From 6a928b1280347619718c7faa86623123fbc34f30 Mon Sep 17 00:00:00 2001
From: Rob Conde <rconde01@hotmail.com>
Date: Tue, 6 Sep 2016 13:14:59 -0400
Subject: [PATCH] - fix Issue 13 where opening a file would throw an exception
 if the stream was set to throw exceptions on error

---
 core/lib/FileHandling/FFStream.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/core/lib/FileHandling/FFStream.cpp b/core/lib/FileHandling/FFStream.cpp
index 7e6af0615..875de68f7 100644
--- a/core/lib/FileHandling/FFStream.cpp
+++ b/core/lib/FileHandling/FFStream.cpp
@@ -112,7 +112,12 @@ namespace gpstk
    void FFStream ::
    init( const char* fn, std::ios::openmode mode )
    {
-      close();
+      //close will fail if the stream is not currently open
+      //This will throw an exception is the fstream is set to
+      //throw exceptions on failures (exceptions(ifstream::failbit))
+      if(is_open())
+         close();
+      
       clear();
       filename = std::string(fn);
       recordNumber = 0;