Mercurial > gnulib
annotate tests/test-log2.c @ 40196:e63f5d3edab5
relocatable-prog: Update documentation.
* doc/relocatable-maint.texi (Supporting Relocation): Update to match
the recent changes.
| author | Bruno Haible <bruno@clisp.org> |
|---|---|
| date | Sun, 24 Feb 2019 01:49:15 +0100 |
| parents | b06060465f09 |
| children |
| rev | line source |
|---|---|
| 16677 | 1 /* Test of log2() function. |
|
40057
b06060465f09
maint: Run 'make update-copyright'
Paul Eggert <eggert@cs.ucla.edu>
parents:
19484
diff
changeset
|
2 Copyright (C) 2010-2019 Free Software Foundation, Inc. |
| 16677 | 3 |
| 4 This program is free software: you can redistribute it and/or modify | |
| 5 it under the terms of the GNU General Public License as published by | |
| 6 the Free Software Foundation; either version 3 of the License, or | |
| 7 (at your option) any later version. | |
| 8 | |
| 9 This program is distributed in the hope that it will be useful, | |
| 10 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 12 GNU General Public License for more details. | |
| 13 | |
| 14 You should have received a copy of the GNU General Public License | |
| 19190 | 15 along with this program. If not, see <https://www.gnu.org/licenses/>. */ |
| 16677 | 16 |
| 17 /* Written by Bruno Haible <bruno@clisp.org>, 2012. */ | |
| 18 | |
| 19 #include <config.h> | |
| 20 | |
| 21 #include <math.h> | |
| 22 | |
| 23 #include "signature.h" | |
| 24 SIGNATURE_CHECK (log2, double, (double)); | |
| 25 | |
| 26 #include <float.h> | |
| 27 | |
| 28 #include "minus-zero.h" | |
| 29 #include "macros.h" | |
| 30 | |
| 31 #define DOUBLE double | |
| 32 #define HUGEVAL HUGE_VAL | |
| 33 #define L_(literal) literal | |
| 34 #define MANT_DIG DBL_MANT_DIG | |
| 35 #define MAX_EXP DBL_MAX_EXP | |
| 36 #define MIN_EXP DBL_MIN_EXP | |
| 37 #define MINUS_ZERO minus_zerod | |
| 38 #define LOG2 log2 | |
| 39 #define RANDOM randomd | |
| 40 #include "test-log2.h" | |
| 41 | |
| 42 int | |
| 43 main () | |
| 44 { | |
| 45 /* A particular value. */ | |
| 46 x = 0.6; | |
| 47 y = log2 (x); | |
| 48 ASSERT (y >= -0.7369655942 && y <= -0.7369655941); | |
| 49 | |
| 50 test_function (); | |
| 51 | |
| 52 return 0; | |
| 53 } |