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1ad08256f3
This patch adds missing newlines, trims multiple redundant final newlines into a single one, and trims redundant leading newlines. According to POSIX, a line is a sequence of zero or more non-' <newline>' characters plus a terminating '<newline>' character. [1] Files should normally have at least one final newline character. C89 [2] and later standards [3] mention a final newline: "A source file that is not empty shall end in a new-line character, which shall not be immediately preceded by a backslash character." Although it is not mandatory for all files to have a final newline fixed, a more consistent and homogeneous approach brings less of commit differences issues and a better development experience in certain text editors and IDEs. [1] http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_206 [2] https://port70.net/~nsz/c/c89/c89-draft.html#2.1.1.2 [3] https://port70.net/~nsz/c/c99/n1256.html#5.1.1.2
86 lines
2.4 KiB
C
86 lines
2.4 KiB
C
/* divmod.c: bcmath library file. */
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/*
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Copyright (C) 1991, 1992, 1993, 1994, 1997 Free Software Foundation, Inc.
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Copyright (C) 2000 Philip A. Nelson
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details. (COPYING.LIB)
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to:
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The Free Software Foundation, Inc.
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59 Temple Place, Suite 330
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Boston, MA 02111-1307 USA.
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You may contact the author by:
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e-mail: philnelson@acm.org
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us-mail: Philip A. Nelson
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Computer Science Department, 9062
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Western Washington University
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Bellingham, WA 98226-9062
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*************************************************************************/
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#include <config.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <ctype.h>
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#include <stdarg.h>
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#include "bcmath.h"
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#include "private.h"
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/* Division *and* modulo for numbers. This computes both NUM1 / NUM2 and
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NUM1 % NUM2 and puts the results in QUOT and REM, except that if QUOT
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is NULL then that store will be omitted.
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*/
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int
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bc_divmod (bc_num num1, bc_num num2, bc_num *quot, bc_num *rem, int scale)
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{
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bc_num quotient = NULL;
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bc_num temp;
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int rscale;
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/* Check for correct numbers. */
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if (bc_is_zero (num2)) return -1;
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/* Calculate final scale. */
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rscale = MAX (num1->n_scale, num2->n_scale+scale);
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bc_init_num(&temp);
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/* Calculate it. */
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bc_divide (num1, num2, &temp, 0);
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if (quot)
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quotient = bc_copy_num (temp);
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bc_multiply (temp, num2, &temp, rscale);
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bc_sub (num1, temp, rem, rscale);
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bc_free_num (&temp);
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if (quot)
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{
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bc_free_num (quot);
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*quot = quotient;
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}
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return 0; /* Everything is OK. */
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}
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/* Modulo for numbers. This computes NUM1 % NUM2 and puts the
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result in RESULT. */
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int
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bc_modulo (bc_num num1, bc_num num2, bc_num *result, int scale)
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{
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return bc_divmod (num1, num2, NULL, result, scale);
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}
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