wcsstr
Section: C Library Functions (3)
Updated: 2023-02-05
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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
POSIX.1-2001, POSIX.1-2008, C99.
SEE ALSO
strstr(3),
wcschr(3)
Index
- NAME
-
- LIBRARY
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- ATTRIBUTES
-
- STANDARDS
-
- SEE ALSO
-
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