For the following code:
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------
#include <boost/python.hpp>
using namespace boost::python;
namespace // unnamed
{
class NullableDouble
{
public:
NullableDouble()
: isNull_(true)
, value_(0.0)
{
}
NullableDouble(double x)
: isNull_(false)
, value_(x)
{
}
double value() const
{
return value_; // null check not relevant to this example
}
bool isNull() const
{
return isNull_;
}
// ... more functions but not needed for this example
private:
bool isNull_;
double value_;
};
} // end namespace unnamed
void init_pnic()
{
class_<NullableDouble>
("NullableDouble", "NullableDouble", init<>())
.def(init<double>())
.def("value", &NullableDouble::value)
.def("isNull", &NullableDouble::isNull)
;
}
BOOST_PYTHON_MODULE(_testPNIC)
{
init_pnic();
}
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------
I would like to have another constructor method in python that takes a 'None'
and returns the same as the no arg constructor 'NullableDouble()'
What is the best way to do this?
Thanks,
--Liam
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