Function: decf

decf is a function alias for cl-decf, defined in cl-lib.el.gz.

This macro is obsolete since 27.1; use cl-decf instead.

Signature

(decf PLACE &optional X)

Documentation

Decrement PLACE by X (1 by default).

PLACE may be a symbol, or any generalized variable allowed by setf. The return value is the decremented value of PLACE.

If X is specified, it should be an expression that should evaluate to a number.

Aliases

decf (obsolete since 27.1)