Re: Calling C-r with Prefix Argument

[Daniel Martín]

Christopher Dimech <dimech@gmx.com> writes:
>
>    Tried to see the documentation for Prefix Argument but has not helped
>    me for the command C-r.
>

This is the part of the Emacs manual (under "7.10 Numeric Arguments")
that describes how a prefix argument changes the meaning of a command
like C-r:

   Some commands care whether there is an argument, but ignore its
value.  For example, the command ‘M-q’ (‘fill-paragraph’) fills text;
with an argument, it justifies the text as well.  (*Note Filling::, for
more information on ‘M-q’.)  For these commands, it is enough to specify
the argument with a single ‘C-u’.