Mercurial > hg > octave-lojdl > gnulib-hg
annotate tests/test-rintl.c @ 17460:d11431703671
autoupdate
| author | Karl Berry <karl@freefriends.org> |
|---|---|
| date | Fri, 09 Aug 2013 08:03:30 -0700 |
| parents | e542fd46ad6f |
| children |
| rev | line source |
|---|---|
| 15921 | 1 /* Test of rintl() function. |
|
17249
e542fd46ad6f
maint: update all copyright year number ranges
Eric Blake <eblake@redhat.com>
parents:
16797
diff
changeset
|
2 Copyright (C) 2010-2013 Free Software Foundation, Inc. |
| 15921 | 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 | |
| 15 along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
| 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 (rintl, long double, (long double)); | |
| 25 | |
| 26 #include <float.h> | |
| 27 #include <stdio.h> | |
| 28 | |
| 29 #include "fpucw.h" | |
| 30 #include "isnanl-nolibm.h" | |
| 31 #include "minus-zero.h" | |
| 32 #include "infinity.h" | |
| 33 #include "nan.h" | |
| 34 #include "macros.h" | |
| 35 | |
|
16797
c4a7dd5a1c2c
rint* tests: Avoid gcc warnings.
Bruno Haible <bruno@clisp.org>
parents:
16563
diff
changeset
|
36 #undef INFINITY |
|
c4a7dd5a1c2c
rint* tests: Avoid gcc warnings.
Bruno Haible <bruno@clisp.org>
parents:
16563
diff
changeset
|
37 #undef NAN |
|
c4a7dd5a1c2c
rint* tests: Avoid gcc warnings.
Bruno Haible <bruno@clisp.org>
parents:
16563
diff
changeset
|
38 |
| 16563 | 39 #define DOUBLE long double |
| 40 #define ISNAN isnanl | |
| 41 #define INFINITY Infinityl () | |
| 42 #define NAN NaNl () | |
| 43 #define L_(literal) literal##L | |
| 44 #define RINT rintl | |
| 45 #define RANDOM randoml | |
| 46 #include "test-rint.h" | |
| 47 | |
| 15921 | 48 int |
| 49 main () | |
| 50 { | |
| 51 DECL_LONG_DOUBLE_ROUNDING | |
| 52 | |
| 53 BEGIN_LONG_DOUBLE_ROUNDING (); | |
| 54 | |
| 55 /* Consider the current rounding mode, cf. | |
| 56 <http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/float.h.html> */ | |
| 57 if (FLT_ROUNDS == 1) | |
| 58 { | |
| 59 /* The current rounding mode is round-to-nearest | |
| 60 (the default in IEEE 754). */ | |
| 61 | |
| 62 /* Zero. */ | |
| 63 ASSERT (rintl (0.0L) == 0.0L); | |
| 64 ASSERT (rintl (minus_zerol) == 0.0L); | |
| 65 /* Positive numbers. */ | |
| 66 ASSERT (rintl (0.3L) == 0.0L); | |
| 67 ASSERT (rintl (0.5L) == 0.0L); /* unlike roundl() */ | |
| 68 ASSERT (rintl (0.7L) == 1.0L); | |
| 69 ASSERT (rintl (1.0L) == 1.0L); | |
| 70 ASSERT (rintl (1.5L) == 2.0L); | |
| 71 ASSERT (rintl (1.999L) == 2.0L); | |
| 72 ASSERT (rintl (2.0L) == 2.0L); | |
| 73 ASSERT (rintl (2.1L) == 2.0L); | |
| 74 ASSERT (rintl (2.5L) == 2.0L); /* unlike roundl() */ | |
| 75 ASSERT (rintl (2.7L) == 3.0L); | |
| 76 ASSERT (rintl (65535.999L) == 65536.0L); | |
| 77 ASSERT (rintl (65536.0L) == 65536.0L); | |
| 78 ASSERT (rintl (65536.001L) == 65536.0L); | |
| 79 ASSERT (rintl (2.341e31L) == 2.341e31L); | |
| 80 /* Negative numbers. */ | |
| 81 ASSERT (rintl (-0.3L) == 0.0L); | |
| 82 ASSERT (rintl (-0.5L) == 0.0L); /* unlike roundl() */ | |
| 83 ASSERT (rintl (-0.7L) == -1.0L); | |
| 84 ASSERT (rintl (-1.0L) == -1.0L); | |
| 85 ASSERT (rintl (-1.5L) == -2.0L); | |
| 86 ASSERT (rintl (-1.999L) == -2.0L); | |
| 87 ASSERT (rintl (-2.0L) == -2.0L); | |
| 88 ASSERT (rintl (-2.1L) == -2.0L); | |
| 89 ASSERT (rintl (-2.5L) == -2.0L); /* unlike roundl() */ | |
| 90 ASSERT (rintl (-2.7L) == -3.0L); | |
| 91 ASSERT (rintl (-65535.999L) == -65536.0L); | |
| 92 ASSERT (rintl (-65536.0L) == -65536.0L); | |
| 93 ASSERT (rintl (-65536.001L) == -65536.0L); | |
| 94 ASSERT (rintl (-2.341e31L) == -2.341e31L); | |
| 16563 | 95 |
| 96 test_function (); | |
| 15921 | 97 |
| 98 return 0; | |
| 99 } | |
| 100 else | |
| 101 { | |
| 102 fputs ("Skipping test: non-standard rounding mode\n", stderr); | |
| 103 return 77; | |
| 104 } | |
| 105 } |