--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/egglib/egglib-2.1.5/include/egglib-cpp/CharMatrix.hpp	Wed Feb 07 22:08:47 2018 -0500
@@ -0,0 +1,70 @@
+/*
+    Copyright 2009 Stéphane De Mita, Mathieu Siol
+
+    This file is part of the EggLib library.
+
+    EggLib is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    EggLib is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with EggLib.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef EGGLIB_CHARMATRIX_HPP
+#define EGGLIB_CHARMATRIX_HPP
+
+
+namespace egglib {
+
+    /** \brief Interface for classes usable as a square matrix of characters
+    *
+    * \ingroup core
+    *
+    */
+    class CharMatrix {
+    
+    public:
+    
+        /** \brief Gets number of rows or sequences
+         * 
+         */
+        virtual unsigned int numberOfSequences() const = 0;
+
+
+        /** \brief Gets number of columns or sites
+         * 
+         */
+        virtual unsigned int numberOfSites() const = 0;
+        
+        
+        /** \brief Gets the character at a given position
+         * 
+         * The accessor should be "fast" and does not guarantee to
+         * perform out-of-bounds checks
+         * 
+         */
+        virtual char character(unsigned int sequence, unsigned int site) const = 0;
+        
+        
+       /** \brief Gets population index
+        * 
+        */
+        virtual unsigned int populationLabel(unsigned int row) const = 0;
+        
+        
+       /** \brief Get site position
+        * 
+        */
+        virtual double sitePosition(unsigned int column) const = 0;
+
+    };
+}
+
+#endif