[tkreuzer] 64338: [WIN32K] Fix _FLOATOBJ_IsLong (0 - lMant == 0 / lExp == 0 - was not evaluated as TRUE)

Author: tkreuzer
Date: Sat Sep 27 12:06:03 2014
New Revision: 64338

URL: http://svn.reactos.org/svn/reactos?rev=64338&view=rev
Log:
[WIN32K]
Fix _FLOATOBJ_IsLong (0 - lMant == 0 / lExp == 0 - was not evaluated as TRUE)

Modified:
    trunk/reactos/win32ss/gdi/eng/floatobj.h

Modified: trunk/reactos/win32ss/gdi/eng/floatobj.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/win32ss/gdi/eng/floatobj.h…
==============================================================================
--- trunk/reactos/win32ss/gdi/eng/floatobj.h	[iso-8859-1] (original)
+++ trunk/reactos/win32ss/gdi/eng/floatobj.h	[iso-8859-1] Sat Sep 27 12:06:03 2014
@@ -33,9 +33,11 @@
 _FLOATOBJ_IsLong(FLOATOBJ *pf)
 {
 	EFLOAT_S *pef = (EFLOAT_S*)pf;
-	ULONG Shift = 32 - pef->lExp;
-	if (Shift > 31) return FALSE;
-	return (((pef->lMant >> Shift) << Shift) == pef->lMant);
+	ULONG ulShift = pef->lExp;
+	if (ulShift < 32)
+	    return ((pef->lMant << ulShift) == 0);
+    else
+        return (ulShift == 32);
 }
 
 FORCEINLINE