From 0bd8c940519b088c5b2aee88dd03c69e10916aab Mon Sep 17 00:00:00 2001
From: Bruno Haible <bruno@clisp.org>
Date: Thu, 1 Mar 2012 11:38:42 +0100
Subject: [PATCH] Tests for module 'expf-ieee'.

* modules/expf-ieee-tests: New file.
* tests/test-expf-ieee.c: New file.
* tests/test-exp-ieee.h: New file.
---
 ChangeLog               |  5 +++++
 modules/expf-ieee-tests | 19 +++++++++++++++++++
 tests/test-exp-ieee.h   | 43 +++++++++++++++++++++++++++++++++++++++++++
 tests/test-expf-ieee.c  | 45 +++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 112 insertions(+)
 create mode 100644 modules/expf-ieee-tests
 create mode 100644 tests/test-exp-ieee.h
 create mode 100644 tests/test-expf-ieee.c

diff --git a/ChangeLog b/ChangeLog
index 8525e58a8..b3b9e33af 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,10 @@
 2012-03-01  Bruno Haible  <bruno@clisp.org>
 
+	Tests for module 'expf-ieee'.
+	* modules/expf-ieee-tests: New file.
+	* tests/test-expf-ieee.c: New file.
+	* tests/test-exp-ieee.h: New file.
+
 	New module 'expf-ieee'.
 	* modules/expf-ieee: New file.
 
diff --git a/modules/expf-ieee-tests b/modules/expf-ieee-tests
new file mode 100644
index 000000000..582824cc7
--- /dev/null
+++ b/modules/expf-ieee-tests
@@ -0,0 +1,19 @@
+Files:
+tests/test-expf-ieee.c
+tests/test-exp-ieee.h
+tests/minus-zero.h
+tests/infinity.h
+tests/nan.h
+tests/macros.h
+
+Depends-on:
+isnanf-nolibm
+float
+signbit
+
+configure.ac:
+
+Makefile.am:
+TESTS += test-expf-ieee
+check_PROGRAMS += test-expf-ieee
+test_expf_ieee_LDADD = $(LDADD) @EXPF_LIBM@
diff --git a/tests/test-exp-ieee.h b/tests/test-exp-ieee.h
new file mode 100644
index 000000000..77301b261
--- /dev/null
+++ b/tests/test-exp-ieee.h
@@ -0,0 +1,43 @@
+/* Test of exp*() function family.
+   Copyright (C) 2012 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 <http://www.gnu.org/licenses/>.  */
+
+static void
+test_function (void)
+{
+  /* [MX] shaded specification in POSIX.  */
+
+  /* Underflow.  */
+  {
+    DOUBLE z = EXP (-100000.0);
+    ASSERT (z == L_(0.0));
+    ASSERT (!signbit (z));
+  }
+
+  /* NaN.  */
+  ASSERT (ISNAN (EXP (NAN)));
+
+  /* Zero.  */
+  ASSERT (EXP (L_(0.0)) == L_(1.0));
+  ASSERT (EXP (MINUS_ZERO) == L_(1.0));
+
+  /* Infinity.  */
+  {
+    DOUBLE z = EXP (- INFINITY);
+    ASSERT (z == L_(0.0));
+    ASSERT (!signbit (z));
+  }
+  ASSERT (EXP (INFINITY) == INFINITY);
+}
diff --git a/tests/test-expf-ieee.c b/tests/test-expf-ieee.c
new file mode 100644
index 000000000..34f99db54
--- /dev/null
+++ b/tests/test-expf-ieee.c
@@ -0,0 +1,45 @@
+/* Test of expf() function.
+   Copyright (C) 2012 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 <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+#include <math.h>
+
+#include "isnanf-nolibm.h"
+#include "minus-zero.h"
+#include "infinity.h"
+#include "nan.h"
+#include "macros.h"
+
+#undef INFINITY
+#undef NAN
+
+#define DOUBLE float
+#define ISNAN isnanf
+#define INFINITY Infinityf ()
+#define NAN NaNf ()
+#define L_(literal) literal##f
+#define MINUS_ZERO minus_zerof
+#define EXP expf
+#include "test-exp-ieee.h"
+
+int
+main ()
+{
+  test_function ();
+
+  return 0;
+}
-- 
2.11.0