wcsstr - locate a substring in a wide-character string
#include <wchar.h>
wchar_t *wcsstr(const wchar_t *haystack, const wchar_t *needle);
The
wcsstr() function is the wide-character equivalent of the
strstr(3) function. It searches for the first occurrence of the
wide-character string
needle (without its terminating null wide
character (L'\0')) as a substring in the wide-character string
haystack.
The
wcsstr() function returns a pointer to the first occurrence of
needle in
haystack. It returns NULL if
needle does not
occur as a substring in
haystack.
Note the special case: If
needle is the empty wide-character string, the
return value is always
haystack itself.
For an explanation of the terms used in this section, see
attributes(7).
| Interface |
Attribute |
Value |
| wcsstr () |
Thread safety |
MT-Safe |
POSIX.1-2001, POSIX.1-2008, C99.
strstr(3),
wcschr(3)