Linux cli command wcsspn

➡ A Linux man page (short for manual page) is a form of software documentation found on Linux and Unix-like operating systems. This man-page explains the command wcsspn and provides detailed information about the command wcsspn, system calls, library functions, and other aspects of the system, including usage, options, and examples of _. You can access this man page by typing man followed by the wcsspn.

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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).

InterfaceAttributeValue

wcsspn()

Thread safetyMT-Safe

STANDARDS

C11, POSIX.1-2008.

HISTORY

POSIX.1-2001, C99.

SEE ALSO

strspn(3), wcscspn(3)

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