wcsstr(3) locate a substring in a wide-character string

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).
InterfaceAttributeValue
wcsstr() Thread safetyMT-Safe

CONFORMING TO

POSIX.1-2001, POSIX.1-2008, C99.

COLOPHON

This page is part of release 4.06 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.