Mercurial > hg > CbC > CbC_gcc
comparison libiberty/xstrndup.c @ 0:a06113de4d67
first commit
author | kent <kent@cr.ie.u-ryukyu.ac.jp> |
---|---|
date | Fri, 17 Jul 2009 14:47:48 +0900 |
parents | |
children | 04ced10e8804 |
comparison
equal
deleted
inserted
replaced
-1:000000000000 | 0:a06113de4d67 |
---|---|
1 /* Implement the xstrndup function. | |
2 Copyright (C) 2005 Free Software Foundation, Inc. | |
3 Written by Kaveh R. Ghazi <ghazi@caip.rutgers.edu>. | |
4 | |
5 This file is part of the libiberty library. | |
6 Libiberty is free software; you can redistribute it and/or | |
7 modify it under the terms of the GNU Library General Public | |
8 License as published by the Free Software Foundation; either | |
9 version 2 of the License, or (at your option) any later version. | |
10 | |
11 Libiberty 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 GNU | |
14 Library General Public License for more details. | |
15 | |
16 You should have received a copy of the GNU Library General Public | |
17 License along with libiberty; see the file COPYING.LIB. If | |
18 not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor, | |
19 Boston, MA 02110-1301, USA. */ | |
20 | |
21 /* | |
22 | |
23 @deftypefn Replacement char* xstrndup (const char *@var{s}, size_t @var{n}) | |
24 | |
25 Returns a pointer to a copy of @var{s} with at most @var{n} characters | |
26 without fail, using @code{xmalloc} to obtain memory. The result is | |
27 always NUL terminated. | |
28 | |
29 @end deftypefn | |
30 | |
31 */ | |
32 | |
33 #ifdef HAVE_CONFIG_H | |
34 #include "config.h" | |
35 #endif | |
36 #include <sys/types.h> | |
37 #ifdef HAVE_STRING_H | |
38 #include <string.h> | |
39 #else | |
40 # ifdef HAVE_STRINGS_H | |
41 # include <strings.h> | |
42 # endif | |
43 #endif | |
44 #include "ansidecl.h" | |
45 #include "libiberty.h" | |
46 | |
47 char * | |
48 xstrndup (const char *s, size_t n) | |
49 { | |
50 char *result; | |
51 size_t len = strlen (s); | |
52 | |
53 if (n < len) | |
54 len = n; | |
55 | |
56 result = XNEWVEC (char, len + 1); | |
57 | |
58 result[len] = '\0'; | |
59 return (char *) memcpy (result, s, len); | |
60 } |