mirror of
https://gcc.gnu.org/git/gcc.git
synced 2024-11-24 03:14:08 +08:00
48 lines
1.5 KiB
C
48 lines
1.5 KiB
C
/* Implement the stpncpy function.
|
|
Copyright (C) 2003 Free Software Foundation, Inc.
|
|
Written by Kaveh R. Ghazi <ghazi@caip.rutgers.edu>.
|
|
|
|
This file is part of the libiberty library.
|
|
Libiberty is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Library General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2 of the License, or (at your option) any later version.
|
|
|
|
Libiberty is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with libiberty; see the file COPYING.LIB. If
|
|
not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
|
|
Boston, MA 02110-1301, USA. */
|
|
|
|
/*
|
|
|
|
@deftypefn Supplemental char* stpncpy (char *@var{dst}, const char *@var{src}, size_t @var{len})
|
|
|
|
Copies the string @var{src} into @var{dst}, copying exactly @var{len}
|
|
and padding with zeros if necessary. If @var{len} < strlen(@var{src})
|
|
then return @var{dst} + @var{len}, otherwise returns @var{dst} +
|
|
strlen(@var{src}).
|
|
|
|
@end deftypefn
|
|
|
|
*/
|
|
|
|
#include <ansidecl.h>
|
|
#include <stddef.h>
|
|
|
|
extern size_t strlen (const char *);
|
|
extern char *strncpy (char *, const char *, size_t);
|
|
|
|
char *
|
|
stpncpy (char *dst, const char *src, size_t len)
|
|
{
|
|
size_t n = strlen (src);
|
|
if (n > len)
|
|
n = len;
|
|
return strncpy (dst, src, len) + n;
|
|
}
|