128 lines
4.0 KiB
C++
128 lines
4.0 KiB
C++
/*
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tests/test_constants_and_functions.cpp -- global constants and functions, enumerations, raw byte strings
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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 "pybind11_tests.h"
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enum MyEnum { EFirstEntry = 1, ESecondEntry };
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std::string test_function1() {
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return "test_function()";
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}
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std::string test_function2(MyEnum k) {
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return "test_function(enum=" + std::to_string(k) + ")";
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}
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std::string test_function3(int i) {
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return "test_function(" + std::to_string(i) + ")";
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}
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py::str test_function4() { return "test_function()"; }
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py::str test_function4(char *) { return "test_function(char *)"; }
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py::str test_function4(int, float) { return "test_function(int, float)"; }
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py::str test_function4(float, int) { return "test_function(float, int)"; }
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py::bytes return_bytes() {
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const char *data = "\x01\x00\x02\x00";
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return std::string(data, 4);
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}
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std::string print_bytes(py::bytes bytes) {
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std::string ret = "bytes[";
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const auto value = static_cast<std::string>(bytes);
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for (size_t i = 0; i < value.length(); ++i) {
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ret += std::to_string(static_cast<int>(value[i])) + " ";
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}
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ret.back() = ']';
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return ret;
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}
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// Test that we properly handle C++17 exception specifiers (which are part of the function signature
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// in C++17). These should all still work before C++17, but don't affect the function signature.
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namespace test_exc_sp {
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int f1(int x) noexcept { return x+1; }
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int f2(int x) noexcept(true) { return x+2; }
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int f3(int x) noexcept(false) { return x+3; }
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#if defined(__GNUG__)
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# pragma GCC diagnostic push
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# pragma GCC diagnostic ignored "-Wdeprecated"
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#endif
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int f4(int x) throw() { return x+4; } // Deprecated equivalent to noexcept(true)
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#if defined(__GNUG__)
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# pragma GCC diagnostic pop
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#endif
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struct C {
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int m1(int x) noexcept { return x-1; }
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int m2(int x) const noexcept { return x-2; }
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int m3(int x) noexcept(true) { return x-3; }
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int m4(int x) const noexcept(true) { return x-4; }
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int m5(int x) noexcept(false) { return x-5; }
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int m6(int x) const noexcept(false) { return x-6; }
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#if defined(__GNUG__)
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# pragma GCC diagnostic push
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# pragma GCC diagnostic ignored "-Wdeprecated"
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#endif
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int m7(int x) throw() { return x-7; }
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int m8(int x) const throw() { return x-8; }
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#if defined(__GNUG__)
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# pragma GCC diagnostic pop
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#endif
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};
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}
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TEST_SUBMODULE(constants_and_functions, m) {
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// test_constants
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m.attr("some_constant") = py::int_(14);
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// test_function_overloading
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m.def("test_function", &test_function1);
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m.def("test_function", &test_function2);
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m.def("test_function", &test_function3);
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#if defined(PYBIND11_OVERLOAD_CAST)
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m.def("test_function", py::overload_cast<>(&test_function4));
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m.def("test_function", py::overload_cast<char *>(&test_function4));
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m.def("test_function", py::overload_cast<int, float>(&test_function4));
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m.def("test_function", py::overload_cast<float, int>(&test_function4));
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#else
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m.def("test_function", static_cast<py::str (*)()>(&test_function4));
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m.def("test_function", static_cast<py::str (*)(char *)>(&test_function4));
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m.def("test_function", static_cast<py::str (*)(int, float)>(&test_function4));
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m.def("test_function", static_cast<py::str (*)(float, int)>(&test_function4));
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#endif
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py::enum_<MyEnum>(m, "MyEnum")
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.value("EFirstEntry", EFirstEntry)
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.value("ESecondEntry", ESecondEntry)
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.export_values();
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// test_bytes
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m.def("return_bytes", &return_bytes);
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m.def("print_bytes", &print_bytes);
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// test_exception_specifiers
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using namespace test_exc_sp;
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py::class_<C>(m, "C")
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.def(py::init<>())
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.def("m1", &C::m1)
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.def("m2", &C::m2)
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.def("m3", &C::m3)
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.def("m4", &C::m4)
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.def("m5", &C::m5)
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.def("m6", &C::m6)
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.def("m7", &C::m7)
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.def("m8", &C::m8)
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;
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m.def("f1", f1);
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m.def("f2", f2);
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m.def("f3", f3);
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m.def("f4", f4);
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}
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