wcsspn3
Get length of a prefix wide-character substring
Usage
#include <wchar.h>
size_t wcsspn(const wchar_t *wcs, const wchar_t *accept);
Library
Standard C library (libc, -lc)
Overview
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).
| Interface | Attribute | Value |
| wcsspn() | Thread safety | MT-Safe |
Releases
14 releases since Debian 2.2 (Potato); the text changed 13 times.