2 * MSVCRT string functions
4 * Copyright 1996,1998 Marcus Meissner
5 * Copyright 1996 Jukka Iivonen
6 * Copyright 1997,2000 Uwe Bonnes
7 * Copyright 2000 Jon Griffiths
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 #include "msvcrt/stdlib.h"
26 #include "msvcrt/string.h"
28 #include "wine/debug.h"
30 WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
32 /* INTERNAL: MSVCRT_malloc() based strndup */
33 char* msvcrt_strndup(const char* buf, unsigned int size)
36 unsigned int len = strlen(buf), max_len;
38 max_len = size <= len? size : len + 1;
40 ret = MSVCRT_malloc(max_len);
43 memcpy(ret,buf,max_len);
49 /*********************************************************************
52 char* _strdec(const char* str1, const char* str2)
54 /* Hmm. While the docs suggest that the following should work... */
55 /* return (str2<=str1?0:str2-1); */
56 /* ...Version 2.50.4170 (NT) from win98 constantly decrements! */
57 str1 = str1; /* remove warning */
58 return (char *)str2-1;
61 /*********************************************************************
65 char* _strdup(const char* str)
67 char * ret = MSVCRT_malloc(strlen(str)+1);
68 if (ret) strcpy( ret, str );
72 /*********************************************************************
75 char* _strinc(const char* str)
80 /*********************************************************************
81 * _strnextc (MSVCRT.@)
83 unsigned int _strnextc(const char* str)
85 return (unsigned int)*str;
88 /*********************************************************************
91 * Return a pointer to the 'n'th character in a string
93 char* _strninc(char* str, unsigned int n)
98 /*********************************************************************
101 char* _strnset(char* str, int value, unsigned int len)
104 while (*str && len--)
109 /*********************************************************************
112 char* _strrev(char* str)
118 for (p1 = str, p2 = str + strlen(str) - 1; p2 > p1; ++p1, --p2)
128 /*********************************************************************
131 char* _strset(char* str, int value)
140 /*********************************************************************
141 * _strncnt (MSVCRT.@)
143 unsigned int _strncnt(char* str, unsigned int max)
145 unsigned int len = strlen(str);
146 return (len > max? max : len);
149 /*********************************************************************
150 * _strspnp (MSVCRT.@)
152 char* _strspnp(char* str1, char* str2)
154 str1 += strspn(str1,str2);
155 return *str1? str1 : 0;
158 /*********************************************************************
161 void _swab(char* src, char* dst, int len)
165 len = (unsigned)len >> 1;