wcscspn man page

Prolog

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wcscspn — get the length of a complementary wide substring

Synopsis

#include <wchar.h>

size_t wcscspn(const wchar_t *ws1, const wchar_t *ws2);

Description

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 POSIX.1‐2008 defers to the ISO C standard.

The wcscspn() function shall compute the length (in wide characters) of the maximum initial segment of the wide-character string pointed to by ws1 which consists entirely of wide-character codes not from the wide-character string pointed to by ws2.

Return Value

The wcscspn() function shall return the length of the initial substring of ws1; no return value is reserved to indicate an error.

Errors

No errors are defined.

The following sections are informative.

See Also

wcsspn()

The Base Definitions volume of POSIX.1‐2008, <wchar.h>

Info

2013 IEEE/The Open Group POSIX Programmer's Manual