WCSSTR(3) Linux Programmers Manual WCSSTR(3)
wcsstr - locate a substring in a wide-character string
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 L'\0' character) as a substring
in the wide-character string haystack.
The wcsstr() function returns a pointer to the first occurrence of nee
dle in haystack. It returns NULL if needle does not occur as a sub
string in haystack.
Note the special case: If needle is the empty wide-character string,
the return value is always haystack itself.
This page is part of release 3.05 of the Linux man-pages project. A
description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
GNU 1999-07-25 WCSSTR(3)