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Mapping of std::complex<T> <-> Python complex.

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[SVN r9305]
This commit is contained in:
Ralf W. Grosse-Kunstleve
2001-02-21 08:01:54 +00:00
parent 728708072a
commit b438293c9c
1 changed files with 27 additions and 0 deletions
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27
include/boost/python/conversions.hpp
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@@ -16,6 +16,7 @@
# include <boost/smart_ptr.hpp>
# include <boost/python/errors.hpp>
# include <string>
# include <complex>
BOOST_PYTHON_BEGIN_CONVERSION_NAMESPACE // this is a gcc 2.95.2 bug workaround
@@ -134,6 +135,32 @@ PyObject* to_python(const std::string& s);
std::string from_python(PyObject*, boost::python::type<std::string>);
std::string from_python(PyObject*, boost::python::type<const std::string&>);
template <class T>
PyObject* to_python(const std::complex<T>& sc) {
Py_complex pcc;
pcc.real = sc.real();
pcc.imag = sc.imag();
return PyComplex_FromCComplex(pcc);
}
template <class T>
std::complex<T> from_python(PyObject* p,
boost::python::type<const std::complex<T>&>) {
if (! PyComplex_Check(p)) {
PyErr_SetString(PyExc_TypeError, "expected a complex number");
throw boost::python::argument_error();
}
return std::complex<T>(
static_cast<T>(PyComplex_RealAsDouble(p)),
static_cast<T>(PyComplex_ImagAsDouble(p)));
}
template <class T>
inline std::complex<T> from_python(PyObject* p,
boost::python::type<std::complex<T> >) {
return from_python(p, boost::python::type<const std::complex<T>&>());
}
// For when your C++ function really wants to pass/return a PyObject*
PyObject* to_python(PyObject*);
PyObject* from_python(PyObject*, boost::python::type<PyObject*>);