		Search-engine friendly clone of the ACL2 documentation.

Expression-binary

Change-expression-binary

Modifying constructor for expression-binary structures.

Syntax

(change-expression-binary x 
                          [:operator <operator>] 
                          [:left-operand <left-operand>] 
                          [:right-operand <right-operand>])

This is an often useful alternative to make-expression-binary.

We construct a new expression-binary structure that is a copy of x, except that you can explicitly change some particular fields. Any fields you don't mention just keep their values from x.

Definition

This is an ordinary change- macro introduced by fty::defprod.

Macro: change-expression-binary

(defmacro change-expression-binary (x &rest args)
  (std::change-aggregate
       'expression-binary
       x args
       '((:operator . expression-binary->operator)
         (:left-operand . expression-binary->left-operand)
         (:right-operand . expression-binary->right-operand))
       'change-expression-binary
       'nil))