datatype free

gistfile1.c++

template<class T> class SGVector
{
	public:
		/** default constructor */
		SGVector() : vector(NULL), vlen(0), do_free(false) { }

		/** constructor for setting params */
		SGVector(T* v, index_t len, bool free_vec=false)
			: vector(v), vlen(len), do_free(free_vec) { }

		/** copy constructor */
		SGVector(const SGVector &orig)
			: vector(orig.vector), vlen(orig.vlen) { }

		void free_vector()
		{
			if (do_free)
				delete[] vector;

			vector=NULL;
			do_free=false;
			vlen=0;
		}

	public:
		/** vector  */
		T* vector;
		/** length of vector  */
		index_t vlen;
		/** whether vector needs to be freed */
		bool do_free;
};

template<class T> class SGMatrix
{
	public:
		/** default constructor */
		SGMatrix() : matrix(NULL), num_rows(0), num_cols(0), do_free(false) { }

		/** constructor for setting params */
		SGMatrix(T* m, index_t nrows, index_t ncols, bool free_matrix=false)
			: matrix(m), num_rows(nrows), num_cols(ncols), do_free(free_matrix) { }

		/** copy constructor */
		SGMatrix(const SGMatrix &orig)
			: matrix(orig.matrix), num_rows(orig.num_rows),
			num_cols(orig.num_cols), do_free(free_matrix) { }

		void free_matrix()
		{
			if (do_free)
				delete[] matrix;

			matrix=NULL;
			do_free=false;
			num_rows=0;
			num_cols=0;
		}

	public:
		/** matrix  */
		T* matrix;
		/** number of rows of matrix  */
		index_t num_rows;
		/** number of columns of matrix  */
		index_t num_cols;
		/** whether matrix needs to be freed */
		bool do_free;
};