X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FSupport%2FIsInf.cpp;h=d6da0c99e8d8d64e65fbaa80f1c68e8c82d6201f;hb=0eeca440469e23f2db2bea3d7b136f0f95f6ff1d;hp=e2943b05b58ddabeb313e1dcc6885e0da9914f97;hpb=9437db4e785b973efa622c45b586fafb88b47079;p=oota-llvm.git

diff --git a/lib/Support/IsInf.cpp b/lib/Support/IsInf.cpp
index e2943b05b58..d6da0c99e8d 100644
--- a/lib/Support/IsInf.cpp
+++ b/lib/Support/IsInf.cpp
@@ -1,10 +1,14 @@
 //===-- IsInf.cpp - Platform-independent wrapper around C99 isinf() -------===//
-// 
+//
 //                     The LLVM Compiler Infrastructure
 //
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
-// 
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Platform-independent wrapper around C99 isinf()
+//
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Config/config.h"
@@ -26,16 +30,20 @@ static int isinf(double x) { return !finite(x) && x==x; }
 #define isinf(X) (!_finite(X))
 #elif defined(_AIX) && defined(__GNUC__)
 // GCC's fixincludes seems to be removing the isinf() declaration from the
-// system header /usr/include/math.h 
+// system header /usr/include/math.h
 # include <math.h>
 static int isinf(double x) { return !finite(x) && x==x; }
+#elif defined(__hpux)
+// HP-UX is "special"
+#include <math.h>
+static int isinf(double x) { return ((x) == INFINITY) || ((x) == -INFINITY); }
 #else
 # error "Don't know how to get isinf()"
 #endif
 
 namespace llvm {
 
-int IsInf (float f)  { return isinf (f); }
-int IsInf (double d) { return isinf (d); }
+int IsInf(float f)  { return isinf(f); }
+int IsInf(double d) { return isinf(d); }
 
-}; // end namespace llvm;
+} // end namespace llvm;