Top-level Command |  | ToC | DocOverview | CGDoc | RelNotes | FAQ | Index | PermutedIndex
| Allegro CL version 9.0 Unrevised from 8.2 to 9.0. 8.2 version

## :ldb

Arguments: &optional mode

This command controls the installing (enabling) and uninstalling (disabling) of breakpoints, and the establishment of ldb mode. The functional equivalent is the with-breakpoints-installed macro.

When given no arguments, this command prints the current mode. When given `t` as an argument, ldb mode is entered, and when given `nil`, an attempt is made to quit ldb-mode.

Note that in order to do stepping (see :step), you must be at a breakpoint.

See The Lisp DeBug (ldb) stepper in debugging.htm for information on ldb stepping. See top-level.htm for more information on top-level commands.

Copyright (c) 1998-2019, Franz Inc. Oakland, CA., USA. All rights reserved.
This page was not revised from the 8.2 page.
Created 2012.5.30.

|  | ToC | DocOverview | CGDoc | RelNotes | FAQ | Index | PermutedIndex
| Allegro CL version 9.0 Unrevised from 8.2 to 9.0. 8.2 version