Technique for using std::ifstream, std::ofstream in python via SWIG?

Question

Is there a way to use std::[io]fstream\'s in python via swig?

I have a c-class with functions like:

void readFrom(std::istream& istr         


        

Answer 1

Working .i file based on Dietmar's suggestion to use shared pointers:

%module ptrtest

%include "boost_shared_ptr.i"
%include "std_string.i"

%shared_ptr( std::ostream )

%{
#include 
#include 
#include 

typedef boost::shared_ptr< std::ostream > ostream_ptr;

ostream_ptr mk_out(const std::string& fname ){
    return ostream_ptr( new std::ofstream( fname.c_str() ) );
}

void writeTo(std::ostream& ostr){
    ostr<<"OK"< ostream_ptr;
ostream_ptr mk_out(const std::string& fname );
void writeTo(std::ostream& ostr);

// Usage:
//>>>ostr=mk_out('/path/to/file.txt')
//>>>writeTo(ostr) # no need to cast/call-function!