WCSSTR(3) Library Functions Manual WCSSTR(3)

wcsstr — find a wide-character substring

#include <wchar.h>

wchar_t *wcsstr(const wchar_t *restrict ws1,
       const wchar_t *restrict ws2);

The functionality described on this reference page is aligned with the ISO C standard. Any conflict between the requirements described here and the ISO C standard is unintentional. This volume of IEEE Std 1003.1-2001 (“POSIX.1”) defers to the ISO C standard.

The wcsstr () function shall locate the first occurrence in the wide-character string pointed to by ws1 of the sequence of wide characters (excluding the terminating null wide character) in the wide-character string pointed to by ws2.

Upon successful completion, wcsstr () shall return a pointer to the located wide-character string, or a null pointer if the wide-character string is not found.

If ws2 points to a wide-character string with zero length, the function shall return ws1.

No errors are defined.

None.

None.

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wcschr(3), the Base Definitions volume of IEEE Std 1003.1-2001 (“POSIX.1”), <wchar.h>

First released in Issue 5. Included for alignment with ISO/IEC 9899/AMD1:1995 (“ISO C90, Amendment 1”) (E).

The wcsstr () prototype is updated for alignment with the ISO/IEC 9899:1999 (“ISO C99”) standard.

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December 6, 2001 posix.fail