libstdc++
cstring
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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