an example of how to make a new genotype within EO - see HTML doc

eo/tutorial/Lesson5/eoOneMax.h

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+/** -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
+
+The above line is usefulin Emacs-like editors
+ */
+
+/*
+Template for creating a new representation in EO
+================================================
+*/
+
+#ifndef _eoOneMax_h
+#define _eoOneMax_h
+
+/** 
+ *  Always write a comment in this format before class definition
+ *  if you want the class to be documented by Doxygen
+
+ * Note that you MUST derive your structure from EO<fitT>
+ * but you MAY use some other already prepared class in the hierarchy
+ * like eoVector for instance, if you handle a vector of something....
+
+ * If you create a structure from scratch,
+ * the only thing you need to provide are 
+ *        a default constructor
+ *        IO routines printOn and readFrom
+ *
+ * Note that operator<< and operator>> are defined at EO level
+ * using these routines
+ */
+template< class FitT>
+class eoOneMax: public EO<FitT> {
+public:
+  /** Ctor: you MUST provide a default ctor.
+   * though such individuals will generally be processed 
+   * by some eoInit object
+   */
+  eoOneMax() 
+  { 
+    // START Code of default Ctor of an eoOneMax object
+    // END   Code of default Ctor of an eoOneMax object
+  }
+
+  virtual ~eoOneMax()
+  {
+    // START Code of Destructor of an eoEASEAGenome object
+    // END   Code of Destructor of an eoEASEAGenome object
+  }
+
+  virtual string className() const { return "eoOneMax"; }
+
+  /** printing... */
+    void printOn(ostream& _os) const
+    {
+      // First write the fitness
+      EO<FitT>::printOn(_os);
+      _os << ' ';
+    // START Code of default output 
+
+	/** HINTS
+	 * in EO we systematically write the sizes of things before the things
+	 * so readFrom is easier to code (see below)
+	 */
+      _os << b.size() << ' ' ;
+      for (unsigned i=0; i<b.size(); i++)
+	_os << b[i] << ' ' ;
+    // END   Code of default output
+    }
+
+  /** reading... 
+   * of course, your readFrom must be able to read what printOn writes!!!
+   */
+  void readFrom(istream& _is)
+  {
+    // of course you should read the fitness first!
+    EO<FitT>::readFrom(_is);
+    // START Code of input
+
+    /** HINTS
+     * remember the eoOneMax object will come from the default ctor
+     * this is why having the sizes written out is useful
+     */
+    unsigned s;
+    _is >> s;
+    b.resize(s);
+    for (unsigned i=0; i<s; i++)
+      {
+	bool bTmp;
+	_is >> bTmp;
+	b[i] = bTmp;
+      }			
+    // END   Code of input
+  }
+
+  // accessing and setting values
+  void setB(vector<bool> & _b)
+  {
+    b=_b;
+  }
+  const vector<bool> & B()
+  {
+    return b;
+  }
+
+private:			   // put all data here
+    // START Private data of an eoOneMax object
+  std::vector<bool> b;
+    // END   Private data of an eoOneMax object
+};
+
+#endif
+