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Boost.PythonHeader <boost/python/args.hpp> |
argarg
synopsisarg
constructorarg template
operator =,args(...)Supplies a family of overloaded functions for specifying argument keywords for wrapped C++ functions.
A keyword-expression results in an object which holds a sequence of ntbses, and whose type encodes the number of keywords specified. The keyword-expression may contain default values for some or all of the keywords it holds
class arg;The objects of class arg are keyword-expressions holding one keyword ( size one )
arg synopsis
namespace boost { namespace python
{
struct arg
{
template <class T>
arg &operator = (T const &value);
explicit arg (char const *name){elements[0].name = name;}
};
}}
arg constructorarg(char const* name);
arg object holding a
keyword with name name.arg operator =template <class T> arg &operator = (T const &value);
this.,
keyword-expression operator , (keyword-expression, const arg &kw) const
keyword-expression operator , (keyword-expression, const char *name) const;
name must be a ntbs.args(...)
unspecified1 args(char const*);
unspecified2 args(char const*, char const*);
.
.
.
unspecifiedN args(char const*, char const*, ... char const*);
#include <boost/python/def.hpp>
using namespace boost::python;
int f(double x, double y, double z=0.0, double w=1.0);
BOOST_PYTHON_MODULE(xxx)
{
def("f", f
, ( arg("x"), "y", arg("z")=0.0, arg("w")=1.0 )
);
}
Revised 01 August, 2003
© Copyright Dave Abrahams 2002-2003.