netgen/libsrc/general/ngpython.hpp

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#ifdef NG_PYTHON
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#include <pybind11/pybind11.h>
#include <pybind11/operators.h>
namespace py = pybind11;
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#include <iostream>
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#include <sstream>
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namespace pybind11 {
template<typename T>
bool CheckCast( py::handle obj ) {
try{
obj.cast<T>();
return true;
}
catch (py::cast_error &e) {
return false;
}
}
template <typename T>
struct extract
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{
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py::handle obj;
extract( py::handle aobj ) : obj(aobj) {}
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bool check() { return CheckCast<T>(obj); }
T operator()() { return obj.cast<T>(); }
};
}
struct NGDummyArgument {};
inline void NOOP_Deleter(void *) { ; }
namespace netgen
{
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//////////////////////////////////////////////////////////////////////
// Lambda to function pointer conversion
template <typename Function>
struct function_traits
: public function_traits<decltype(&Function::operator())> {};
template <typename ClassType, typename ReturnType, typename... Args>
struct function_traits<ReturnType(ClassType::*)(Args...) const> {
typedef ReturnType (*pointer)(Args...);
typedef ReturnType return_type;
};
template <typename Function>
typename function_traits<Function>::pointer
FunctionPointer (const Function& lambda) {
return static_cast<typename function_traits<Function>::pointer>(lambda);
}
template <class T>
inline std::string ToString (const T& t)
{
std::stringstream ss;
ss << t;
return ss.str();
}
}
#endif