School Commit Init

Anul 1/Semestrul 2/Data structures/Lab 4/MapIterator.cpp

@@ -0,0 +1,55 @@
+#include "Map.h"
+#include "MapIterator.h"
+#include <exception>
+using namespace std;
+
+
+MapIterator::MapIterator(const Map& d) : map(d)
+{
+	//O(1)
+	this->_current=0;
+	while (this->_current<this->map._capacity && this->map._elements[this->_current]==NULL_TELEM)
+	{
+		this->_current++;
+	}
+	this->_first=this->_current;
+}
+
+
+void MapIterator::first() {
+	//O(1)
+	this->_current=this->_first;
+}
+
+
+void MapIterator::next() {
+	//O(1)
+	if(this->valid()){	
+		this->_current++;
+		while (this->_current<this->map._capacity && this->map._elements[this->_current]==NULL_TELEM)
+		{
+			this->_current++;
+		}
+	}
+	else
+		throw exception();
+}
+
+
+TElem MapIterator::getCurrent(){
+	//O(1)
+	if(this->valid())
+		return this->map._elements[this->_current];
+	throw exception();
+}
+
+
+bool MapIterator::valid() const {
+	//O(1)
+	if(this->_current<this->map._capacity && this->map._elements[this->_current]!=NULL_TELEM)
+		return true;
+	return false;
+}
+
+
+