OpenEuphoria

Interesting Problem

• Posted by jessedavis Apr 20, 2010
• 1459 views

This started out with many lines of code. The problem is that I get a machine level error. The error handler points to the switch statement. I removed one line of code at a time to get to what you see. Remove ANY line of code and the problem disappears. Change the order of the lines and the problem disappears. If anyone is interested I can send the error file. The japi.e include file is a euphoria wrapper for GUI code from www.japi.de via rapideuphoria's archive. Euphoria 4.0 Ubuntu 9.xx It smells like a pointer or stack problem. Also note that if you replace the symbol btn in the case statement with its value (integer 4) the problem goes away.

Any thoughts? regards, jd

#! /home/jd/euphoria/bin/eui  
include japi.e as j 
include std/pretty.e as pe 
 
 
	if( j:j_start() = j:J_FALSE ) then		--sets up the engine 
	    puts(1,"can't connect to JAPI server") 
	    abort(1) 
	end if 
 
constant win1 = j:j_frame("Manage Categories") 
 
constant btn = j:j_button(win1,"SAVE") 
 
--j:j_show(win1) 
 
integer obj = 2		--values 2 & 3 do not work others do work <<-------------- 
sequence values 
 
values = {win1,btn}		--no effect on operation diagnostics only 
pe:pretty_print(1,values,{})	--no effect on operation diagnostics only 
 
	switch obj do		--this is line number 23 
		case 1 then 
 
		case btn then 
 
		case else 
 
	end switch 

The terminal output follows:

./test1.ex:23 
A machine-level exception occurred during execution of this statement