[GiNaC-list] parse own function

[Jan.M]

hello,

i'm new to ginac and got some problems with parsing own functions:

#include <iostream>
#include <ginac/ginac.h>

using namespace std;
using namespace GiNaC;

DECLARE_FUNCTION_3P(myfct)
REGISTER_FUNCTION(myfct,dummy())


int main(int argc, char **argv){
    symbol x("x"),y("y");
    lst all;

    all = x,y;

    string str = "myfct(x,y,2)";
    ex e(str, all);
    cout  << e << endl;

    return 0;
}

--->
terminate called after throwing an instance of 'GiNaC::parse_error'
  what():  GiNaC: parse error at line 0, column 0: no function "myfct" with
3 arguments
[GiNaC::ex GiNaC::parser::parse_identifier_expr()(parser/parser.cpp:66)]

have i forgot something?  thanks in advance.

jan

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