[C++-sig] def_readonly and const array members

Ralf W. Grosse-Kunstleve rwgk at yahoo.com
Fri Jul 25 03:05:35 CEST 2003

--- Jeff Brewer <jeff at brewer.com> wrote:
> I am trying to wrap structs that have character arrays and I'm having
> problems since I moved from MSVC 7 to MSVC 7.1 (VS .NET 2003). Here is
> the struct I'm trying to expose the theArray member of using
> class_::def_readonly:

Are you also moving to a more recent boost?

> 		.def_readonly("theArray", &testStruct::theArray);

Try this instead:

#include <boost/python/return_value_policy.hpp>
#include <boost/python/return_by_value.hpp>

.add_property("theArray", make_getter(&testStruct::theArray,

If you want to support both Boost 1.29 and never versions:

#include <boost/version.hpp>
#if BOOST_VERSION >= 103000
// use add_property
// use def_readonly or def_readwrite


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