aa9bc17601
BMakefiles and other bits will follow. Requested by: Andrey Chernov Made world by: Chuck Robey
55 lines
1.5 KiB
C
55 lines
1.5 KiB
C
/* mpq_set_si(dest,ulong_num,ulong_den) -- Set DEST to the retional number
|
|
ULONG_NUM/ULONG_DEN.
|
|
|
|
Copyright (C) 1991, 1994, 1995 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., 59 Temple Place - Suite 330, Boston,
|
|
MA 02111-1307, USA. */
|
|
|
|
#include "gmp.h"
|
|
#include "gmp-impl.h"
|
|
|
|
void
|
|
#if __STDC__
|
|
mpq_set_si (MP_RAT *dest, signed long int num, unsigned long int den)
|
|
#else
|
|
mpq_set_si (dest, num, den)
|
|
MP_RAT *dest;
|
|
signed long int num;
|
|
unsigned long int den;
|
|
#endif
|
|
{
|
|
unsigned long int abs_num;
|
|
|
|
abs_num = ABS (num);
|
|
|
|
if (num == 0)
|
|
{
|
|
/* Canonicalize 0/d to 0/1. */
|
|
den = 1;
|
|
dest->_mp_num._mp_size = 0;
|
|
}
|
|
else
|
|
{
|
|
dest->_mp_num._mp_d[0] = abs_num;
|
|
dest->_mp_num._mp_size = num > 0 ? 1 : -1;
|
|
}
|
|
|
|
dest->_mp_den._mp_d[0] = den;
|
|
dest->_mp_den._mp_size = 1;
|
|
}
|