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      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
    124