From 5e7df8cd234d78eac326b883e194ae1441816ae1 Mon Sep 17 00:00:00 2001
From: Richard Roberts <richard.jw.roberts@gmail.com>
Date: Mon, 24 Dec 2012 19:56:58 +0000
Subject: [PATCH] Corrected return type of our versions of isfinite, isnan, and
 isinf (which use the boost implementations when the libc versions are not
 present)

---
 gtsam/base/types.h | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/gtsam/base/types.h b/gtsam/base/types.h
index 6d4cb192f..88e59507c 100644
--- a/gtsam/base/types.h
+++ b/gtsam/base/types.h
@@ -85,13 +85,16 @@ namespace gtsam {
 
 #ifdef _MSC_VER
 
-// Define some common g++ functions and macros that MSVC does not have
+// Define some common g++ functions and macros we use that MSVC does not have
 
 #include <boost/math/special_functions/fpclassify.hpp>
 namespace std {
-  using boost::math::isfinite;
-  using boost::math::isnan;
-  using boost::math::isinf;
+  template<typename T> inline int isfinite(T a) {
+    return (int)boost::math::isfinite(a); }
+  template<typename T> inline int isnan(T a) {
+    return (int)boost::math::isnan(a); }
+  template<typename T> inline int isinf(T a) {
+    return (int)boost::math::isinf(a); }
 }
 
 #include <boost/math/constants/constants.hpp>