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 returns a pointer to the first occurrence of
haystack. It returns NULL if
needle does not occur as a substring in
Note the special case: If
needle is the empty wide-character string, the return value is always
POSIX.1-2001, POSIX.1-2008, C99.
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