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62 lines
1.9 KiB
62 lines
1.9 KiB
/*
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example/example11.cpp -- keyword arguments and default values
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Copyright (c) 2016 Wenzel Jakob <wenzel.jakob@epfl.ch>
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All rights reserved. Use of this source code is governed by a
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BSD-style license that can be found in the LICENSE file.
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*/
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#include "example.h"
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#include <pybind11/stl.h>
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void kw_func(int x, int y) { std::cout << "kw_func(x=" << x << ", y=" << y << ")" << std::endl; }
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void kw_func4(const std::vector<int> &entries) {
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std::cout << "kw_func4: ";
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for (int i : entries)
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std::cout << i << " ";
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std::cout << endl;
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}
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py::object call_kw_func(py::function f) {
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py::tuple args = py::make_tuple(1234);
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py::dict kwargs;
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kwargs["y"] = py::cast(5678);
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return f(*args, **kwargs);
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}
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void args_function(py::args args) {
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for (size_t it=0; it<args.size(); ++it)
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std::cout << "got argument: " << py::object(args[it]) << std::endl;
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}
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void args_kwargs_function(py::args args, py::kwargs kwargs) {
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for (auto item : args)
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std::cout << "got argument: " << item << std::endl;
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if (kwargs) {
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for (auto item : kwargs)
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std::cout << "got keyword argument: " << item.first << " -> " << item.second << std::endl;
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}
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}
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void init_ex11(py::module &m) {
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m.def("kw_func", &kw_func, py::arg("x"), py::arg("y"));
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m.def("kw_func2", &kw_func, py::arg("x") = 100, py::arg("y") = 200);
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m.def("kw_func3", [](const char *) { }, py::arg("data") = std::string("Hello world!"));
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/* A fancier default argument */
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std::vector<int> list;
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list.push_back(13);
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list.push_back(17);
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m.def("kw_func4", &kw_func4, py::arg("myList") = list);
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m.def("call_kw_func", &call_kw_func);
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m.def("args_function", &args_function);
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m.def("args_kwargs_function", &args_kwargs_function);
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using namespace py::literals;
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m.def("kw_func_udl", &kw_func, "x"_a, "y"_a=300);
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m.def("kw_func_udl_z", &kw_func, "x"_a, "y"_a=0);
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}
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