2 * COPYRIGHT: See COPYING in the top level directory
3 * PROJECT: ReactOS kernel
4 * FILE: ntoskrnl/rtl/wstring.c
5 * PURPOSE: Wide string functions
6 * PROGRAMMER: David Welch (welch@cwcom.net)
9 * 1998/12/04 RJJ Cleaned up and added i386 def checks.
10 * 1999/07/29 ekohl Added missing functions.
13 /* INCLUDES *****************************************************************/
15 #include <ddk/ntddk.h>
18 #include <internal/debug.h>
20 /* FUNCTIONS *****************************************************************/
22 int _wcsicmp (const wchar_t* cs, const wchar_t* ct)
24 while (*cs != '\0' && *ct != '\0' && towupper(*cs) == towupper(*ct))
32 wchar_t *_wcslwr (wchar_t *x)
45 int _wcsnicmp (const wchar_t * cs,const wchar_t * ct,size_t count)
50 if (towupper(*cs) != towupper(*ct++))
51 return towupper(*cs) - towupper(*--ct);
54 } while (--count != 0);
59 wchar_t *_wcsnset (wchar_t* wsToFill, wchar_t wcFill, size_t sizeMaxFill)
61 wchar_t *t = wsToFill;
63 while( *wsToFill != 0 && i < sizeMaxFill)
73 wchar_t *_wcsrev(wchar_t *s)
92 wchar_t *_wcsupr(wchar_t *x)
105 wchar_t * wcscat(wchar_t *dest, const wchar_t *src)
109 for (j = 0; dest[j] != 0; j++)
111 for (i = 0; src[i] != 0; i++)
113 dest[j + i] = src[i];
120 wchar_t * wcschr(const wchar_t *str, wchar_t ch)
122 while ((*str) != ((wchar_t) 0))
126 return (wchar_t *) str;
135 int wcscmp(const wchar_t *cs, const wchar_t *ct)
137 while (*cs != '\0' && *ct != '\0' && *cs == *ct)
146 wchar_t* wcscpy(wchar_t* str1, const wchar_t* str2)
149 DPRINT("wcscpy(str1 %S, str2 %S)\n",str1,str2);
161 size_t wcscspn(const wchar_t *str,const wchar_t *reject)
177 return s-str; /* nr of wchars */
181 size_t wcslen(const wchar_t *s)
183 unsigned int len = 0;
194 wchar_t * wcsncat(wchar_t *dest, const wchar_t *src, size_t count)
198 for (j = 0; dest[j] != 0; j++)
200 for (i = 0; i < count; i++)
202 dest[j + i] = src[i];
214 int wcsncmp(const wchar_t *cs, const wchar_t *ct, size_t count)
216 while (*cs != '\0' && *ct != '\0' && *cs == *ct && --count)
225 wchar_t *wcsncpy(wchar_t *dest, const wchar_t *src, size_t count)
229 for (i = 0; i < count; i++)
243 wchar_t *wcsrchr(const wchar_t *str, wchar_t ch)
245 unsigned int len = 0;
246 while (str[len] != ((wchar_t)0))
251 for (; len > 0; len--)
255 return (wchar_t *) &str[len - 1];
263 size_t wcsspn(const wchar_t *str,const wchar_t *accept)
281 return s-str; /* nr of wchars */
285 wchar_t *wcsstr(const wchar_t *s,const wchar_t *b)
297 while (*y && *c && *y==*c)