- strncpy (new_tree, pfx, (start_depth - 1) * width);
- strfcpy (new_tree + (start_depth - 1) * width,
- arrow, (1 + depth - start_depth) * width + 2);
+ memcpy(new_tree, pfx, (start_depth - 1) * width);
+ m_strcpy(new_tree + (start_depth - 1) * width,
+ (1 + depth - start_depth) * width + 2, arrow);