Above comment indented with two spaces to preserve asterisks: No, image is an Image*, so *image is an Image, so sizeof(*image) is the amount of memory you

Above comment indented with two spaces to preserve asterisks: No, image is an Image*, so *image is an Image, so sizeof(*image) is the amount of memory you need to allocate for an Image. Saying sizeof(*image) rather than sizeof(Image) allows you to change the type of image in one fewer place, should you want to do that.