mirror of https://github.com/pybind/pybind11.git
41 lines
1.5 KiB
C++
41 lines
1.5 KiB
C++
/*
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example/example14.cpp -- opaque types, passing void pointers
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Copyright (c) 2015 Wenzel Jakob <wenzel@inf.ethz.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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#include <vector>
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typedef std::vector<std::string> StringList;
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void init_ex14(py::module &m) {
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py::class_<py::opaque<StringList>>(m, "StringList")
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.def(py::init<>())
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.def("push_back", [](py::opaque<StringList> &l, const std::string &str) { l->push_back(str); })
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.def("pop_back", [](py::opaque<StringList> &l) { l->pop_back(); })
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.def("back", [](py::opaque<StringList> &l) { return l->back(); });
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m.def("print_opaque_list", [](py::opaque<StringList> &_l) {
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StringList &l = _l;
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std::cout << "Opaque list: " << std::endl;
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for (auto entry : l)
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std::cout << " " << entry << std::endl;
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});
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m.def("return_void_ptr", []() { return (void *) 1234; });
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m.def("print_void_ptr", [](void *ptr) { std::cout << "Got void ptr : " << (uint64_t) ptr << std::endl; });
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m.def("return_null_str", []() { return (char *) nullptr; });
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m.def("print_null_str", [](char *ptr) { std::cout << "Got null str : " << (uint64_t) ptr << std::endl; });
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m.def("return_unique_ptr", []() -> std::unique_ptr<StringList> {
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StringList *result = new StringList();
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result->push_back("some value");
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return std::unique_ptr<StringList>(result);
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});
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}
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