OpenEuphoria

Re: Detecting the Eu version

• Posted by "Juergen Luethje" <j.lue at gmx.de> Dec 13, 2004
• 569 views

Igor Kachan wrote:

> Hi, Juergen!
>
> You wrote:
>
>> Hi all,
>>
>> recently Derek and Pete (L) posted here some useful code, that allows
>> a program to detect the current Eu version at runtime. I think it is
>> especially helpful to use such a functionality in libraries, that
>> require at least a particular Eu version.
>>
>> Concerning Eu 2.5, it can look like this:
>> }}}
<eucode>
>> include machine.e
>> if routine_id("crash_routine") = -1 then       -- crash_routine() was
>>    puts(1, "Euphoria 2.5 or later required."   -- introduced in v2.5
>>          & "\n\nPress Enter ...")
>>    if getc(0) then end if
>>    abort(1)
>> end if

My previous post begins with an "introduction", that ends with the word
"OK". _Thereafter_ follows the description of the problem that I see.
What you quoted here, is only a part of the "introduction".

> There is some universal method - all ex.exes, exw.exes, exus, ec.exes  etc
> have the unique lengths.
>
> So, you can detect the version with something like to:
>
> }}}
<eucode>
> global function version(sequence name, atom EXE_Length)
>  name = machine_func(22, name) -- dir info
>     if name[1][3]  =   EXE_Length then
>           return 1
>     else
>           return 0
>    end if
> end fubction
> </eucode>
{{{

>
> [snip]
>
> Just pass the name of the needed interpreter and
> its known length and you'll get an answer is it yours one
> or no, it is not.

That will not solve the problem that I described. If I had expressed
myself ambiguously or otherwise unclear in my original post, please tell
me what you didn't understand.

Regards,
   Juergen

-- 
Have you read a good program lately?