foundation, Inc.
   6 //
   7 // This file is part of the GNU ISO C++ Library.  This library is free
   8 // software; you can redistribute it and/or modify it under the
   9 // terms of the GNU General Public License as published by the
  10 // Free Software Foundation; either version 3, or (at your option)
  11 // any later version.
  12
  13 // This library is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 // GNU General Public License for more details.
  17
  18 // Under Section 7 of GPL version 3, you are granted additional
  19 // permissions described in the GCC Runtime Library Exception, version
  20 // 3.1, as published by the Free Software Foundation.
  21
  22 // You should have received a copy of the GNU General Public License and
  23 // a copy of the GCC Runtime Library Exception along with this program;
  24 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  25 // <http://www.gnu.org/licenses/>.
  26
  27 /** @file cstring
  28  *  This is a Standard C++ Library file.  You should @c \#include this file
  29  *  in your programs, rather than any of the "*.h" implementation files.
  30  *
  31  *  This is the C++ version of the Standard C Library header @c string.h,
  32  *  and its contents are (mostly) the same as that header, but are all
  33  *  contained in the namespace @c std (except for names which are defined
  34  *  as macros in C).
  35  */
  36
  37 //
  38 // ISO C++ 14882: 20.4.6  C library
  39 //
  40
  41 #pragma GCC system_header
  42
  43 #include <bits/c++config.h>
  44 #include <cstddef>
  45 #include <string.h>
  46
  47 #ifndef _GLIBCXX_CSTRING
  48 #define _GLIBCXX_CSTRING 1
  49
  50 // Get rid of those macros defined in <string.h> in lieu of real functions.
  51 #undef memchr
  52 #undef memcmp
  53 #undef memcpy
  54 #undef memmove
  55 #undef memset
  56 #undef strcat
  57 #undef strchr
  58 #undef strcmp
  59 #undef strcoll
  60 #undef strcpy
  61 #undef strcspn
  62 #undef strerror
  63 #undef strlen
  64 #undef strncat
  65 #undef strncmp
  66 #undef strncpy
  67 #undef strpbrk
  68 #undef strrchr
  69 #undef strspn
  70 #undef strstr
  71 #undef strtok
  72 #undef strxfrm
  73
  74 _GLIBCXX_BEGIN_NAMESPACE(std)
  75
  76   using ::memchr;
  77   using ::memcmp;
  78   using ::memcpy;
  79   using ::memmove;
  80   using ::memset;
  81   using ::strcat;
  82   using ::strcmp;
  83   using ::strcoll;
  84   using ::strcpy;
  85   using ::strcspn;
  86   using ::strerror;
  87   using ::strlen;
  88   using ::strncat;
  89   using ::strncmp;
  90   using ::strncpy;
  91   using ::strspn;
  92   using ::strtok;
  93   using ::strxfrm;
  94   using ::strchr;
  95   using ::strpbrk;
  96   using ::strrchr;
  97   using ::strstr;
  98
  99 #ifndef __CORRECT_ISO_CPP_STRING_H_PROTO
 100   inline void*
 101   memchr(void* __p, int __c, size_t __n)
 102   { return memchr(const_cast<const void*>(__p), __c, __n); }
 103
 104   inline char*
 105   strchr(char* __s1, int __n)
 106   { return __builtin_strchr(const_cast<const char*>(__s1), __n); }
 107
 108   inline char*
 109   strpbrk(char* __s1, const char* __s2)
 110   { return __builtin_strpbrk(const_cast<const char*>(__s1), __s2); }
 111
 112   inline char*
 113   strrchr(char* __s1, int __n)
 114   { return __builtin_strrchr(const_cast<const char*>(__s1), __n); }
 115
 116   inline char*
 117   strstr(char* __s1, const char* __s2)
 118   { return __builtin_strstr(const_cast<const char*>(__s1), __s2); }
 119 #endif
 120
 121 _GLIBCXX_END_NAMESPACE
 122
 123 #endif