libstdc++-v3/include/c_std/std_cstring.h

   1 // -*- C++ -*- forwarding header.
   2
   3 // Copyright (C) 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 2, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING.  If not, write to the Free
  18 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  19 // USA.
  20
  21 // As a special exception, you may use this file as part of a free software
  22 // library without restriction.  Specifically, if other files instantiate
  23 // templates or use macros or inline functions from this file, or you compile
  24 // this file and link it with other files to produce an executable, this
  25 // file does not by itself cause the resulting executable to be covered by
  26 // the GNU General Public License.  This exception does not however
  27 // invalidate any other reasons why the executable file might be covered by
  28 // the GNU General Public License.
  29
  30 //
  31 // ISO C++ 14882: 20.4.6  C library
  32 //
  33
  34 /** @file cstring
  35  *  This is a Standard C++ Library file.  You should @c #include this file
  36  *  in your programs, rather than any of the "*.h" implementation files.
  37  *
  38  *  This is the C++ version of the Standard C Library header @c string.h,
  39  *  and its contents are (mostly) the same as that header, but are all
  40  *  contained in the namespace @c std.
  41  */
  42
  43 #ifndef _CPP_CSTRING
  44 #define _CPP_CSTRING 1
  45
  46 #include <cstddef>
  47
  48 #pragma GCC system_header
  49 #include <string.h>
  50
  51 // Get rid of those macros defined in <string.h> in lieu of real functions.
  52 #undef memcpy
  53 #undef memmove
  54 #undef strcpy
  55 #undef strncpy
  56 #undef strcat
  57 #undef strncat
  58 #undef memcmp
  59 #undef strcmp
  60 #undef strcoll
  61 #undef strncmp
  62 #undef strxfrm
  63 #undef memchr
  64 #undef strchr
  65 #undef strcspn
  66 #undef strpbrk
  67 #undef strrchr
  68 #undef strspn
  69 #undef strstr
  70 #undef strtok
  71 #undef memset
  72 #undef strerror
  73 #undef strlen
  74
  75 namespace std
  76 {
  77   using ::memcpy;
  78   using ::memmove;
  79   using ::strcpy;
  80   using ::strncpy;
  81   using ::strcat;
  82   using ::strncat;
  83   using ::memcmp;
  84   using ::strcmp;
  85   using ::strcoll;
  86   using ::strncmp;
  87   using ::strxfrm;
  88   using ::strcspn;
  89   using ::strspn;
  90   using ::strtok;
  91   using ::memset;
  92   using ::strerror;
  93   using ::strlen;
  94
  95   using ::memchr;
  96
  97   inline void*
  98   memchr(void* __p, int __c, size_t __n)
  99   { return memchr(const_cast<const void*>(__p), __c, __n); }
 100
 101   using ::strchr;
 102
 103   inline char*
 104   strchr(char* __s1, int __n)
 105   { return __builtin_strchr(const_cast<const char*>(__s1), __n); }
 106
 107   using ::strpbrk;
 108
 109   inline char*
 110   strpbrk(char* __s1, const char* __s2)
 111   { return __builtin_strpbrk(const_cast<const char*>(__s1), __s2); }
 112
 113   using ::strrchr;
 114
 115   inline char*
 116   strrchr(char* __s1, int __n)
 117   { return __builtin_strrchr(const_cast<const char*>(__s1), __n); }
 118
 119   using ::strstr;
 120
 121   inline char*
 122   strstr(char* __s1, const char* __s2)
 123   { return __builtin_strstr(const_cast<const char*>(__s1), __s2); }
 124 }
 125
 126 #endif