Mercurial > gnulib
annotate tests/test-atan2f.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 |
|---|---|
| 15891 | 1 /* Test of atan2f() 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. |
| 15891 | 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/>. */ |
| 15891 | 16 |
| 17 /* Written by Bruno Haible <bruno@clisp.org>, 2010-2011. */ | |
| 18 | |
| 19 #include <config.h> | |
| 20 | |
| 21 #include <math.h> | |
| 22 | |
| 23 #include "signature.h" | |
| 24 SIGNATURE_CHECK (atan2f, float, (float, float)); | |
| 25 | |
| 26 #include "macros.h" | |
| 27 | |
| 28 volatile float x; | |
| 29 volatile float y; | |
| 30 float z; | |
| 31 | |
| 32 int | |
| 33 main () | |
| 34 { | |
| 35 /* A particular value in the first quadrant. */ | |
| 36 x = 0.6f; | |
| 37 y = 0.8f; | |
| 38 z = atan2f (y, x); | |
| 39 ASSERT (z >= 0.92729515f && z <= 0.9272953f); | |
| 40 | |
| 41 /* A particular value in the second quadrant. */ | |
| 42 x = -0.6f; | |
| 43 y = 0.8f; | |
| 44 z = atan2f (y, x); | |
| 45 ASSERT (z >= 2.2142974f && z <= 2.2142975f); | |
| 46 | |
| 47 /* A particular value in the third quadrant. */ | |
| 48 x = -0.6f; | |
| 49 y = -0.8f; | |
| 50 z = atan2f (y, x); | |
| 51 ASSERT (z >= -2.2142975f && z <= -2.2142974f); | |
| 52 | |
| 53 /* A particular value in the fourth quadrant. */ | |
| 54 x = 0.6f; | |
| 55 y = -0.8f; | |
| 56 z = atan2f (y, x); | |
| 57 ASSERT (z >= -0.9272953f && z <= -0.92729515f); | |
| 58 | |
| 59 return 0; | |
| 60 } |