*** UNIX MANUAL PAGE BROWSER ***

wcsspn(3) Library Functions Manual wcsspn(3) NAME wcsspn, wcscspn - Return the length of the initial segment of a wide- character string LIBRARY Standard C Library (libc.so, libc.a) SYNOPSIS #include <wchar.h> size_t wcsspn( const wchar_t *wcstring1, const wchar_t *wc- string2); size_t wcscspn( const wchar_t *wcstring1, const wchar_t *wc- string2); STANDARDS Interfaces documented on this reference page conform to industry stan- dards as follows: wcscspn(), wcsspn(): ISO C, XPG4 Refer to the standards(5) reference page for more information about in- dustry standards and associated tags. PARAMETERS Points to a wide-character string being checked for an initial segment. Points to a wide-character string containing a set of wide characters that define the initial segment. DESCRIPTION The wcsspn() and wcscspn() functions compute the number of wide charac- ters in the initial segment of a wide-character string. The wcsspn() function considers the initial segment to consist of all wide charac- ters that are included in the set of wide characters pointed to by the wcstring2 parameter. The function counts these wide characters until it finds one that is not included in the set. The wcscspn() function con- siders the initial segment to consist of all wide characters that are not included in the set of wide characters pointed to by the wcstring2 parameter. The function counts these wide characters until it finds one that is included in the set. RETURN VALUES On successful completion, the wcsspn() and wcscspn() functions return the number of wide characters in the segment. No error return is de- fined for these functions. RELATED INFORMATION Functions: setlocale(3), strspn(3), wcslen(3) Standards: standards(5) delim off wcsspn(3)