OpenEuphoria

Re: Strange behavior in sequence handling

• Posted by aku at inbox.as May 07, 2001
• 449 views

Very Error:

sequence L
L = {'a', 'b', 'z'}
L[1] = L
L[1][1] = L
?L

In EX.EXE:
{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{
{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{
{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{
{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{
{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{
CauseWay DOS Extender v3.45 Copyright 1992-99 Michael Devore.
All rights reserved.

Exception: 0E, Error code: 0006

EAX=FFD1AB60 EBX=00000000 ECX=00000042 EDX=C600077B ESI=00000197
EDI=0000007B EBP=8380EC4C ESP=8380EC1C EIP=837FCCCF EFL=00010286

CS=018F-7C822000 DS=0197-7C822000 ES=0197-7C822000
FS=0000-xxxxxxxx GS=019F-xxxxxxxx SS=0197-7C822000

CR0=00000000 CR2=00000000 CR3=00000000 TR=0000

Info flags=00008018

Writing CW.ERR file....

CauseWay error 09 : Unrecoverable exception. Program terminated.

----------------------------------------
In EXW.exe:

EXW caused an invalid page fault in
module EXW.EXE at 0177:0040cd63.
Registers:
EAX=00000001 CS=0177 EIP=0040cd63 EFLGS=00010287
EBX=800b0196 SS=017f ESP=0055fffc EBP=0056fc46
ECX=00580cf8 DS=017f ESI=00000043 FS=267f
EDX=0041fce8 ES=017f EDI=00580cb0 GS=0000
Bytes at CS:EIP:
e8 a8 fe ff ff 83 3d 90 3d 42 00 ff 0f 84 98 00
Stack dump:

>
H> I'm a newcomer to Euphoria but I immediately found it interesting enough to
spend the few bucks that entitle you as a
registered supporter. BTW are there Euphoria T-shirts or something?

H> Now let's come to my first contribution (ahem) to this forum.

H> Can somebody try the following and tell me if he/she gets the same weird
behavior:

H> sequence L
H> with trace
H> trace(1)
H> -- OK
H> L = {'a', 'b', 'z'}
H> L = {L, 1, 2}
H> L = {L, 4, 5}
H> -- probably OK all along the line

H> -- Weird
H> L = {'a', 'b', 'z'}
H> L[1] = L                -- Still OK
H> L[1][1] = L     -- Wow! Is this LISP or Prolog or something?
H> trace(0)

H> It might be that I missed a subtlety of the language (I'm a newbie after
all), but I would rather suspect that Euphoria
has trapped itself in some of its optimizations in the internal
H> representation of sequences, somewhere deep down in its guts.

H> Anyway have a nice day, all of you!

H> Henri from Belgium

H> PS: I apologize for my pidgin English. My mother tongue is French. So let's
all talk Euphorian.