--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/BEDTools-Version-2.14.3/src/utils/bedGraphFile/bedGraphFile.cpp	Thu Nov 03 10:25:04 2011 -0400
@@ -0,0 +1,58 @@
+/*****************************************************************************
+  bedGraphFile.cpp
+
+  (c) 2010 - Assaf Gordon
+  Hall Laboratory
+  Department of Biochemistry and Molecular Genetics
+  University of Virginia
+  aaronquinlan@gmail.com
+
+  Licenced under the GNU General Public License 2.0 license.
+******************************************************************************/
+#include "bedGraphFile.h"
+#include <sstream>
+
+// Constructor
+BedGraphFile::BedGraphFile(string &_file) :
+    bedGraphFile(_file),
+    _bedGraphStream(NULL)
+{}
+
+
+// Destructor
+BedGraphFile::~BedGraphFile() {
+    Close();
+}
+
+
+// Open the BEDGRAPH file
+void BedGraphFile::Open() {
+    if (bedGraphFile == "stdin" || bedGraphFile == "-") {
+        _bedGraphStream = &cin;
+    }
+    else {
+        _bedGraphStream = new ifstream(bedGraphFile.c_str(), ios::in);
+
+        if (isGzipFile(_bedGraphStream) == true) {
+            delete _bedGraphStream;
+            _bedGraphStream = new igzstream(bedGraphFile.c_str(), ios::in);
+        }
+        // can we open the file?
+        if ( !(_bedGraphStream->good()) ) {
+            cerr << "Error: The requested bed file (" << bedGraphFile << ") could not be opened. Exiting!" << endl;
+            exit (1);
+        }
+    }
+}
+
+
+// Close the BEDGRAPH file
+void BedGraphFile::Close() {
+    if (bedGraphFile != "stdin" && bedGraphFile != "-") {
+        if (_bedGraphStream) {
+            delete _bedGraphStream;
+            _bedGraphStream = NULL ;
+        }
+    }
+}
+