Re: [Discuss-gnuradio] SWIG Typemap for Two-way Conversion Between Python Stringand (char*, int) in C++

[Johnathan Corgan]

On Fri, 2007-01-05 at 21:48 +0800, Jeremy Chew wrote:

> How do we specify a typemap for a C++ extension that also converts such
> strings from C++ to Python? I want to have C++ calls that receive strings 
> from Python code as well as C++ calls that pass strings to Python code.

The good news is that the standard SWIG library has already done most of
the work for you.  If you add:

%include std_string.i

...in your .i file, then SWIG automagically (using typemaps) converts
between the STL std::string type and Python strings.

More documentation is here:

http://www.swig.org/Doc1.3/Library.html

...where you'll see similar examples for converting between std::vector
and Python lists, std::map and Python dictionaries, and more.

-- 
Johnathan Corgan, AE6HO
Corgan Enterprises LLC
address@hidden