53 lines
1.4 KiB
C
53 lines
1.4 KiB
C
|
/* mpz_mmod -- Mathematical MODulo, i.e. with the remainder
|
||
|
|
non-negative.
|
||
|
|
|
||
|
|
Copyright (C) 1991, 1992 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 General Public License as published by
|
||
|
|
the Free Software Foundation; either version 2, 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 General Public License for more details.
|
||
|
|
|
||
|
|
You should have received a copy of the GNU General Public License
|
||
|
|
along with the GNU MP Library; see the file COPYING. If not, write to
|
||
|
|
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
|
||
|
|
|
||
|
|
#include "gmp.h"
|
||
|
|
#include "gmp-impl.h"
|
||
|
|
|
||
|
|
unsigned long int
|
||
|
|
#ifdef __STDC__
|
||
|
|
mpz_mmod_ui (MP_INT *rem,
|
||
|
|
const MP_INT *dividend, unsigned long int divisor)
|
||
|
|
#else
|
||
|
|
mpz_mmod_ui (rem, dividend, divisor)
|
||
|
|
MP_INT *rem;
|
||
|
|
const MP_INT *dividend;
|
||
|
|
unsigned long int divisor;
|
||
|
|
#endif
|
||
|
|
{
|
||
|
|
MP_INT temp_rem; /* N.B.: lives until function returns! */
|
||
|
|
|
||
|
|
if (rem == NULL)
|
||
|
|
{
|
||
|
|
MPZ_TMP_INIT (&temp_rem, 1 + ABS (dividend->size));
|
||
|
|
rem = &temp_rem;
|
||
|
|
}
|
||
|
|
|
||
|
|
mpz_mod_ui (rem, dividend, divisor);
|
||
|
|
|
||
|
|
if (rem->size < 0)
|
||
|
|
mpz_add_ui (rem, rem, divisor);
|
||
|
|
|
||
|
|
if (rem->size == 0)
|
||
|
|
return 0;
|
||
|
|
return rem->d[0];
|
||
|
|
}
|