/* Test of log() function. Copyright (C) 2010-2023 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 , 2010. */ #include #include #include "signature.h" SIGNATURE_CHECK (log, double, (double)); #include #include "minus-zero.h" #include "macros.h" #define DOUBLE double #define HUGEVAL HUGE_VAL #define L_(literal) literal #define MANT_DIG DBL_MANT_DIG #define MINUS_ZERO minus_zerod #define LOG log #define RANDOM randomd #include "test-log.h" int main () { /* A particular value. */ x = 0.6; y = log (x); ASSERT (y >= -0.5108256238 && y <= -0.5108256237); test_function (); return 0; }