From 4bd52bfe7a6cda99a7a0791cbdba32ef7d406a95 Mon Sep 17 00:00:00 2001
From: "Paul A. Bristow" <pbristow@hetp.u-net.com>
Date: Thu, 20 Sep 2007 11:37:57 +0000
Subject: [PATCH] Changechanged to use if((boost::math::isinf)(x)) {   if(x <
 0) return 0;   return 1; }  to get rid of 4127 warnings

but still need to supress 4127


[SVN r39402]
---
 include/boost/math/distributions/cauchy.hpp | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/include/boost/math/distributions/cauchy.hpp b/include/boost/math/distributions/cauchy.hpp
index cc5766d2d..34e04eedb 100644
--- a/include/boost/math/distributions/cauchy.hpp
+++ b/include/boost/math/distributions/cauchy.hpp
@@ -206,11 +206,16 @@ inline RealType pdf(const cauchy_distribution<RealType, Policy>& dist, const Rea
    {
       return result;
    }
-
-   if(std::numeric_limits<RealType>::has_infinity && abs(x) == std::numeric_limits<RealType>::infinity())
-   { // pdf + and - infinity is zero.
-     return 0;
+   if((boost::math::isinf)(x))
+   {
+     return 0; // pdf + and - infinity is zero.
    }
+   // These produce MSVC 4127 warnings, so the above used instead.
+   //if(std::numeric_limits<RealType>::has_infinity && abs(x) == std::numeric_limits<RealType>::infinity())
+   //{ // pdf + and - infinity is zero.
+   //  return 0;
+   //}
+
    if(false == detail::check_x(function, x, &result, Policy()))
    { // Catches x = NaN
       return result;