From 84a00830b1c082368ad1de09ea1fbfdceff6024e Mon Sep 17 00:00:00 2001
From: Ian Bell <ian.h.bell@gmail.com>
Date: Fri, 30 Sep 2016 00:51:53 -0600
Subject: [PATCH] Slightly nicer error message

---
 include/CPnumerics.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/CPnumerics.h b/include/CPnumerics.h
index ca7b60a6..405fe4f1 100644
--- a/include/CPnumerics.h
+++ b/include/CPnumerics.h
@@ -126,7 +126,7 @@ template <typename T> void bisect_vector(const std::vector<T> &vec, T val, std::
                 L = MR; rL = vec[MR] - val;
             }
             else{
-                throw CoolProp::ValueError(format("Unable to bisect segmented vector; neither chunk contains the solution %g %g %g %g", rL, rML, rMR, rR));
+                throw CoolProp::ValueError(format("Unable to bisect segmented vector; neither chunk contains the solution val:%g left:(%g,%g) right:(%g,%g)", val, vec[L], vec[ML], vec[MR], vec[R]));
             }
             M = (L+R)/2;
         }
@@ -196,7 +196,7 @@ template <typename T> void bisect_segmented_vector_slice(const std::vector<std::
                 L = MR; rL = mat[MR][j] - val;
             }
             else{
-                throw CoolProp::ValueError(format("Unable to bisect segmented vector slice; neither chunk contains the solution %g %g %g %g", rL,rML,rMR,rR));
+                throw CoolProp::ValueError(format("Unable to bisect segmented vector slice; neither chunk contains the solution %g lef:(%g,%g) right:(%g,%g)", val, mat[L][j], mat[ML][j], mat[MR][j], mat[R][j]));
             }
             M = (L+R)/2;
         }