OpenEuphoria

bug in SOMETHING?!

• Posted by tubby.toast at ntlworld.com Feb 11, 2002
• 539 views

I have code a bit like this

a=allocate_string("blah")
err=c_func(functionname,{a})  --err<0 on error, 0 on success
free(a)

The code works fine on my Celeron/433 running Windows 98, whatever I do.  It
works fine on my Windows 95 486-SX/50 too - unless I bind it with shrouding
enabled.  err then shows an error.  However, if I then comment out the
free(a) line, err shows success.

Now why should this be?  Euphoria seems to be executing the third line
before the second in some circumstances.

So I forced the program to check that functionname had been executed by
checking for the value of err before freeing a:

a=allocate_string("blah")
err=c_func(functionname,{a})
if err then end if  --check value of err
free(a)

and everything works fine.  But this has taken days to track down.

So is this a bug in
a) my code
b) Euphoria
c) Windows 95
d) the 486 chip
e) something else?

chrissy.