maint: update copyright

[gnulib.git] / tests / test-floor2.c

diff --git a/tests/test-floor2.c b/tests/test-floor2.c
index 1aca8ab..c8fc7d4 100644 (file)
--- a/tests/test-floor2.c
+++ b/tests/test-floor2.c
@@ -1,5 +1,5 @@
 /* Test of rounding towards negative infinity.
-   Copyright (C) 2007-2010 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
@@ -31,6 +31,12 @@
 #include "isnand-nolibm.h"
 #include "macros.h"
 
+/* MSVC with option -fp:strict refuses to compile constant initializers that
+   contain floating-point operations.  Pacify this compiler.  */
+#ifdef _MSC_VER
+# pragma fenv_access (off)
+#endif
+
 
 /* The reference implementation, taken from lib/floor.c.  */
 
@@ -63,8 +69,12 @@ floor_reference (DOUBLE x)
 
   if (z > L_(0.0))
     {
+      /* For 0 < x < 1, return +0.0 even if the current rounding mode is
+         FE_DOWNWARD.  */
+      if (z < L_(1.0))
+        z = L_(0.0);
       /* Avoid rounding errors for values near 2^k, where k >= MANT_DIG-1.  */
-      if (z < TWO_MANT_DIG)
+      else if (z < TWO_MANT_DIG)
         {
           /* Round to the next integer (nearest or up or down, doesn't matter).  */
           z += TWO_MANT_DIG;
@@ -140,7 +150,7 @@ check (double x)
 int
 main ()
 {
-#if UINT64_MAX
+#ifdef UINT64_MAX
   unsigned int highbits;
   unsigned int lowbits;
   int error = 0;