1 | /* Prototype declarations for math classification macros helpers. |
2 | Copyright (C) 2017-2022 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
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. |
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 |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | /* Classify given number. */ |
20 | __MATHDECL_ALIAS (int, __fpclassify,, (_Mdouble_ __value), fpclassify) |
21 | __attribute__ ((__const__)); |
22 | |
23 | /* Test for negative number. */ |
24 | __MATHDECL_ALIAS (int, __signbit,, (_Mdouble_ __value), signbit) |
25 | __attribute__ ((__const__)); |
26 | |
27 | /* Return 0 if VALUE is finite or NaN, +1 if it |
28 | is +Infinity, -1 if it is -Infinity. */ |
29 | __MATHDECL_ALIAS (int, __isinf,, (_Mdouble_ __value), isinf) |
30 | __attribute__ ((__const__)); |
31 | |
32 | /* Return nonzero if VALUE is finite and not NaN. Used by isfinite macro. */ |
33 | __MATHDECL_ALIAS (int, __finite,, (_Mdouble_ __value), finite) |
34 | __attribute__ ((__const__)); |
35 | |
36 | /* Return nonzero if VALUE is not a number. */ |
37 | __MATHDECL_ALIAS (int, __isnan,, (_Mdouble_ __value), isnan) |
38 | __attribute__ ((__const__)); |
39 | |
40 | /* Test equality. */ |
41 | __MATHDECL_ALIAS (int, __iseqsig,, (_Mdouble_ __x, _Mdouble_ __y), iseqsig); |
42 | |
43 | /* Test for signaling NaN. */ |
44 | __MATHDECL_ALIAS (int, __issignaling,, (_Mdouble_ __value), issignaling) |
45 | __attribute__ ((__const__)); |
46 | |