Stack added + found bugs squashed

sequential/vector.hpp

@@ -12,6 +12,13 @@ private:
 public:
 	void Resize(std::size_t const newSize)
 	{
+		if(newSize == 0ul)
+		{
+			std::free(data);
+			data = nullptr;
+			return;
+		}
+
 		void * result = std::realloc(data, newSize * sizeof(T));
 		if(result == nullptr)
 		{