1. where is my mistake
Why this code doesn't work. Is this an error in my code or because identifiers
are unknown at runtime.
-- msg.e
procedure msg_print(sequence this)
puts(1,this[2])
end procedure
integer rid_msg_print
--rid_msg_print=routine_id("msg_print")
global function new_message(sequence msg)
return {routine_id("rid_msg_print"),msg}
end function
-- test_msg.exw
include msg.e
sequence msg
msg = new_message("bonjour chez-vous\n")
call_proc(msg[1],{msg})
running test_msg.exw result in:
test_msg.exw:6
invalid routine id
--> See ex.err
Jacques Deschênes
2. Re: where is my mistake
jacques deschênes wrote:
>
> Why this code doesn't work.
>
> }}}
<eucode>
> procedure msg_print(sequence this)
> return {routine_id("rid_msg_print"),msg}
> </eucode>
{{{
Delete the "rid_" from the start of the routine name passed to routine_id
Regards,
Pete
3. Re: where is my mistake
jacques deschênes wrote:
>
>
> Why this code doesn't work. Is this an error in my code or because identifiers
> are unknown at runtime.
>
>
> }}}
<eucode>
> -- msg.e
> procedure msg_print(sequence this)
> puts(1,this[2])
> end procedure
>
> integer rid_msg_print
> --rid_msg_print=routine_id("msg_print")
>
> global function new_message(sequence msg)
> return {routine_id("rid_msg_print"),msg}
> end function
>
> </eucode>
{{{
>
> }}}
<eucode>
> -- test_msg.exw
> include msg.e
>
> sequence msg
> msg = new_message("bonjour chez-vous\n")
>
> call_proc(msg[1],{msg})
>
> </eucode>
{{{
>
> running test_msg.exw result in:
>
> test_msg.exw:6
> invalid routine id
>
> --> See ex.err
>
>
> Jacques Deschênes
Interesting bug... or undocumented feature.
I've verified it on Windows by uncommenting and returning rid_msg_print and it
works. Returning a routine_id directly from a return statement doesn't seem to
work.
--
"Any programming problem can be solved by adding a level of indirection."
--anonymous
"Any performance problem can be solved by removing a level of indirection."
--M. Haertel
"Premature optimization is the root of all evil in programming."
--C.A.R. Hoare
j.
4. Re: where is my mistake
Pete Lomax wrote:
>
> jacques deschênes wrote:
> >
> > Why this code doesn't work.
> >
> > }}}
<eucode>
> > procedure msg_print(sequence this)
> > return {routine_id("rid_msg_print"),msg}
> > </eucode>
{{{
> Delete the "rid_" from the start of the routine name passed to routine_id
>
> Regards,
> Pete
D'oh! I even read this before replying.
It works if you do this.
--
"Any programming problem can be solved by adding a level of indirection."
--anonymous
"Any performance problem can be solved by removing a level of indirection."
--M. Haertel
"Premature optimization is the root of all evil in programming."
--C.A.R. Hoare
j.
5. Re: where is my mistake
Thanks Pete,
At first I did use rid_msg_print variable then I decided to modify the code to
call routine_id from inside new_message() but forgot to remove the rid_ prefix.
Sometimes we are blind to obvious mistake.
regards,
Jacques Deschênes
Pete Lomax wrote:
>
> jacques deschênes wrote:
> >
> > Why this code doesn't work.
> >
> > }}}
<eucode>
> > procedure msg_print(sequence this)
> > return {routine_id("rid_msg_print"),msg}
> > </eucode>
{{{
> Delete the "rid_" from the start of the routine name passed to routine_id
>
> Regards,
> Pete
