table of contents
wcsstr(3) | Library Functions Manual | wcsstr(3) |
NAME¶
wcsstr - locate a substring in a wide-character string
LIBRARY¶
Standard C library (libc, -lc)
SYNOPSIS¶
#include <wchar.h>
wchar_t *wcsstr(const wchar_t *haystack, const wchar_t *needle);
DESCRIPTION¶
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.
RETURN VALUE¶
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.
ATTRIBUTES¶
For an explanation of the terms used in this section, see attributes(7).
Interface | Attribute | Value |
wcsstr () | Thread safety | MT-Safe |
STANDARDS¶
C11, POSIX.1-2008.
HISTORY¶
POSIX.1-2001, C99.
SEE ALSO¶
2023-03-30 | Linux man-pages 6.04 |