placement-new constructors are deprecated

src/Vector.hh

@@ -195,12 +195,12 @@ void expose_vec(py::module& m, const char *_name) {
 		.def_static("size", &Vector::size)
 		.def_static("vectorized", &Vector::vectorized)
 
-		.def("__init__", [](Vector& _self, py::array_t<Scalar, py::array::c_style | py::array::forcecast> _arr) {
+		.def(py::init([](py::array_t<Scalar, py::array::c_style | py::array::forcecast> _arr) {
 				if (_arr.size() != N) {
 					throw std::runtime_error("Incompatible array size!");
 				}
-				new (&_self) Vector(_arr.data());
-			});
+				return Vector(_arr.data());
+			}));
 		;
 
 	defInitMod<Scalar, Vector>(m, classVector);