[BUG]: How to bind a c array within a class function
Stoneplay opened this issue · comments
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What version (or hash if on master) of pybind11 are you using?
2.11.1
Problem description
Due to the set_max_vel function of Engine class is not static function, so it will raise an error when I bind the the set_max_vel function like that. How to bind a c array which is in a function within a class?
Reproducible example code
// c++ code
#include <Eigen/Core>
class Engine: {
public:
Engine();
void set_max_vel(float *max_vel, int dof){
max_velocity_.resize(dof);
for (int i = 0; i < dof; i++){
max_velocity_[i] = (double)max_vel[i];
}
}
private:
Eigen::VectorXd max_velocity_;
}
// binding code
#include <pybind11/pybind11.h>
#include <pybind11/numpy.h>
namespace py = pybind11;
py::class_<Engine>(m, "Engine")
.def(py::init<>())
.def("set_max_vel", [](py::array_t<float> buffer, int dof) {
py::buffer_info info = buffer.request();
Engine::set_max_vel(static_cast<float*>(info.ptr), dof); });
Is this a regression? Put the last known working version here if it is.
Not a regression