73 lines
1.7 KiB
C
73 lines
1.7 KiB
C
/***
|
|
*wcsstr.c - search for one wide-character string inside another
|
|
*
|
|
* Copyright (c) 1985-2001, Microsoft Corporation. All rights reserved.
|
|
*
|
|
*Purpose:
|
|
* defines wcsstr() - search for one wchar_t string inside another
|
|
*
|
|
*Revision History:
|
|
* 09-09-91 ETC Created from strstr.c.
|
|
* 04-07-92 KRS Updated and ripped out _INTL switches.
|
|
* 04-06-93 SKS Replace _CRTAPI* with __cdecl
|
|
* 02-07-94 CFW POSIXify.
|
|
* 08-02-00 GB fixed str2 = ""
|
|
*
|
|
*******************************************************************************/
|
|
|
|
#ifndef _POSIX_
|
|
|
|
#include <cruntime.h>
|
|
#include <string.h>
|
|
|
|
/***
|
|
*wchar_t *wcsstr(string1, string2) - search for string2 in string1
|
|
* (wide strings)
|
|
*
|
|
*Purpose:
|
|
* finds the first occurrence of string2 in string1 (wide strings)
|
|
*
|
|
*Entry:
|
|
* wchar_t *string1 - string to search in
|
|
* wchar_t *string2 - string to search for
|
|
*
|
|
*Exit:
|
|
* returns a pointer to the first occurrence of string2 in
|
|
* string1, or NULL if string2 does not occur in string1
|
|
*
|
|
*Uses:
|
|
*
|
|
*Exceptions:
|
|
*
|
|
*******************************************************************************/
|
|
|
|
wchar_t * __cdecl wcsstr (
|
|
const wchar_t * wcs1,
|
|
const wchar_t * wcs2
|
|
)
|
|
{
|
|
wchar_t *cp = (wchar_t *) wcs1;
|
|
wchar_t *s1, *s2;
|
|
|
|
if ( !*wcs2)
|
|
return (wchar_t *)wcs1;
|
|
|
|
while (*cp)
|
|
{
|
|
s1 = cp;
|
|
s2 = (wchar_t *) wcs2;
|
|
|
|
while ( *s1 && *s2 && !(*s1-*s2) )
|
|
s1++, s2++;
|
|
|
|
if (!*s2)
|
|
return(cp);
|
|
|
|
cp++;
|
|
}
|
|
|
|
return(NULL);
|
|
}
|
|
|
|
#endif /* _POSIX_ */
|