X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;ds=sidebyside;f=tests%2Ftest-floorf1.c;h=378b994d07819d05c8e7b257c48807e391423733;hb=5e5009f839875220d5dec7abdf5cf53d919f4d42;hp=f0f771624e353416721b601da91706ccb555f94c;hpb=5dad7705e059bd0ce249a736b5af02dd66824ae0;p=gnulib.git

diff --git a/tests/test-floorf1.c b/tests/test-floorf1.c
index f0f771624..378b994d0 100644
--- a/tests/test-floorf1.c
+++ b/tests/test-floorf1.c
@@ -1,5 +1,5 @@
 /* Test of rounding towards negative infinity.
-   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+   Copyright (C) 2007-2011 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
@@ -28,40 +28,51 @@ SIGNATURE_CHECK (floorf, float, (float));
 #include "nan.h"
 #include "macros.h"
 
+/* 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 (!signbit (floorf (0.0f)));
-  ASSERT (floorf (minus_zerof) == 0.0f);
-  ASSERT (!!signbit (minus_zerof) == !!signbit (floorf (minus_zerof)));
+  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 (1.0f / 0.0f) == 1.0f / 0.0f);
+  ASSERT (my_floorf (-1.0f / 0.0f) == -1.0f / 0.0f);
   /* NaNs.  */
-  ASSERT (isnanf (floorf (NaNf ())));
+  ASSERT (isnanf (my_floorf (NaNf ())));
 
   return 0;
 }