mirror of
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b3f3d79f4c
This renames example files from `exampleN` to `example-description`.
Specifically, the following renaming is applied:
example1 -> example-methods-and-attributes
example2 -> example-python-types
example3 -> example-operator-overloading
example4 -> example-constants-and-functions
example5 -> example-callbacks (*)
example6 -> example-sequence-and-iterators
example7 -> example-buffers
example8 -> example-custom-ref-counting
example9 -> example-modules
example10 -> example-numpy-vectorize
example11 -> example-arg-keywords-and-defaults
example12 -> example-virtual-functions
example13 -> example-keep-alive
example14 -> example-opaque-types
example15 -> example-pickling
example16 -> example-inheritance
example17 -> example-stl-binders
example18 -> example-eval
example19 -> example-custom-exceptions
* the inheritance parts of example5 are moved into example-inheritance
(previously example16), and the remainder is left as example-callbacks.
This commit also renames the internal variables ("Example1",
"Example2", "Example4", etc.) into non-numeric names ("ExampleMandA",
"ExamplePythonTypes", "ExampleWithEnum", etc.) to correspond to the
file renaming.
The order of tests is preserved, but this can easily be changed if
there is some more natural ordering by updating the list in
examples/CMakeLists.txt.
63 lines
2.3 KiB
C++
63 lines
2.3 KiB
C++
/*
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example/example-opaque-types.cpp -- opaque types, passing void pointers
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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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#include <vector>
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typedef std::vector<std::string> StringList;
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class ClassWithSTLVecProperty {
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public:
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StringList stringList;
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};
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/* IMPORTANT: Disable internal pybind11 translation mechanisms for STL data structures */
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PYBIND11_MAKE_OPAQUE(StringList);
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void init_ex_opaque_types(py::module &m) {
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py::class_<StringList>(m, "StringList")
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.def(py::init<>())
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.def("pop_back", &StringList::pop_back)
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/* There are multiple versions of push_back(), etc. Select the right ones. */
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.def("push_back", (void (StringList::*)(const std::string &)) &StringList::push_back)
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.def("back", (std::string &(StringList::*)()) &StringList::back)
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.def("__len__", [](const StringList &v) { return v.size(); })
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.def("__iter__", [](StringList &v) {
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return py::make_iterator(v.begin(), v.end());
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}, py::keep_alive<0, 1>());
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py::class_<ClassWithSTLVecProperty>(m, "ClassWithSTLVecProperty")
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.def(py::init<>())
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.def_readwrite("stringList", &ClassWithSTLVecProperty::stringList);
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m.def("print_opaque_list", [](const StringList &l) {
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std::cout << "Opaque list: [";
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bool first = true;
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for (auto entry : l) {
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if (!first)
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std::cout << ", ";
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std::cout << entry;
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first = false;
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}
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std::cout << "]" << std::endl;
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});
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m.def("return_void_ptr", []() { return (void *) 0x1234; });
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m.def("print_void_ptr", [](void *ptr) { std::cout << "Got void ptr : 0x" << std::hex << (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 : 0x" << std::hex << (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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