2024-07-29 Bruno Haible <bruno@clisp.org>
+ logp1: Add tests.
+ * tests/test-logp1.c: New file, based on tests/test-log1p.c.
+ * modules/logp1-tests: New file.
+
logp1: New module.
* lib/math.in.h (logp1): New declaration.
* lib/logp1.c: New file.
--- /dev/null
+/* Test of logp1() function.
+ Copyright (C) 2010-2024 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>, 2010. */
+
+#include <config.h>
+
+#include <math.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (logp1, double, (double));
+
+#include <float.h>
+
+#include "macros.h"
+
+#define DOUBLE double
+#define HUGEVAL HUGE_VAL
+#define L_(literal) literal
+#define MANT_DIG DBL_MANT_DIG
+#define LOG1P logp1
+#define RANDOM randomd
+#include "test-log1p.h"
+
+int
+main ()
+{
+ /* A particular value. */
+ x = 0.6;
+ y = logp1 (x);
+ ASSERT (y >= 0.4700036292 && y <= 0.4700036293);
+
+ test_function ();
+
+ return test_exit_status;
+}