mirror of https://github.com/mkerrisk/man-pages
53 lines
1.7 KiB
Groff
53 lines
1.7 KiB
Groff
.\" Copyright (c) Bruno Haible <haible@clisp.cons.org>
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.\"
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.\" This is free documentation; you can redistribute it and/or
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.\" modify it under the terms of the GNU General Public License as
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.\" published by the Free Software Foundation; either version 2 of
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.\" the License, or (at your option) any later version.
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.\"
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.\" References consulted:
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.\" GNU glibc-2 source code and manual
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.\" Dinkumware C library reference http://www.dinkumware.com/
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.\" OpenGroup's Single Unix specification http://www.UNIX-systems.org/online.html
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.\" ISO/IEC 9899:1999
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.\"
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.TH WCSNCPY 3 1999-07-25 "GNU" "Linux Programmer's Manual"
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.SH NAME
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wcsncpy \- copy a fixed-size string of wide characters
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.SH SYNOPSIS
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.nf
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.B #include <wchar.h>
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.sp
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.BI "wchar_t *wcsncpy(wchar_t *" dest ", const wchar_t *" src ", size_t " n );
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.fi
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.SH DESCRIPTION
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The
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.BR wcsncpy ()
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function is the wide-character equivalent of the
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.BR strncpy (3)
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function.
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It copies at most \fIn\fP wide characters from the wide-character
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string pointed to by \fIsrc\fP, including the terminating L'\\0' character,
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to the array pointed to by \fIdest\fP.
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Exactly \fIn\fP wide characters are
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written at \fIdest\fP.
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If the length \fIwcslen(src)\fP is smaller than \fIn\fP,
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the remaining wide characters in the array
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pointed to by \fIdest\fP are filled
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with L'\\0' characters.
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If the length \fIwcslen(src)\fP is greater or equal
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to \fIn\fP, the string pointed to by \fIdest\fP
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will not be L'\\0' terminated.
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.PP
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The strings may not overlap.
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.PP
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The programmer must ensure that there is room for at least \fIn\fP wide
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characters at \fIdest\fP.
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.SH "RETURN VALUE"
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.BR wcsncpy ()
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returns \fIdest\fP.
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.SH "CONFORMING TO"
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C99.
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.SH "SEE ALSO"
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.BR strncpy (3)
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