WCSNLEN(3) Linux Programmer's Manual WCSNLEN(3)
NAME
wcsnlen - determine the length of a fixed-size wide-character string
SYNOPSIS
#include <wchar.h>
size_t wcsnlen(const wchar_t *s, size_t maxlen);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
wcsnlen():
Since glibc 2.10:
_XOPEN_SOURCE >= 700 || _POSIX_C_SOURCE >= 200809L
Before glibc 2.10:
_GNU_SOURCE
DESCRIPTION
The wcsnlen() function is the wide-character equivalent of the strnlen(3) function. It returns the number of wide-characters in the string
pointed to by s, not including the terminating L' ' character, but at most maxlen. In doing this, wcsnlen() looks only at the first
maxlen wide-characters at s and never beyond s+maxlen.
RETURN VALUE
The wcsnlen() function returns wcslen(s), if that is less than maxlen, or maxlen if there is no L' ' character among the first maxlen wide
characters pointed to by s.
VERSIONS
The wcsnlen() function is provided in glibc since version 2.1.
CONFORMING TO
This function is a GNU extension.
SEE ALSO
strnlen(3), wcslen(3)
COLOPHON
This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
GNU
2010-09-15 WCSNLEN(3)
