[C++-sig] Pointers to simple types, arrays and arrays of pointers to types

[Niall Douglas]

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My apologies if this is really simple. I did search ASPN and didn't 
get anything relevent after 20 mins, so ...

I have everything compiling except for eight of over 100 source files 
(thanks again to everyone here!). Most of these won't compile because 
some method returns a pointer to a simple type eg;

typedef unsigned long FXColor;

class FXImage
{
public:
    FXColor* getData() const;
};

using namespace boost::python;

void Export_FXImage()
{
    class_< FXImage >("FXImage")
		.def("getData", &FXImage::getData, return_internal_reference< 1 
>())
    ;
};

This won't compile because FXColor is not a class. Ideally I'd like 
the python side to be able to access the array of FXColor's being 
returned - no limits are needed because other methods return the 
length.

In other places still I have a find() function returning a pointer to 
a single float for example. In this situation I'd want the float to 
dereference to a float if the pointer is not null, otherwise return 
none. But if I use a thin wrapper, it can only return float and not 
none! :(

Lastly, some other methods return a type ** ie; an array of pointers 
to object instances. How on earth can this get wrapped? Is that 
indexing suite the right answer for these?

Cheers,
Niall





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