Mercurial > gnulib
annotate tests/test-lgamma.c @ 40057:b06060465f09
maint: Run 'make update-copyright'
| author | Paul Eggert <eggert@cs.ucla.edu> |
|---|---|
| date | Tue, 01 Jan 2019 00:25:11 +0100 |
| parents | 10eb9086bea0 |
| children |
| rev | line source |
|---|---|
| 12796 | 1 /* Test of lgamma() function. |
|
40057
b06060465f09
maint: Run 'make update-copyright'
Paul Eggert <eggert@cs.ucla.edu>
parents:
19484
diff
changeset
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2 Copyright (C) 2010-2019 Free Software Foundation, Inc. |
| 12796 | 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/>. */ |
| 12796 | 16 |
| 17 /* Written by Bruno Haible <bruno@clisp.org>, 2010. */ | |
| 18 | |
| 19 #include <config.h> | |
| 20 | |
| 21 #include <math.h> | |
| 22 | |
| 23 #include "signature.h" | |
| 24 SIGNATURE_CHECK (lgamma, double, (double)); | |
| 25 | |
| 26 #include "macros.h" | |
| 27 | |
| 28 volatile double x; | |
| 29 double y; | |
| 30 | |
| 31 int | |
| 32 main () | |
| 33 { | |
| 34 /* A particular value. */ | |
| 35 x = 0.6; | |
| 36 y = lgamma (x); | |
| 37 /* Γ(x) = 1.4891922488... */ | |
| 38 ASSERT (y >= 0.3982338580 && y <= 0.3982338581); | |
| 39 | |
| 40 return 0; | |
| 41 } |