#18623: Allow calling variadic PARI closures
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Reporter: pbruin | Owner:
Type: defect | Status: needs_review
Priority: minor | Milestone: sage-6.8
Component: interfaces | Resolution:
Keywords: pari closure | Merged in:
Authors: Peter Bruin | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/pbruin/18623-variadic_pari_closure|
b0d0400a69a3e3f3eb540f40ba223d41b281ce5b
Dependencies: | Stopgaps:
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Changes (by pbruin):
* status: new => needs_review
* commit: => b0d0400a69a3e3f3eb540f40ba223d41b281ce5b
* branch: => u/pbruin/18623-variadic_pari_closure
Old description:
> Calling a PARI closure with variadic arguments is not possible:
> {{{
> sage: f = pari("(v[..])->length(v)") # returns the number of its
> arguments
> sage: f()
> Traceback (most recent call last):
> ...
> TypeError: PARI closure takes at most -9223372036854775807 arguments (0
> given)
> }}}
> This is because variadic PARI closures are not recognised by Sage and
> have a somewhat different calling convention.
New description:
Calling a PARI closure with variadic arguments is not possible:
{{{
sage: f = pari("(v[..])->length(v)") # returns the number of its
arguments
sage: f()
Traceback (most recent call last):
...
TypeError: PARI closure takes at most -9223372036854775807 arguments (0
given)
}}}
This is because variadic PARI closures are not recognised by Sage and have
a somewhat different calling convention.
We also remove a check for the arity of a closure, since this is handled
by PARI since recent versions.
--
--
Ticket URL: <http://trac.sagemath.org/ticket/18623#comment:1>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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