mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-18 02:50:09 +00:00
62 lines
1.5 KiB
C
62 lines
1.5 KiB
C
|
/* mpn_add_1 --
|
||
|
|
|
||
|
|
Copyright (C) 1993, 1994 Free Software Foundation, Inc.
|
||
|
|
|
||
|
|
This file is part of the GNU MP Library.
|
||
|
|
|
||
|
|
The GNU MP Library 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.
|
||
|
|
|
||
|
|
The GNU MP Library 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 the GNU MP Library; see the file COPYING.LIB. If not, write to
|
||
|
|
the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
||
|
|
|
||
|
|
#define __mpn_add_1 __noname
|
||
|
|
#include "gmp.h"
|
||
|
|
#undef __mpn_add_1
|
||
|
|
|
||
|
|
#include "gmp-impl.h"
|
||
|
|
|
||
|
|
mp_limb
|
||
|
|
__mpn_add_1 (res_ptr, s1_ptr, s1_size, s2_limb)
|
||
|
|
register mp_ptr res_ptr;
|
||
|
|
register mp_srcptr s1_ptr;
|
||
|
|
register mp_size_t s1_size;
|
||
|
|
register mp_limb s2_limb;
|
||
|
|
{
|
||
|
|
register mp_limb x;
|
||
|
|
|
||
|
|
x = *s1_ptr++;
|
||
|
|
s2_limb = x + s2_limb;
|
||
|
|
*res_ptr++ = s2_limb;
|
||
|
|
if (s2_limb < x)
|
||
|
|
{
|
||
|
|
while (--s1_size != 0)
|
||
|
|
{
|
||
|
|
x = *s1_ptr++ + 1;
|
||
|
|
*res_ptr++ = x;
|
||
|
|
if (x != 0)
|
||
|
|
goto fin;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
fin:
|
||
|
|
if (res_ptr != s1_ptr)
|
||
|
|
{
|
||
|
|
mp_size_t i;
|
||
|
|
for (i = 0; i < s1_size - 1; i++)
|
||
|
|
res_ptr[i] = s1_ptr[i];
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|