d: Merge upstream dmd, druntime 2bbf64907c, phobos b64bfbf91
[official-gcc.git] / libgcc / divmod.c
blobd08022a6a0abe59162e58b783a1bbe020c847684
1 /* Copyright (C) 2000-2023 Free Software Foundation, Inc.
3 This file is part of GCC.
5 GCC is free software; you can redistribute it and/or modify it under
6 the terms of the GNU General Public License as published by the Free
7 Software Foundation; either version 3, or (at your option) any later
8 version.
10 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
11 WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 for more details.
15 Under Section 7 of GPL version 3, you are granted additional
16 permissions described in the GCC Runtime Library Exception, version
17 3.1, as published by the Free Software Foundation.
19 You should have received a copy of the GNU General Public License and
20 a copy of the GCC Runtime Library Exception along with this program;
21 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
22 <http://www.gnu.org/licenses/>. */
24 extern unsigned long __udivmodsi4(unsigned long num, unsigned long den,
25 int modwanted);
27 long
28 __divsi3 (long a, long b)
30 int neg = 0;
31 long res;
33 if (a < 0)
35 a = -a;
36 neg = !neg;
39 if (b < 0)
41 b = -b;
42 neg = !neg;
45 res = __udivmodsi4 (a, b, 0);
47 if (neg)
48 res = -res;
50 return res;
53 long
54 __modsi3 (long a, long b)
56 int neg = 0;
57 long res;
59 if (a < 0)
61 a = -a;
62 neg = 1;
65 if (b < 0)
66 b = -b;
68 res = __udivmodsi4 (a, b, 1);
70 if (neg)
71 res = -res;
73 return res;