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/contrib/groff/src/libs/libgroff/fmod.c

https://bitbucket.org/freebsd/freebsd-head/
C | 28 lines | 7 code | 3 blank | 18 comment | 0 complexity | eaef4c7be47a94036ae147d268fafeb0 MD5 | raw file
 1/* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
 2     Written by James Clark (jjc@jclark.com)
 3
 4This file is part of groff.
 5
 6groff is free software; you can redistribute it and/or modify it under
 7the terms of the GNU General Public License as published by the Free
 8Software Foundation; either version 2, or (at your option) any later
 9version.
10
11groff is distributed in the hope that it will be useful, but WITHOUT ANY
12WARRANTY; without even the implied warranty of MERCHANTABILITY or
13FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14for more details.
15
16You should have received a copy of the GNU General Public License along
17with groff; see the file COPYING.  If not, write to the Free Software
18Foundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, USA. */
19
20#include <math.h>
21
22double fmod(x, y)
23     double x, y;
24{
25  double quot = x/y;
26  return x - (quot < 0.0 ? ceil(quot) : floor(quot)) * y;
27}
28