std_cstring.h revision 169691 
1// -*- C++ -*- forwarding header.
2
3// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
4// Free Software Foundation, Inc.
5//
6// This file is part of the GNU ISO C++ Library.  This library is free
7// software; you can redistribute it and/or modify it under the
8// terms of the GNU General Public License as published by the
9// Free Software Foundation; either version 2, or (at your option)
10// any later version.
11
12// This library is distributed in the hope that it will be useful,
13// but WITHOUT ANY WARRANTY; without even the implied warranty of
14// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15// GNU General Public License for more details.
16
17// You should have received a copy of the GNU General Public License along
18// with this library; see the file COPYING.  If not, write to the Free
19// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
20// USA.
21
22// As a special exception, you may use this file as part of a free software
23// library without restriction.  Specifically, if other files instantiate
24// templates or use macros or inline functions from this file, or you compile
25// this file and link it with other files to produce an executable, this
26// file does not by itself cause the resulting executable to be covered by
27// the GNU General Public License.  This exception does not however
28// invalidate any other reasons why the executable file might be covered by
29// the GNU General Public License.
30
31/** @file cstring
32 *  This is a Standard C++ Library file.  You should @c #include this file
33 *  in your programs, rather than any of the "*.h" implementation files.
34 *
35 *  This is the C++ version of the Standard C Library header @c string.h,
36 *  and its contents are (mostly) the same as that header, but are all
37 *  contained in the namespace @c std (except for names which are defined
38 *  as macros in C).
39 */
40
41//
42// ISO C++ 14882: 20.4.6  C library
43//
44
45#ifndef _GLIBCXX_CSTRING
46#define _GLIBCXX_CSTRING 1
47
48#pragma GCC system_header
49
50#include <bits/c++config.h>
51#include <cstddef>
52#include <string.h>
53
54// Get rid of those macros defined in <string.h> in lieu of real functions.
55#undef memcpy
56#undef memmove
57#undef strcpy
58#undef strncpy
59#undef strcat
60#undef strncat
61#undef memcmp
62#undef strcmp
63#undef strcoll
64#undef strncmp
65#undef strxfrm
66#undef memchr
67#undef strchr
68#undef strcspn
69#undef strpbrk
70#undef strrchr
71#undef strspn
72#undef strstr
73#undef strtok
74#undef memset
75#undef strerror
76#undef strlen
77
78_GLIBCXX_BEGIN_NAMESPACE(std)
79
80  using ::memcpy;
81  using ::memmove;
82  using ::strcpy;
83  using ::strncpy;
84  using ::strcat;
85  using ::strncat;
86  using ::memcmp;
87  using ::strcmp;
88  using ::strcoll;
89  using ::strncmp;
90  using ::strxfrm;
91  using ::strcspn;
92  using ::strspn;
93  using ::strtok;
94  using ::memset;
95  using ::strerror;
96  using ::strlen;
97
98  using ::memchr;
99
100  inline void*
101  memchr(void* __p, int __c, size_t __n)
102  { return memchr(const_cast<const void*>(__p), __c, __n); }
103
104  using ::strchr;
105
106  inline char*
107  strchr(char* __s1, int __n)
108  { return __builtin_strchr(const_cast<const char*>(__s1), __n); }
109
110  using ::strpbrk;
111
112  inline char*
113  strpbrk(char* __s1, const char* __s2)
114  { return __builtin_strpbrk(const_cast<const char*>(__s1), __s2); }
115
116  using ::strrchr;
117
118  inline char*
119  strrchr(char* __s1, int __n)
120  { return __builtin_strrchr(const_cast<const char*>(__s1), __n); }
121
122  using ::strstr;
123
124  inline char*
125  strstr(char* __s1, const char* __s2)
126  { return __builtin_strstr(const_cast<const char*>(__s1), __s2); }
127
128_GLIBCXX_END_NAMESPACE
129
130#endif
131