locate a substring in a wide-character string NAME wcsstr - locate a substring in a wide-character string LIBRARY Standard C library ( libc , -lc )......, POSIX.1-2008. HISTORY POSIX.1-2001, C99. SEE ALSO strchr (3), wcspbrk (3), wcsrchr (3), wcsstr (3), wmemchr (3)...strcasecmp (3), strchr (3), string (3), strpbrk (3), strsep (3), strspn (3), strtok (3), wcsstr (3)...strcasecmp (3), strchr (3), string (3), strpbrk (3), strsep (3), strspn (3), strtok (3), wcsstr (3)