Re: [Boost-users] (Boost.Python) How to print from C++ to the same stream as Python's 'print' does?

I don't know if that helps the OP, but it's certainly an improvement over mine! Thanks. -- Early On Wed, May 13, 2009 at 3:11 AM, Christopher Currie wrote:

On Mon, May 11, 2009 at 2:17 PM, Early Ehlinger wrote:

...

Basically, you need to create a streambuf class that calls PySys_WriteStdout() inside your_streambuf_class::sync().

...

http://lists.boost.org/mailman/listinfo.cgi/boost-users

It's probably fairly straightforward to do this using Boost.Iostreams, by creating a model of Sink:

include

#include <algorithm> // min #include <iosfwd> // streamsize #include // sink_tag #include // stream #include // format

class pysys_stdout_sink { public: typedef char char_type; typedef boost::iostreams::sink_tag category;

std::streamsize write( const char* s, std::streamsize n ) { // PySys_WriteStdout truncates to 1000 chars static const std::streamsize MAXSIZE = 1000;

std::streamsize written = std::min( n, MAXSIZE ); PySys_WriteStdout( (boost::format("%%.%1%s") % written).str().c_str(), s );

return written; } };

boost::iostreams::stream pysys_stdout;

int main() { Py_Initialize(); pysys_stdout << "Hello, Python world!\n"; }

HTH, Christopher _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

-- Early Ehlinger