if(row_pointers_in) delete [] row_pointers_in;
if(row_pointers_out) delete [] row_pointers_out;
if(float_buffer) delete [] float_buffer;
if(row_pointers_in) delete [] row_pointers_in;
if(row_pointers_out) delete [] row_pointers_out;
if(float_buffer) delete [] float_buffer;