2 * COPYRIGHT: See COPYING in the top level directory
3 * PROJECT: ReactOS kernel
4 * FILE: ntoskrnl/rtl/string.c
5 * PURPOSE: Ascii string functions
6 * PROGRAMMER: Eric Kohl (ekohl@abo.rhein-zeitung.de)
8 * 1999/07/29 ekohl Created
11 /* INCLUDES *****************************************************************/
16 /* FUNCTIONS *****************************************************************/
18 int _stricmp(const char *s1, const char *s2)
20 while (toupper(*s1) == toupper(*s2))
27 return toupper(*(unsigned const char *)s1) - toupper(*(unsigned const char *)(s2));
31 char * _strlwr(char *x)
44 int _strnicmp(const char *s1, const char *s2, size_t n)
50 if (toupper(*s1) != toupper(*s2++))
51 return toupper(*(unsigned const char *)s1) - toupper(*(unsigned const char *)--s2);
59 char* _strnset(char* szToFill, int szFill, size_t sizeMaxFill)
63 while (*szToFill != 0 && i < (int) sizeMaxFill)
74 char * _strrev(char *s)
95 char* _strset(char* szToFill, int szFill)
98 while (*szToFill != 0)
108 char *_strupr(char *x)
121 char *strcat(char *s, const char *append)
126 while ((*s++ = *append++));
131 char *strchr(const char *s, int c)
149 int strcmp(const char *s1, const char *s2)
159 return *(unsigned const char *)s1 - *(unsigned const char *)(s2);
163 char* strcpy(char *to, const char *from)
167 for (; (*to = *from); ++from, ++to);
173 size_t strlen(const char *str)
179 for (s = str; *s; ++s);
185 char *strncat(char *dst, const char *src, size_t n)
196 if ((*d = *s++) == 0)
208 int strncmp(const char *s1, const char *s2, size_t n)
215 return *(unsigned const char *)s1 - *(unsigned const char *)--s2;
225 char *strncpy(char *dst, const char *src, size_t n)
234 if ((*d++ = *s++) == 0)
252 char *strrchr(const char *s, int c)
255 const char *sp=(char *)0;
271 size_t strspn(const char *s1, const char *s2)
273 const char *p = s1, *spanp;
278 for (spanp = s2; (sc = *spanp++) != 0;)
286 char *strstr(const char *s, const char *find)
291 if ((c = *find++) != 0)
298 if ((sc = *s++) == 0)
303 while (strncmp(s, find, len) != 0);