.\" Copyright (c) Bruno Haible <haible@clisp.cons.org>

.\"

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.\" References consulted:

.\"   GNU glibc-2 source code and manual

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.\"   OpenGroup's Single UNIX specification http://www.UNIX-systems.org/online.html

.\"   ISO/IEC 9899:1999

.\"

.TH WCSNCPY 3  2015-08-08 "GNU" "Linux Programmer's Manual"

.SH NAME

wcsncpy \- copy a fixed-size string of wide characters

.SH SYNOPSIS

.nf

.B #include <wchar.h>

.PP

.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

For an explanation of the terms used in this section, see

.BR attributes (7).

.TS

allbox;

lb lb lb

l l l.

Interface	Attribute	Value

T{

.BR wcsncpy ()

T}	Thread safety	MT-Safe

.TE

.SH CONFORMING TO

POSIX.1-2001, POSIX.1-2008, C99.

.SH SEE ALSO

.BR strncpy (3)

.SH COLOPHON

This page is part of release 4.15 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

\%https://www.kernel.org/doc/man\-pages/.