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Diffstat (limited to 'ext/bcmath/libbcmath/src/sub.c')
| -rw-r--r-- | ext/bcmath/libbcmath/src/sub.c | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/ext/bcmath/libbcmath/src/sub.c b/ext/bcmath/libbcmath/src/sub.c deleted file mode 100644 index 2dd8eb5ecc..0000000000 --- a/ext/bcmath/libbcmath/src/sub.c +++ /dev/null @@ -1,90 +0,0 @@ -/* sub.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" - - -/* Here is the full subtract routine that takes care of negative numbers. - N2 is subtracted from N1 and the result placed in RESULT. SCALE_MIN - is the minimum scale for the result. */ - -void -bc_sub (n1, n2, result, scale_min) - bc_num n1, n2, *result; - int scale_min; -{ - bc_num diff = NULL; - int cmp_res; - int res_scale; - - if (n1->n_sign != n2->n_sign) - { - diff = _bc_do_add (n1, n2, scale_min); - diff->n_sign = n1->n_sign; - } - else - { - /* subtraction must be done. */ - /* Compare magnitudes. */ - cmp_res = _bc_do_compare (n1, n2, FALSE, FALSE); - switch (cmp_res) - { - case -1: - /* n1 is less than n2, subtract n1 from n2. */ - diff = _bc_do_sub (n2, n1, scale_min); - diff->n_sign = (n2->n_sign == PLUS ? MINUS : PLUS); - break; - case 0: - /* They are equal! return zero! */ - res_scale = MAX (scale_min, MAX(n1->n_scale, n2->n_scale)); - diff = bc_new_num (1, res_scale); - memset (diff->n_value, 0, res_scale+1); - break; - case 1: - /* n2 is less than n1, subtract n2 from n1. */ - diff = _bc_do_sub (n1, n2, scale_min); - diff->n_sign = n1->n_sign; - break; - } - } - - /* Clean up and return. */ - bc_free_num (result); - *result = diff; -} - |