[GiNaC-devel] [GiNaC-list] archive/unarchive on functions with a variable number of arguments

[Vladimir V. Kisil]

	Dear All,

	It seems there is indeed an issue with archiving zeta2, since
  both versions has the same name (it may be similar issues with other
  overloaded function names). I do not know what is zeta, but I am
  attaching a patch fixing it. To have the same printout of the function
  as before, a new function zeta2_print_dflt() has to be introduced.

  Best wishes,
  Vladimir
-- 
Vladimir V. Kisil                 http://www.maths.leeds.ac.uk/~kisilv/
  Book:     Geometry of Mobius Transformations     http://goo.gl/EaG2Vu
  Software: Geometry of cycles          http://moebinv.sourceforge.net/
  Jupyter: https://github.com/vvkisil/MoebInv-notebooks
>>>>> On Tue, 31 Mar 2020 04:42:05 +0000, Feng Feng <f.feng at outlook.com> said:

    FF> Hi all,

    FF> I came across a problem about the archive and unarchive on
    FF> functions with a variable number of arguments.  for example, the
    FF> following c++ code produces the output: zeta(10,x) :>
    FF> 1/93555*Pi^10.  it seems that the unarchive just return
    FF> zeta(10).

    FF> Best regards!  Feng

    FF> //---

    FF>     symbol x("x"); ex zx = zeta(10,x);
    
    FF>     archive ar_out; ar_out.archive_ex(zx, "zx"); ofstream
    FF> out("tmp.gar"); out << ar_out; out.close();
    
    FF>     lst syms = {x}; archive ar_in; ifstream in("tmp.gar"); in >>
    FF> ar_in; in.close();
    
    FF>     cout << zx << " :> " << ar_in.unarchive_ex(syms,"zx") <<
    FF> endl;

    FF> //--- _______________________________________________ GiNaC-list
    FF> mailing list GiNaC-list at ginac.de
    FF> https://www.ginac.de/mailman/listinfo/ginac-list

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