]>
Commit | Line | Data |
---|---|---|
ca50de95 | 1 | /* Return classification value corresponding to argument. m68k version. |
dff8da6b | 2 | Copyright (C) 1997-2024 Free Software Foundation, Inc. |
ca50de95 | 3 | This file is part of the GNU C Library. |
ca50de95 AS |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or | |
3214b89b AJ |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
ca50de95 AS |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
3214b89b | 13 | Lesser General Public License for more details. |
ca50de95 | 14 | |
3214b89b | 15 | You should have received a copy of the GNU Lesser General Public |
ab84e3ff | 16 | License along with the GNU C Library. If not, see |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
ca50de95 AS |
18 | |
19 | #include <math.h> | |
20 | ||
e038d690 | 21 | #include <math_private.h> |
ca50de95 AS |
22 | |
23 | ||
24 | int | |
25 | __fpclassifyl (long double x) | |
26 | { | |
24ab7723 | 27 | uint32_t ex, hx, lx; |
ca50de95 AS |
28 | int retval = FP_NORMAL; |
29 | ||
30 | GET_LDOUBLE_WORDS (ex, hx, lx, x); | |
31 | ex &= 0x7fff; | |
32 | if ((ex | hx | lx) == 0) | |
33 | retval = FP_ZERO; | |
34 | else if (ex == 0 && (hx & 0x80000000) == 0) | |
35 | retval = FP_SUBNORMAL; | |
36 | else if (ex == 0x7fff) | |
37 | retval = ((hx & 0x7fffffff) | lx) != 0 ? FP_NAN : FP_INFINITE; | |
38 | ||
39 | return retval; | |
40 | } | |
ce73ae2d | 41 | libm_hidden_def (__fpclassifyl) |