.\" Copyright (c) Bruno Haible <haible@clisp.cons.org>
.\"
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.\" 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
.\"   ISO/IEC 9899:1999
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.TH WCSNCPY 3  2013-11-25 "GNU" "Linux Programmer's Manual"
.SH NAME
wcsncpy \- copy a fixed-size string of wide characters
.SH SYNOPSIS
.nf
.B #include <wchar.h>
.sp
.BI "wchar_t *wcsncpy(wchar_t *" dest ", const wchar_t *" src ", size_t " n );
.fi
.SH DESCRIPTION
The
.BR wcsncpy ()
function is the wide-character equivalent of the
.BR strncpy (3)
function.
It copies at most
.I n
wide characters from the wide-character
string pointed to by
.IR src ,
including the terminating null wide character (L\(aq\\0\(aq),
to the array pointed to by
.IR dest .
Exactly
.I n
wide characters are
written at
.IR dest .
If the length \fIwcslen(src)\fP is smaller than
.IR n ,
the remaining wide characters in the array
pointed to by
.I dest
are filled
with null wide characters.
If the length \fIwcslen(src)\fP is greater than or equal
to
.IR n ,
the string pointed to by
.I dest
will not be terminated by a null wide character.
.PP
The strings may not overlap.
.PP
The programmer must ensure that there is room for at least
.I n
wide
characters at
.IR dest .
.SH RETURN VALUE
.BR wcsncpy ()
returns
.IR dest .
.SH ATTRIBUTES
.SS Multithreading (see pthreads(7))
The
.BR wcsncpy ()
function is thread-safe.
.SH CONFORMING TO
C99.
.SH SEE ALSO
.BR strncpy (3)
.SH COLOPHON
This page is part of release 3.79 of the Linux
.I man-pages
project.
A description of the project,
information about reporting bugs,
and the latest version of this page,
can be found at
\%http://www.kernel.org/doc/man\-pages/.