projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| ca50de95 | 1 | /* Return classification value corresponding to argument. m68k version. |
| 568035b7 | 2 | Copyright (C) 1997-2013 Free Software Foundation, Inc. |
| ca50de95 AS |
3 | This file is part of the GNU C Library. |
| 4 | Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. | |
| 5 | Fixed for m68k by Andreas Schwab <schwab@suse.de>. | |
| 6 | ||
| 7 | The GNU C Library is free software; you can redistribute it and/or | |
| 3214b89b AJ |
8 | modify it under the terms of the GNU Lesser General Public |
| 9 | License as published by the Free Software Foundation; either | |
| 10 | version 2.1 of the License, or (at your option) any later version. | |
| ca50de95 AS |
11 | |
| 12 | The GNU C Library is distributed in the hope that it will be useful, | |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 3214b89b | 15 | Lesser General Public License for more details. |
| ca50de95 | 16 | |
| 3214b89b | 17 | You should have received a copy of the GNU Lesser General Public |
| ab84e3ff PE |
18 | License along with the GNU C Library. If not, see |
| 19 | <http://www.gnu.org/licenses/>. */ | |
| ca50de95 AS |
20 | |
| 21 | #include <math.h> | |
| 22 | ||
| e038d690 | 23 | #include <math_private.h> |
| ca50de95 AS |
24 | |
| 25 | ||
| 26 | int | |
| 27 | __fpclassifyl (long double x) | |
| 28 | { | |
| 29 | u_int32_t ex, hx, lx; | |
| 30 | int retval = FP_NORMAL; | |
| 31 | ||
| 32 | GET_LDOUBLE_WORDS (ex, hx, lx, x); | |
| 33 | ex &= 0x7fff; | |
| 34 | if ((ex | hx | lx) == 0) | |
| 35 | retval = FP_ZERO; | |
| 36 | else if (ex == 0 && (hx & 0x80000000) == 0) | |
| 37 | retval = FP_SUBNORMAL; | |
| 38 | else if (ex == 0x7fff) | |
| 39 | retval = ((hx & 0x7fffffff) | lx) != 0 ? FP_NAN : FP_INFINITE; | |
| 40 | ||
| 41 | return retval; | |
| 42 | } | |
| ce73ae2d | 43 | libm_hidden_def (__fpclassifyl) |