[C++-sig] Re: C++ Operators and Constructers

[Stefan Wolf]

Okay, the following is compiling. How do I get it into python, so that I can use the + operator with two symbol objects (which works in C++)?

#include <boost/python.hpp>
#include <iostream>

using namespace boost::python;

namespace GiNaC {
	class ex;
	class basic;
	class symbol;

	class basic {
		public:
			basic();
			basic(class basic & other);
			basic(int value);
			friend const class ex operator+(class ex& lh);
			int value;
	};

	basic::basic() { }
	
	basic::basic(int value):value(value) {
	}

	class symbol : public basic {
		public:
			symbol(const std::string& name, int value);
			friend const class ex operator+(class ex& lh);
			std::string name;
	};

	symbol::symbol(const std::string& name, int value) : 
		basic(value), name(name) 
		{
		}	

	class ex {
		public:
			ex(const basic& other);
			const class basic * bp;
	};

	ex::ex(const basic& other) : bp(&other) {
	}

	const ex operator+(const ex &lh, const ex& rh){
		return (ex(basic(lh.bp->value + rh.bp->value)));
	}
		
}


-- 
  Stefan Wolf <glowwormy at web.de>
  wolfs at in.tum.de, wolfs at fs.tum.de,
  stefan.wolf at mytum.de,
  Stefan.Wolf at stud.tu-muenchen.de

"Tú puedes quedarte, pero yo me voy" (mente de Homer Simpson)

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