Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * floor, trunc, ceil | |
3 | */ | |
4 | /* | |
5 | * MIPS floating point support | |
6 | * Copyright (C) 1994-2000 Algorithmics Ltd. | |
7 | * http://www.algor.co.uk | |
8 | * | |
9 | * ######################################################################## | |
10 | * | |
11 | * This program is free software; you can distribute it and/or modify it | |
12 | * under the terms of the GNU General Public License (Version 2) as | |
13 | * published by the Free Software Foundation. | |
14 | * | |
15 | * This program is distributed in the hope it will be useful, but WITHOUT | |
16 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
17 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
18 | * for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License along | |
21 | * with this program; if not, write to the Free Software Foundation, Inc., | |
22 | * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. | |
23 | * | |
24 | * ######################################################################## | |
25 | */ | |
26 | ||
27 | ||
28 | #include "ieee754.h" | |
29 | ||
30 | ieee754dp ieee754dp_floor(ieee754dp x) | |
31 | { | |
32 | ieee754dp i; | |
33 | ||
34 | if (ieee754dp_lt(ieee754dp_modf(x, &i), ieee754dp_zero(0))) | |
35 | return ieee754dp_sub(i, ieee754dp_one(0)); | |
36 | else | |
37 | return i; | |
38 | } | |
39 | ||
40 | ieee754dp ieee754dp_ceil(ieee754dp x) | |
41 | { | |
42 | ieee754dp i; | |
43 | ||
44 | if (ieee754dp_gt(ieee754dp_modf(x, &i), ieee754dp_zero(0))) | |
45 | return ieee754dp_add(i, ieee754dp_one(0)); | |
46 | else | |
47 | return i; | |
48 | } | |
49 | ||
50 | ieee754dp ieee754dp_trunc(ieee754dp x) | |
51 | { | |
52 | ieee754dp i; | |
53 | ||
54 | (void) ieee754dp_modf(x, &i); | |
55 | return i; | |
56 | } |