Name
wcsspn - get length of a prefix wide-character substring Library
Standard C library ( libc ", " -lc ) Synopsis
#include <wchar.h>
size_t wcsspn(const wchar_t *" wcs ", const wchar_t * accept );
Description
The wcsspn() function is the wide-character equivalent of the strspn(3) function. It determines the length of the longest initial segment of wcs which consists entirely of wide-characters listed in accept. In other words, it searches for the first occurrence in the wide-character string wcs of a wide-character not contained in the wide-character string accept. Return Value
The wcsspn() function returns the number of wide characters in the longest initial segment of wcs which consists entirely of wide-characters listed in accept. In other words, it returns the position of the first occurrence in the wide-character string wcs of a wide-character not contained in the wide-character string accept, or wcslen(wcs) if there is none. Attributes
For an explanation of the terms used in this section, see attributes(7). allbox; lbx lb lb | Interface | Attribute | Value |
T{ wcsspn() | T} | Thread safety | MT-Safe |