Imported Upstream version 4.5.14

[platform/upstream/findutils.git] / tests / test-math.c

diff --git a/tests/test-math.c b/tests/test-math.c
index 8565925..f3975ee 100644 (file)
--- a/tests/test-math.c
+++ b/tests/test-math.c
@@ -1,5 +1,5 @@
 /* Test of <math.h> substitute.
-   Copyright (C) 2007-2011 Free Software Foundation, Inc.
+   Copyright (C) 2007-2014 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
@@ -25,6 +25,35 @@
 choke me
 #endif
 
+#ifndef HUGE_VALF
+# error HUGE_VALF should be defined
+choke me
+#endif
+
+#ifndef HUGE_VAL
+# error HUGE_VAL should be defined
+choke me
+#endif
+
+#ifndef HUGE_VALL
+# error HUGE_VALL should be defined
+choke me
+#endif
+
+#ifndef FP_ILOGB0
+# error FP_ILOGB0 should be defined
+choke me
+#endif
+
+#ifndef FP_ILOGBNAN
+# error FP_ILOGBNAN should be defined
+choke me
+#endif
+
+#include <limits.h>
+
+#include "macros.h"
+
 #if 0
 /* Check that NAN expands into a constant expression.  */
 static float n = NAN;
@@ -34,7 +63,17 @@ static float n = NAN;
    This is a separate function because IRIX 6.5 "cc -O" miscompiles an
    'x == x' test.  */
 static int
-numeric_equal (double x, double y)
+numeric_equalf (float x, float y)
+{
+  return x == y;
+}
+static int
+numeric_equald (double x, double y)
+{
+  return x == y;
+}
+static int
+numeric_equall (long double x, long double y)
 {
   return x == y;
 }
@@ -44,10 +83,22 @@ main (void)
 {
   double d = NAN;
   double zero = 0.0;
-  if (numeric_equal (d, d))
-    return 1;
+  ASSERT (!numeric_equald (d, d));
+
   d = HUGE_VAL;
-  if (!numeric_equal (d, 1.0 / zero))
-    return 1;
+  ASSERT (numeric_equald (d, 1.0 / zero));
+
+  ASSERT (numeric_equalf (HUGE_VALF, HUGE_VALF + HUGE_VALF));
+
+  ASSERT (numeric_equald (HUGE_VAL, HUGE_VAL + HUGE_VAL));
+
+  ASSERT (numeric_equall (HUGE_VALL, HUGE_VALL + HUGE_VALL));
+
+  /* Check the value of FP_ILOGB0.  */
+  ASSERT (FP_ILOGB0 == INT_MIN || FP_ILOGB0 == - INT_MAX);
+
+  /* Check the value of FP_ILOGBNAN.  */
+  ASSERT (FP_ILOGBNAN == INT_MIN || FP_ILOGBNAN == INT_MAX);
+
   return 0;
 }