X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=tests%2Ftest-ceilf1.c;h=c4581c6d2f63ea87c4d08d5c2fa151f444f89366;hb=ca2c85799ac5e86ba2d93a6b0628648177984e21;hp=86bb49e00df99c6651c880a67b3ca9c5c06070a6;hpb=74f73e82d45826c2ba8e533ff3ec75fcf9e17361;p=gnulib.git

diff --git a/tests/test-ceilf1.c b/tests/test-ceilf1.c
index 86bb49e00..c4581c6d2 100644
--- a/tests/test-ceilf1.c
+++ b/tests/test-ceilf1.c
@@ -1,5 +1,5 @@
 /* Test of rounding towards positive 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
@@ -28,38 +28,51 @@ SIGNATURE_CHECK (ceilf, float, (float));
 #include "nan.h"
 #include "macros.h"
 
+/* If IEEE compliance was not requested, the ICC compiler inlines its
+   own ceilf 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 ceilf through a function pointer.  */
+static float
+dummy (float f)
+{
+  return 0;
+}
+
 int
-main ()
+main (int argc, char **argv _GL_UNUSED)
 {
+  float (*my_ceilf) (float) = argc ? ceilf : dummy;
+
   /* Zero.  */
-  ASSERT (ceilf (0.0f) == 0.0f);
-  ASSERT (ceilf (minus_zerof) == 0.0f);
+  ASSERT (my_ceilf (0.0f) == 0.0f);
+  ASSERT (my_ceilf (minus_zerof) == 0.0f);
   /* Positive numbers.  */
-  ASSERT (ceilf (0.3f) == 1.0f);
-  ASSERT (ceilf (0.7f) == 1.0f);
-  ASSERT (ceilf (1.0f) == 1.0f);
-  ASSERT (ceilf (1.001f) == 2.0f);
-  ASSERT (ceilf (1.5f) == 2.0f);
-  ASSERT (ceilf (1.999f) == 2.0f);
-  ASSERT (ceilf (2.0f) == 2.0f);
-  ASSERT (ceilf (65535.99f) == 65536.0f);
-  ASSERT (ceilf (65536.0f) == 65536.0f);
-  ASSERT (ceilf (2.341e31f) == 2.341e31f);
+  ASSERT (my_ceilf (0.3f) == 1.0f);
+  ASSERT (my_ceilf (0.7f) == 1.0f);
+  ASSERT (my_ceilf (1.0f) == 1.0f);
+  ASSERT (my_ceilf (1.001f) == 2.0f);
+  ASSERT (my_ceilf (1.5f) == 2.0f);
+  ASSERT (my_ceilf (1.999f) == 2.0f);
+  ASSERT (my_ceilf (2.0f) == 2.0f);
+  ASSERT (my_ceilf (65535.99f) == 65536.0f);
+  ASSERT (my_ceilf (65536.0f) == 65536.0f);
+  ASSERT (my_ceilf (2.341e31f) == 2.341e31f);
   /* Negative numbers.  */
-  ASSERT (ceilf (-0.3f) == 0.0f);
-  ASSERT (ceilf (-0.7f) == 0.0f);
-  ASSERT (ceilf (-1.0f) == -1.0f);
-  ASSERT (ceilf (-1.5f) == -1.0f);
-  ASSERT (ceilf (-1.999f) == -1.0f);
-  ASSERT (ceilf (-2.0f) == -2.0f);
-  ASSERT (ceilf (-65535.99f) == -65535.0f);
-  ASSERT (ceilf (-65536.0f) == -65536.0f);
-  ASSERT (ceilf (-2.341e31f) == -2.341e31f);
+  ASSERT (my_ceilf (-0.3f) == 0.0f);
+  ASSERT (my_ceilf (-0.7f) == 0.0f);
+  ASSERT (my_ceilf (-1.0f) == -1.0f);
+  ASSERT (my_ceilf (-1.5f) == -1.0f);
+  ASSERT (my_ceilf (-1.999f) == -1.0f);
+  ASSERT (my_ceilf (-2.0f) == -2.0f);
+  ASSERT (my_ceilf (-65535.99f) == -65535.0f);
+  ASSERT (my_ceilf (-65536.0f) == -65536.0f);
+  ASSERT (my_ceilf (-2.341e31f) == -2.341e31f);
   /* Infinite numbers.  */
-  ASSERT (ceilf (1.0f / 0.0f) == 1.0f / 0.0f);
-  ASSERT (ceilf (-1.0f / 0.0f) == -1.0f / 0.0f);
+  ASSERT (my_ceilf (1.0f / 0.0f) == 1.0f / 0.0f);
+  ASSERT (my_ceilf (-1.0f / 0.0f) == -1.0f / 0.0f);
   /* NaNs.  */
-  ASSERT (isnanf (ceilf (NaNf ())));
+  ASSERT (isnanf (my_ceilf (NaNf ())));
 
   return 0;
 }