Macro

Summary

Provides a way to check whether there was any "modification" during execution of a body of code.

Package

system

Signature

with-modification-change modification-place &body body

Arguments

modification-place

A place as defined in Common Lisp which can receive a fixnum.

body

Lisp code

Description

The macro with-modification-change, together with the macro with-modification-check-macro, provides a way for a body of code to execute and check whether there was any "modification" during this execution, where modification is execution of some other piece of code.

See Aids for implementing modification checks for the full description and an example.

Notes

modification-place does not need to be one of the places defined for low level atomic operations.

See also

with-modification-check-macro