Function: backward-char
backward-char is an interactive function defined in cmds.c.
Signature
(backward-char &optional N)
Documentation
Move point N characters backward (forward if N is negative).
On attempt to pass beginning or end of buffer, stop and signal error. Interactively, N is the numeric prefix argument. If N is omitted or nil, move point 1 character backward.
Depending on the bidirectional context, the movement may be to the
right or to the left on the screen. This is in contrast with
<left> (left-char), which see.
Probably introduced at or before Emacs version 19.23.
Key Bindings
Source Code
// Defined in /usr/src/emacs/src/cmds.c
{
return move_point (n, 0);
}