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WCSCSPN(3) Linux Programmer's Manual WCSCSPN(3) NAME wcscspn - search a wide-character string for any of a set of wide characters SYNOPSIS #include <wchar.h> size_t wcscspn(const wchar_t *wcs, const wchar_t *reject); DESCRIPTION The wcscspn() function is the wide-character equivalent of the strcspn(3) function. It determines the length of the longest initial segment of wcs which conβ sists entirely of wide-characters not listed in reject. In other words, it searches for the first occurrence in the wide-character string wcs of any of the characters in the wide-character string reject. RETURN VALUE The wcscspn() function returns the number of wide characters in the longest initial segment of wcs which consists entirely of wide-characters not listed in reβ ject. In other words, it returns the position of the first occurrence in the wide-character string wcs of any of the characters in the wide-character string reβ ject, or wcslen(wcs) if there is none. ATTRIBUTES For an explanation of the terms used in this section, see attributes(7). ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ¬ββββββββββββββββ¬ββββββββββ βInterface β Attribute β Value β ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββΌββββββββββββββββΌββββββββββ€ βwcscspn() β Thread safety β MT-Safe β ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ΄ββββββββββββββββ΄ββββββββββ CONFORMING TO POSIX.1-2001, POSIX.1-2008, C99. SEE ALSO strcspn(3), wcspbrk(3), wcsspn(3) GNU 2021-03-22 WCSCSPN(3)