eo: added some missing entries

Pop: error in nth_element_fitness
sga: error in eval
eoParseTree: oddities with gcc
checkpointing: added eoParser and eoState
eoParser: support for wrongly entered parameter names
rnd_generators: flip(0.5) -> flip(bias) in binary_generator
selectors.h: ???

eo/src/utils/checkpointing

@@ -1,4 +1,6 @@
 
+#include <utils/eoParser.h>
+#include <utils/eoState.h>
 #include <utils/eoUpdater.h>
 #include <utils/eoMonitor.h>
 #include <utils/eoFileMonitor.h>

eo/src/utils/eoParser.cpp

@@ -63,7 +63,7 @@ void eoParser::doRegisterParam(eoParam& param) const
 {
     if (param.required() && !isItThere(param))
     {
-        string msg = "required parameter: " + param.longName() + " missing";
+        string msg = "Required parameter: " + param.longName() + " missing";
         messages.push_back(msg);
     }
 
@@ -274,3 +274,56 @@ void eoParser::printHelp(ostream& os)
     os << '\n';
 
 }
+
+bool eoParser::userNeedsHelp(void) 
+{
+    /* 
+      check whether there are long or short names entered 
+      without a corresponding parameter
+    */
+
+    for (LongNameMapType::const_iterator lIt = longNameMap.begin(); lIt != longNameMap.end(); ++lIt)
+    {
+        string entry = lIt->first;
+
+        MultiMapType::const_iterator it;
+
+        for (it = params.begin(); it != params.end(); ++it)
+        {
+            if (entry == it->second->longName())
+            {
+                break;
+            }
+        }
+
+        if (it == params.end())
+        {
+            string msg = "Unknown parameter: --" + entry + " entered, type -h or --help to see available parameters";
+            messages.push_back(msg);
+        }
+    }
+
+    for (ShortNameMapType::const_iterator sIt = shortNameMap.begin(); sIt != shortNameMap.end(); ++sIt)
+    {
+        char entry = sIt->first;
+
+        MultiMapType::const_iterator it;
+
+        for (it = params.begin(); it != params.end(); ++it)
+        {
+            if (entry == it->second->shortName())
+            {
+                break;
+            }
+        }
+
+        if (it == params.end())
+        {
+            string entryString(1, entry);
+            string msg = "Unknown parameter: -" + entryString + " entered, type -h or --help to see available parameters";
+            messages.push_back(msg);
+        }
+    }
+
+    return needHelp.value() || !messages.empty(); 
+}

eo/src/utils/eoParser.h

@@ -127,8 +127,7 @@ public:
   std::string className(void) const { return "Parser"; }
 
   /// true if the user made an error or asked for help
-  bool userNeedsHelp(void) const { return needHelp.value() || !messages.empty(); }
-
+  bool userNeedsHelp(void); 
   /**
    * Prints an automatic help in the specified output using the information
    * provided by parameters
@@ -148,14 +147,18 @@ private:
   void updateParameters() const;
   
   typedef std::multimap<std::string, eoParam*> MultiMapType;
-  
+
+  // used to store all parameters that are processed
   MultiMapType params;
   
   string programName; 
   string programDescription;
 
-  map<char, string>   shortNameMap;
-  map<string, string> longNameMap;
+  typedef map<char, string> ShortNameMapType;
+  ShortNameMapType shortNameMap;
+  
+  typedef map<string, string> LongNameMapType;
+  LongNameMapType longNameMap;
 
   eoValueParam<bool>   needHelp;
 

eo/src/utils/rnd_generators.h

@@ -58,7 +58,7 @@ class boolean_generator
   public :
     boolean_generator(float _bias = 0.5, eoRng& _rng = rng) : bias(_bias), gen(_rng) {}
   
-  bool operator()(void) { return gen.flip(0.5); } 
+  bool operator()(void) { return gen.flip(bias); } 
   private :
   float bias;
   eoRng& gen;

eo/src/utils/selectors.h

@@ -209,7 +209,7 @@ It inverse_deterministic_tournament(It _begin, It _end, unsigned _t_size, eoRng&
 {
     It worst = _begin + _gen.random(_end - _begin);		
     
-    for (unsigned i = 0; i < _t_size - 1; ++i)
+    for (unsigned i = 1; i < _t_size; ++i)
     {
         It competitor = _begin + _gen.random(_end - _begin);