From 3e4d4313183c36ab11602da2582e6b14b5f3b62c Mon Sep 17 00:00:00 2001
From: Ian Bell <ian.h.bell@gmail.com>
Date: Sat, 12 Jul 2014 15:08:28 -0400
Subject: [PATCH] Fix REFPROP wrapper to allow use of pseudo-pure fluids

Signed-off-by: Ian Bell <ian.h.bell@gmail.com>
---
 src/Backends/REFPROP/REFPROPMixtureBackend.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/Backends/REFPROP/REFPROPMixtureBackend.cpp b/src/Backends/REFPROP/REFPROPMixtureBackend.cpp
index fbc41ef1..ad1db0a0 100644
--- a/src/Backends/REFPROP/REFPROPMixtureBackend.cpp
+++ b/src/Backends/REFPROP/REFPROPMixtureBackend.cpp
@@ -552,14 +552,14 @@ void REFPROPMixtureBackend::set_REFPROP_fluids(const std::vector<std::string> &f
             }
             else if (ierr > 0) // Error
             {
-                if (k==0 && N > 1)
+                if (k==0 && N == 1)
                     continue; // Allow us to use PPF if a pure fluid
                 else
-                    throw ValueError(format("%s",herr));
+                    throw ValueError(format("%s", herr));
             }
             else // Warning
             {
-                throw ValueError(format("%s",herr));
+                throw ValueError(format("%s", herr));
             }
         }
     }