From 2327d8ff58332c09d82de17b8cdd119d6cef56b4 Mon Sep 17 00:00:00 2001
From: Dan Liew <daniel.liew@imperial.ac.uk>
Date: Wed, 18 Jun 2014 18:42:28 +0100
Subject: Fix bug in BigDec.FromString() which would not parse negative numbers
 correctly.

For example BigDec.FromString("-1.5") would be interpreted as
-0.5 due to the incorrect way the method handles the fractional
part of the string.
---
 Source/Basetypes/BigDec.cs | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'Source/Basetypes')

diff --git a/Source/Basetypes/BigDec.cs b/Source/Basetypes/BigDec.cs
index feabb425..4206b2f2 100644
--- a/Source/Basetypes/BigDec.cs
+++ b/Source/Basetypes/BigDec.cs
@@ -88,7 +88,12 @@ namespace Microsoft.Basetypes {
         }
       }
 
-      return new BigDec(integral + fraction, exponent);
+      if (integral.Sign == -1) {
+        return new BigDec(integral - fraction, exponent);
+      }
+      else {
+        return new BigDec(integral + fraction, exponent);
+      }
     }
 
     internal BigDec(BIM mantissa, int exponent) {
-- 
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