/* Test of rounding towards negative infinity. Copyright (C) 2007-2023 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 . */ /* Written by Bruno Haible , 2007. */ #include #include #include "signature.h" SIGNATURE_CHECK (floor, double, (double)); #include "isnand-nolibm.h" #include "minus-zero.h" #include "infinity.h" #include "nan.h" #include "macros.h" int main (int argc, _GL_UNUSED char **argv) { /* Zero. */ ASSERT (floor (0.0) == 0.0); ASSERT (floor (minus_zerod) == 0.0); /* Positive numbers. */ ASSERT (floor (0.3) == 0.0); ASSERT (floor (0.7) == 0.0); ASSERT (floor (1.0) == 1.0); ASSERT (floor (1.5) == 1.0); ASSERT (floor (1.999) == 1.0); ASSERT (floor (2.0) == 2.0); ASSERT (floor (65535.999) == 65535.0); ASSERT (floor (65536.0) == 65536.0); ASSERT (floor (2.341e31) == 2.341e31); /* Negative numbers. */ ASSERT (floor (-0.3) == -1.0); ASSERT (floor (-0.7) == -1.0); ASSERT (floor (-1.0) == -1.0); ASSERT (floor (-1.001) == -2.0); ASSERT (floor (-1.5) == -2.0); ASSERT (floor (-1.999) == -2.0); ASSERT (floor (-2.0) == -2.0); ASSERT (floor (-65535.999) == -65536.0); ASSERT (floor (-65536.0) == -65536.0); ASSERT (floor (-2.341e31) == -2.341e31); /* Infinite numbers. */ ASSERT (floor (Infinityd ()) == Infinityd ()); ASSERT (floor (- Infinityd ()) == - Infinityd ()); /* NaNs. */ ASSERT (isnand (floor (NaNd ()))); return 0; }