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WCSNLEN

WCSNLEN

Section: Linux Programmer's Manual (3) Updated: 2010-09-15
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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'\0' 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'\0' 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/.


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
VERSIONS
CONFORMING TO
SEE ALSO
COLOPHON

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Time: 21:58:11 GMT, April 16, 2011