MGMDB/MySQL/strnmov.c

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2011-10-02 20:48:43 -05:00
/* Copyright (C) 2000 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/*
strnmov(dst,src,length) moves length characters, or until end, of src to
dst and appends a closing NUL to dst if src is shorter than length.
The result is a pointer to the first NUL in dst, or is dst+n if dst was
truncated.
*/
#include <my_global.h>
#include "m_string.h"
char *strnmov(register char *dst, register const char *src, size_t n)
{
while (n-- != 0) {
if (!(*dst++ = *src++)) {
return (char*) dst-1;
}
}
return dst;
}