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-/* divmod.c: bcmath library file. */
-/*
- Copyright (C) 1991, 1992, 1993, 1994, 1997 Free Software Foundation, Inc.
- Copyright (C) 2000 Philip A. Nelson
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
-
- This 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
- Lesser General Public License for more details. (COPYING.LIB)
-
- You should have received a copy of the GNU Lesser General Public
- License along with this library; if not, write to:
-
- The Free Software Foundation, Inc.
- 59 Temple Place, Suite 330
- Boston, MA 02111-1307 USA.
-
- You may contact the author by:
- e-mail: philnelson@acm.org
- us-mail: Philip A. Nelson
- Computer Science Department, 9062
- Western Washington University
- Bellingham, WA 98226-9062
-
-*************************************************************************/
-
-#include <config.h>
-#include <stdio.h>
-#include <assert.h>
-#include <stdlib.h>
-#include <ctype.h>
-#include <stdarg.h>
-#include "bcmath.h"
-#include "private.h"
-
-
-/* Division *and* modulo for numbers. This computes both NUM1 / NUM2 and
- NUM1 % NUM2 and puts the results in QUOT and REM, except that if QUOT
- is NULL then that store will be omitted.
- */
-
-int
-bc_divmod (num1, num2, quot, rem, scale)
- bc_num num1, num2, *quot, *rem;
- int scale;
-{
- bc_num quotient = NULL;
- bc_num temp;
- int rscale;
-
- /* Check for correct numbers. */
- if (bc_is_zero (num2)) return -1;
-
- /* Calculate final scale. */
- rscale = MAX (num1->n_scale, num2->n_scale+scale);
- bc_init_num(&temp);
-
- /* Calculate it. */
- bc_divide (num1, num2, &temp, scale);
- if (quot)
- quotient = bc_copy_num (temp);
- bc_multiply (temp, num2, &temp, rscale);
- bc_sub (num1, temp, rem, rscale);
- bc_free_num (&temp);
-
- if (quot)
- {
- bc_free_num (quot);
- *quot = quotient;
- }
-
- return 0; /* Everything is OK. */
-}
-
-
-/* Modulo for numbers. This computes NUM1 % NUM2 and puts the
- result in RESULT. */
-
-int
-bc_modulo (num1, num2, result, scale)
- bc_num num1, num2, *result;
- int scale;
-{
- return bc_divmod (num1, num2, NULL, result, scale);
-}
-