Ajout de NeighborhoodException

include/neighborhood.hpp

@@ -14,11 +14,22 @@ Cette classe représente le voisinage d'une cellule.
 
 #include <vector>
 #include <utility>
-
+#include <string>
 #include "coord.hpp"
 
 using namespace std;
 
+class NeighborhoodException : public std::exception
+{
+    std::string _msg;
+public:
+    NeighborhoodException(const std::string& msg) : _msg(msg){}
+
+    virtual const char* what() const noexcept override
+    {
+        return _msg.c_str();
+    }
+};
 
 class Neighborhood {
 	//! \brief Vecteur de voisins contenant la position relative et l'état du voisin

src/neighborhood.cpp

@@ -23,7 +23,7 @@ unsigned Neighborhood::getAt(Coord c) const
 		}
 	}
 
-	throw "Error Neighborhood::getAt";
+    throw NeighborhoodException("Error Neighborhood::getAt");
 	//return ERROR;
 }