test_constants_and_functions.cpp revision 11986:c12e4625ab56 
1/*
2    tests/test_constants_and_functions.cpp -- global constants and functions, enumerations, raw byte strings
3
4    Copyright (c) 2016 Wenzel Jakob <wenzel.jakob@epfl.ch>
5
6    All rights reserved. Use of this source code is governed by a
7    BSD-style license that can be found in the LICENSE file.
8*/
9
10#include "pybind11_tests.h"
11
12enum MyEnum { EFirstEntry = 1, ESecondEntry };
13
14std::string test_function1() {
15    return "test_function()";
16}
17
18std::string test_function2(MyEnum k) {
19    return "test_function(enum=" + std::to_string(k) + ")";
20}
21
22std::string test_function3(int i) {
23    return "test_function(" + std::to_string(i) + ")";
24}
25
26py::str test_function4(int, float) { return "test_function(int, float)"; }
27py::str test_function4(float, int) { return "test_function(float, int)"; }
28
29py::bytes return_bytes() {
30    const char *data = "\x01\x00\x02\x00";
31    return std::string(data, 4);
32}
33
34std::string print_bytes(py::bytes bytes) {
35    std::string ret = "bytes[";
36    const auto value = static_cast<std::string>(bytes);
37    for (size_t i = 0; i < value.length(); ++i) {
38        ret += std::to_string(static_cast<int>(value[i])) + " ";
39    }
40    ret.back() = ']';
41    return ret;
42}
43
44test_initializer constants_and_functions([](py::module &m) {
45    m.attr("some_constant") = py::int_(14);
46
47    m.def("test_function", &test_function1);
48    m.def("test_function", &test_function2);
49    m.def("test_function", &test_function3);
50
51#if defined(PYBIND11_OVERLOAD_CAST)
52    m.def("test_function", py::overload_cast<int, float>(&test_function4));
53    m.def("test_function", py::overload_cast<float, int>(&test_function4));
54#else
55    m.def("test_function", static_cast<py::str (*)(int, float)>(&test_function4));
56    m.def("test_function", static_cast<py::str (*)(float, int)>(&test_function4));
57#endif
58
59    py::enum_<MyEnum>(m, "MyEnum")
60        .value("EFirstEntry", EFirstEntry)
61        .value("ESecondEntry", ESecondEntry)
62        .export_values();
63
64    m.def("return_bytes", &return_bytes);
65    m.def("print_bytes", &print_bytes);
66});
67