Re: What happened to 'local'?

["Karim Belabas" <Karim.Belabas@math.u-bordeaux1.fr>]

* Ottavio G. Rizzo [2006-05-31 17:00]:
> Hallo,
> 
> I just installed 2.3.0, and I realized that the gp function 'local'
> disappeared.

It's not a 'function', it's a 'scope declaration', whose purpose is to tell
something to the GP parser. In particular, there is no online help for it.

> I checked the source code, to make sure it's not a problem with the
> fedora package, but I could not find it.
> 
> I searched the mailing lists, but I couldn't find any mention of the
> function, which is still mentioned in the manual.
> 
> It appears to me that 'local' is still needed:
> 
> ? a=1
> %23 = 1
> ? test(x)={a=x+1;return(a)}
> ? test(12)
> %24 = 13
> ? a
> %25 = 13
> 
> Was I looking in the wrong place, there's something I don't understand,
> or the function was just left out?

What makes you think it has disappeared ?

  (17:14) gp > test(x)={local(a);a=x+1;return(a)}
  (17:14) gp > test(12)
  %1 = 13
  (17:14) gp > a
  %2 = a

Btw the braces are not necessary for 1-liners:

  test(x) = local(a);a=x+1;return(a)

would work just as well.

Cheers,

    K.B.
-- 
Karim Belabas                  Tel: (+33) (0)5 40 00 26 17
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