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wcsnlen(3) [opendarwin man page]

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: _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 null wide character (L''), but at most maxlen wide characters (note: this parameter is not a byte count). In doing this, wcsnlen() looks at only 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 null wide character among the first maxlen wide characters pointed to by s. VERSIONS
The wcsnlen() function is provided in glibc since version 2.1. ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7). +----------+---------------+---------+ |Interface | Attribute | Value | +----------+---------------+---------+ |wcsnlen() | Thread safety | MT-Safe | +----------+---------------+---------+ CONFORMING TO
POSIX.1-2008. SEE ALSO
strnlen(3), wcslen(3) COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/. GNU
2016-03-15 WCSNLEN(3)

Check Out this Related Man Page

WCPNCPY(3)						     Linux Programmer's Manual							WCPNCPY(3)

NAME
wcpncpy - copy a fixed-size string of wide characters, returning a pointer to its end SYNOPSIS
#include <wchar.h> wchar_t *wcpncpy(wchar_t *dest, const wchar_t *src, size_t n); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): wcpncpy(): Since glibc 2.10: _POSIX_C_SOURCE >= 200809L Before glibc 2.10: _GNU_SOURCE DESCRIPTION
The wcpncpy() function is the wide-character equivalent of the stpncpy(3) function. It copies at most n wide characters from the wide- character string pointed to by src, including the terminating null wide (L''), to the array pointed to by dest. Exactly n wide charac- ters are written at dest. If the length wcslen(src) is smaller than n, the remaining wide characters in the array pointed to by dest are filled with L'' characters. If the length wcslen(src) is greater than or equal to n, the string pointed to by dest will not be L'' terminated. The strings may not overlap. The programmer must ensure that there is room for at least n wide characters at dest. RETURN VALUE
wcpncpy() returns a pointer to the last wide character written, that is, dest+n-1. ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7). +----------+---------------+---------+ |Interface | Attribute | Value | +----------+---------------+---------+ |wcpncpy() | Thread safety | MT-Safe | +----------+---------------+---------+ CONFORMING TO
POSIX.1-2008. SEE ALSO
stpncpy(3), wcsncpy(3) COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/. GNU
2016-03-15 WCPNCPY(3)
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