1. sequence
- Posted by tone.skoda at siol.net
May 28, 2002
This is a multi-part message in MIME format.
------=_NextPart_000_0020_01C206C7.B2C72790
charset="iso-8859-2"
This is strange:
=20
sequence s
s =3D {1,2,3,4,5,6,7,8,9}
s [2..4] =3D 99
?s
instead of displaying {1,99,5,6,7,8,9}
it displays {1,99,99,99,5,6,7,8,9}
it would be more logical if it would do the thing nr 1.
AND:
?routine_id ("power")
why is this -1? this is also not logical.
I know why these two things do what they do but they are not logical, or =
say intiuitive.
------=_NextPart_000_0020_01C206C7.B2C72790
Content-Type: text/html;
charset="iso-8859-2"
Content-Transfer-Encoding: quoted-printable
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-2">
<META content=3D"MSHTML 6.00.2600.0" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>This is strange:</FONT></DIV>
<DIV><FONT face=3DArial size=3D2> </FONT></DIV>
<DIV><FONT face=3DArial size=3D2> sequence =
s<BR> =20
s =3D {1,2,3,4,5,6,7,8,9}<BR> s [2..4] =3D=20
99<BR> ?s</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>instead of displaying =
{1,99,5,6,7,8,9}</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>it displays =
{1,99,99,99,5,6,7,8,9}<BR></FONT></DIV>
<DIV><FONT face=3DArial size=3D2>it would be more logical if it would do =
the thing=20
nr 1.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial><FONT size=3D2></FONT></FONT> </DIV>
<DIV><FONT face=3DArial><FONT size=3D2>AND:</FONT></FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial><FONT size=3D2>?routine_id =
("power")</FONT></FONT></DIV>
<DIV><FONT face=3DArial>
<DIV><FONT face=3DArial><FONT size=3D2>why is this -1? this is also not=20
logical.</FONT></FONT></DIV>
<DIV><FONT size=3D2></FONT> </DIV>
<DIV><FONT size=3D2>I know why these two things do what they do but they =
are not=20
------=_NextPart_000_0020_01C206C7.B2C72790--
2. Re: sequence
- Posted by a.tammer at hetnet.nl
May 28, 2002
Tone,
You ASK Euphoria to change sequence [2,3 and 4] to be set to 99=
if you do it this way
Antoine
3. Re: sequence
- Posted by jluethje at gmx.de
May 29, 2002
Hi Derek,
<snip>
> ------ Derek Replies: -----------
> I was surprised when I first came across the syntax : <SLICE> = <ATOM> : I
> actually thought it wouldn't work 'cos I had been brainwashed into thinking
> that when a target is a SLICE, the source had to be the same length. But
> then I realised that an atom has no length and the syntax is analogous to
> <SLICE> += <ATOM>. That is, each element in the SLICE is effected by the
> atom value. Once I started to think that way, it became "intuitive" 
> I'm not sure if you know the technique for getting the effect of a
> routine_id for a built-in function, but here is one way to do it...
<snip>
this was not the first time, that your mail was not just an answer to
the asked question, but a small "lesson". As a beginner with Euphoria,
I collect this mails, and so I get a growing tutorial. 
I just want to thank you for your comprehensive information.
Best regards,
Juergen
4. Re: sequence
- Posted by alexione at EUnet.yu
May 30, 2002
>------------
> function BIpower(object x, object y)
> return power(x,y)
> end function
> without warning
> function power(object x, object y)
> return BIpower(x,y)
> end function
> with warning
>
> constant r = routine_id("power")
>--------------
>
>Of course, it would be a lot more simple (for us users of the product) to
>allow taking the routine_id of a built_in function/procedure. However, I
>realise that the internal architecture of Euphoria actually makes this a
>non-trivial exercise.
>
>----------
>Derek.
Why not making internal.e which would come with standard EU, containing,
"wrappers" to internal functions/procedures with some prefix in name, like:
---- internal.e ----
global function _power(object x, objext y)
return power(x, y)
end function
...
---- end of internal.e ----
This way, you can still use power to refere internal function, and have only one
auxiliary function-call when you use call(routine_id("_power"), {x, y})
Alexa
5. Re: sequence
Good idea Alexa. I'll write one up and post it to this list soon.
jbrown
On 0, alexione at EUnet.yu wrote:
>
> >------------
> > function BIpower(object x, object y)
> > return power(x,y)
> > end function
> > without warning
> > function power(object x, object y)
> > return BIpower(x,y)
> > end function
> > with warning
> >
> > constant r = routine_id("power")
> >--------------
> >
> >Of course, it would be a lot more simple (for us users of the product) to
> >allow taking the routine_id of a built_in function/procedure. However, I
> >realise that the internal architecture of Euphoria actually makes this a
> >non-trivial exercise.
> >
> >----------
> >Derek.
>
> Why not making internal.e which would come with standard EU, containing,
> "wrappers" to internal functions/procedures with some prefix in name, like:
>
> ---- internal.e ----
> global function _power(object x, objext y)
> return power(x, y)
> end function
>
> ...
> ---- end of internal.e ----
>
> This way, you can still use power to refere internal function, and have only
> one
> auxiliary function-call when you use call(routine_id("_power"), {x, y})
>
> Alexa
>
--
http://fastmail.fm/ - Consolidate POP email and HotMail in one place
