|  | ;; Copyright (C) 2014 Free Software Foundation, Inc. | 
|  | ;; | 
|  | ;; This program is free software; you can redistribute it and/or modify | 
|  | ;; it under the terms of the GNU General Public License as published by | 
|  | ;; the Free Software Foundation; either version 3 of the License, or | 
|  | ;; (at your option) any later version. | 
|  | ;; | 
|  | ;; This program is distributed in the hope that it will be useful, | 
|  | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | 
|  | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the | 
|  | ;; GNU General Public License for more details. | 
|  | ;; | 
|  | ;; You should have received a copy of the GNU General Public License | 
|  | ;; along with this program.  If not, see <http://www.gnu.org/licenses/>. | 
|  |  | 
|  | (use-modules (gdb)) | 
|  |  | 
|  | ;; Create a set of functions to call, with the last one having an error, | 
|  | ;; so we can test backtrace printing. | 
|  |  | 
|  | (define foo #f) | 
|  |  | 
|  | (define (top-func x) | 
|  | (+ (middle-func x) 1)) | 
|  |  | 
|  | (define (middle-func x) | 
|  | (+ (bottom-func x) 1)) | 
|  |  | 
|  | (define (bottom-func x) | 
|  | (+ x foo)) |