/* Test of rounding towards negative infinity.
- Copyright (C) 2007-2008 Free Software Foundation, Inc.
+ Copyright (C) 2007-2013 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
#include <math.h>
-#include <stdio.h>
-#include <stdlib.h>
+#include "signature.h"
+SIGNATURE_CHECK (floorf, float, (float));
#include "isnanf-nolibm.h"
+#include "minus-zero.h"
+#include "infinity.h"
#include "nan.h"
+#include "macros.h"
-#define ASSERT(expr) \
- do \
- { \
- if (!(expr)) \
- { \
- fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
- fflush (stderr); \
- abort (); \
- } \
- } \
- while (0)
-
-/* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0f.
- So we use -zero instead. */
-float zero = 0.0f;
+/* If IEEE compliance was not requested, the ICC compiler inlines its
+ own floorf assembly that turns -0.0f to 0.0f; but that is a correct
+ result when IEEE is not enforced. To avoid spurious failure, we
+ have to provide this dummy function in order to outsmart ICC's
+ inlining, and call our floorf through a function pointer. */
+static float
+dummy (float f)
+{
+ return 0;
+}
int
-main ()
+main (int argc, char **argv _GL_UNUSED)
{
+ float (*my_floorf) (float) = argc ? floorf : dummy;
+
/* Zero. */
- ASSERT (floorf (0.0f) == 0.0f);
- ASSERT (floorf (-zero) == 0.0f);
+ ASSERT (my_floorf (0.0f) == 0.0f);
+ ASSERT (my_floorf (minus_zerof) == 0.0f);
/* Positive numbers. */
- ASSERT (floorf (0.3f) == 0.0f);
- ASSERT (floorf (0.7f) == 0.0f);
- ASSERT (floorf (1.0f) == 1.0f);
- ASSERT (floorf (1.5f) == 1.0f);
- ASSERT (floorf (1.999f) == 1.0f);
- ASSERT (floorf (2.0f) == 2.0f);
- ASSERT (floorf (65535.99f) == 65535.0f);
- ASSERT (floorf (65536.0f) == 65536.0f);
- ASSERT (floorf (2.341e31f) == 2.341e31f);
+ ASSERT (my_floorf (0.3f) == 0.0f);
+ ASSERT (my_floorf (0.7f) == 0.0f);
+ ASSERT (my_floorf (1.0f) == 1.0f);
+ ASSERT (my_floorf (1.5f) == 1.0f);
+ ASSERT (my_floorf (1.999f) == 1.0f);
+ ASSERT (my_floorf (2.0f) == 2.0f);
+ ASSERT (my_floorf (65535.99f) == 65535.0f);
+ ASSERT (my_floorf (65536.0f) == 65536.0f);
+ ASSERT (my_floorf (2.341e31f) == 2.341e31f);
/* Negative numbers. */
- ASSERT (floorf (-0.3f) == -1.0f);
- ASSERT (floorf (-0.7f) == -1.0f);
- ASSERT (floorf (-1.0f) == -1.0f);
- ASSERT (floorf (-1.001f) == -2.0f);
- ASSERT (floorf (-1.5f) == -2.0f);
- ASSERT (floorf (-1.999f) == -2.0f);
- ASSERT (floorf (-2.0f) == -2.0f);
- ASSERT (floorf (-65535.99f) == -65536.0f);
- ASSERT (floorf (-65536.0f) == -65536.0f);
- ASSERT (floorf (-2.341e31f) == -2.341e31f);
+ ASSERT (my_floorf (-0.3f) == -1.0f);
+ ASSERT (my_floorf (-0.7f) == -1.0f);
+ ASSERT (my_floorf (-1.0f) == -1.0f);
+ ASSERT (my_floorf (-1.001f) == -2.0f);
+ ASSERT (my_floorf (-1.5f) == -2.0f);
+ ASSERT (my_floorf (-1.999f) == -2.0f);
+ ASSERT (my_floorf (-2.0f) == -2.0f);
+ ASSERT (my_floorf (-65535.99f) == -65536.0f);
+ ASSERT (my_floorf (-65536.0f) == -65536.0f);
+ ASSERT (my_floorf (-2.341e31f) == -2.341e31f);
/* Infinite numbers. */
- ASSERT (floorf (1.0f / 0.0f) == 1.0f / 0.0f);
- ASSERT (floorf (-1.0f / 0.0f) == -1.0f / 0.0f);
+ ASSERT (my_floorf (Infinityf ()) == Infinityf ());
+ ASSERT (my_floorf (- Infinityf ()) == - Infinityf ());
/* NaNs. */
- ASSERT (isnanf (floorf (NaNf ())));
+ ASSERT (isnanf (my_floorf (NaNf ())));
return 0;
}