wcsnlen — determine the length of a fixed-size wide-character string
#include <wchar.h>
size_t
wcsnlen( |
const wchar_t *s, |
size_t maxlen) ; |
Note | ||||||
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|
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'\0'), 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
.
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
.
For an explanation of the terms used in this section, see attributes(7).
Interface | Attribute | Value |
wcsnlen () |
Thread safety | MT-Safe |
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Copyright (c) Bruno Haible <haibleclisp.cons.org> %%%LICENSE_START(GPLv2+_DOC_ONEPARA) This is free documentation; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. %%%LICENSE_END References consulted: GNU glibc-2 source code and manual Dinkumware C library reference http://www.dinkumware.com/ OpenGroup's Single UNIX specification http://www.UNIX-systems.org/online.html |