/* bignum_copy.c - copy a bignum
- Copyright (C) 1987, 1990, 1991 Free Software Foundation, Inc.
+ Copyright (C) 1987, 1990, 1991, 1992 Free Software Foundation, Inc.
-This file is part of GAS, the GNU Assembler.
+ This file is part of GAS, the GNU Assembler.
-GAS 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; either version 2, or (at your option)
-any later version.
+ GAS 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; either version 2, or (at your option)
+ any later version.
-GAS 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.
+ GAS 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 GAS; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+ You should have received a copy of the GNU General Public License
+ along with GAS; see the file COPYING. If not, write to
+ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "as.h"
-#ifdef USG
-#define bzero(s,n) memset(s,0,n)
-#define bcopy(from,to,n) memcpy(to,from,n)
-#endif
-
/*
* bignum_copy ()
*
* If the output is shorter than the input, copy lower-order littlenums.
* Return 0 or the number of significant littlenums dropped.
* Assumes littlenum arrays are densely packed: no unused chars between
- * the littlenums. Uses bcopy() to move littlenums, and wants to
+ * the littlenums. Uses memcpy() to move littlenums, and wants to
* know length (in chars) of the input bignum.
*/
/* void */
int
bignum_copy (in, in_length, out, out_length)
- register LITTLENUM_TYPE * in;
- register int in_length; /* in sizeof(littlenum)s */
- register LITTLENUM_TYPE * out;
- register int out_length; /* in sizeof(littlenum)s */
+ register LITTLENUM_TYPE *in;
+ register int in_length; /* in sizeof(littlenum)s */
+ register LITTLENUM_TYPE *out;
+ register int out_length; /* in sizeof(littlenum)s */
{
- register int significant_littlenums_dropped;
+ int significant_littlenums_dropped;
if (out_length < in_length)
{
- register LITTLENUM_TYPE * p; /* -> most significant (non-zero) input littlenum. */
+ LITTLENUM_TYPE *p; /* -> most significant (non-zero) input
+ littlenum. */
- bcopy ((char *)in, (char *)out, out_length << LITTLENUM_SHIFT);
- for (p = in + in_length - 1; p >= in; -- p)
+ memcpy ((void *) out, (void *) in,
+ (unsigned int) out_length << LITTLENUM_SHIFT);
+ for (p = in + in_length - 1; p >= in; --p)
{
- if (* p) break;
+ if (*p)
+ break;
}
significant_littlenums_dropped = p - in - in_length + 1;
+
if (significant_littlenums_dropped < 0)
{
significant_littlenums_dropped = 0;
}
else
{
- bcopy ((char *)in, (char *)out, in_length << LITTLENUM_SHIFT);
+ memcpy ((char *) out, (char *) in,
+ (unsigned int) in_length << LITTLENUM_SHIFT);
+
if (out_length > in_length)
{
- bzero ((char *)(out + out_length), (out_length - in_length) << LITTLENUM_SHIFT);
+ memset ((char *) (out + in_length),
+ '\0',
+ (unsigned int) (out_length - in_length) << LITTLENUM_SHIFT);
}
+
significant_littlenums_dropped = 0;
}
+
return (significant_littlenums_dropped);
-}
+} /* bignum_copy() */
-/* end: bignum_copy.c */
+/* end of bignum-copy.c */