| /* Test of rounding towards zero. |
| Copyright (C) 2007-2020 Free Software Foundation, Inc. |
| |
| This program is free software: you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program. If not, see <https://www.gnu.org/licenses/>. */ |
| |
| /* Written by Bruno Haible <bruno@clisp.org>, 2007. */ |
| |
| #include <config.h> |
| |
| #include <math.h> |
| |
| #include "signature.h" |
| SIGNATURE_CHECK (truncl, long double, (long double)); |
| |
| #include <float.h> |
| |
| #include "fpucw.h" |
| #include "isnanl-nolibm.h" |
| #include "minus-zero.h" |
| #include "infinity.h" |
| #include "nan.h" |
| #include "macros.h" |
| |
| int |
| main () |
| { |
| DECL_LONG_DOUBLE_ROUNDING |
| |
| BEGIN_LONG_DOUBLE_ROUNDING (); |
| |
| /* Zero. */ |
| ASSERT (truncl (0.0L) == 0.0L); |
| ASSERT (truncl (minus_zerol) == 0.0L); |
| /* Positive numbers. */ |
| ASSERT (truncl (0.3L) == 0.0L); |
| ASSERT (truncl (0.7L) == 0.0L); |
| ASSERT (truncl (1.0L) == 1.0L); |
| ASSERT (truncl (1.5L) == 1.0L); |
| ASSERT (truncl (1.999L) == 1.0L); |
| ASSERT (truncl (2.0L) == 2.0L); |
| ASSERT (truncl (65535.999L) == 65535.0L); |
| ASSERT (truncl (65536.0L) == 65536.0L); |
| ASSERT (truncl (2.341e31L) == 2.341e31L); |
| /* Negative numbers. */ |
| ASSERT (truncl (-0.3L) == 0.0L); |
| ASSERT (truncl (-0.7L) == 0.0L); |
| ASSERT (truncl (-1.0L) == -1.0L); |
| ASSERT (truncl (-1.5L) == -1.0L); |
| ASSERT (truncl (-1.999L) == -1.0L); |
| ASSERT (truncl (-2.0L) == -2.0L); |
| ASSERT (truncl (-65535.999L) == -65535.0L); |
| ASSERT (truncl (-65536.0L) == -65536.0L); |
| ASSERT (truncl (-2.341e31L) == -2.341e31L); |
| /* Infinite numbers. */ |
| ASSERT (truncl (Infinityl ()) == Infinityl ()); |
| ASSERT (truncl (- Infinityl ()) == - Infinityl ()); |
| /* NaNs. */ |
| ASSERT (isnanl (truncl (NaNl ()))); |
| |
| return 0; |
| } |