4.3 The Definition of mark-whole-buffer

The mark-whole-buffer function is no harder to understand than the simplified-beginning-of-buffer function. In this case, however, we will look at the complete function, not a shortened version.

The mark-whole-buffer function is not as commonly used as the beginning-of-buffer function, but is useful nonetheless: it marks a whole buffer as a region by putting point at the beginning and a mark at the end of the buffer. It is generally bound to C-x h.