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Diffstat (limited to 'tests/test_stl_binders.cpp')
-rw-r--r-- | tests/test_stl_binders.cpp | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/tests/test_stl_binders.cpp b/tests/test_stl_binders.cpp new file mode 100644 index 0000000..a88b589 --- /dev/null +++ b/tests/test_stl_binders.cpp @@ -0,0 +1,107 @@ +/* + tests/test_stl_binders.cpp -- Usage of stl_binders functions + + Copyright (c) 2016 Sergey Lyskov + + All rights reserved. Use of this source code is governed by a + BSD-style license that can be found in the LICENSE file. +*/ + +#include "pybind11_tests.h" + +#include <pybind11/stl_bind.h> +#include <pybind11/numpy.h> +#include <map> +#include <deque> +#include <unordered_map> + +class El { +public: + El() = delete; + El(int v) : a(v) { } + + int a; +}; + +std::ostream & operator<<(std::ostream &s, El const&v) { + s << "El{" << v.a << '}'; + return s; +} + +/// Issue #487: binding std::vector<E> with E non-copyable +class E_nc { +public: + explicit E_nc(int i) : value{i} {} + E_nc(const E_nc &) = delete; + E_nc &operator=(const E_nc &) = delete; + E_nc(E_nc &&) = default; + E_nc &operator=(E_nc &&) = default; + + int value; +}; + +template <class Container> Container *one_to_n(int n) { + auto v = new Container(); + for (int i = 1; i <= n; i++) + v->emplace_back(i); + return v; +} + +template <class Map> Map *times_ten(int n) { + auto m = new Map(); + for (int i = 1; i <= n; i++) + m->emplace(int(i), E_nc(10*i)); + return m; +} + +TEST_SUBMODULE(stl_binders, m) { + // test_vector_int + py::bind_vector<std::vector<unsigned int>>(m, "VectorInt", py::buffer_protocol()); + + // test_vector_custom + py::class_<El>(m, "El") + .def(py::init<int>()); + py::bind_vector<std::vector<El>>(m, "VectorEl"); + py::bind_vector<std::vector<std::vector<El>>>(m, "VectorVectorEl"); + + // test_map_string_double + py::bind_map<std::map<std::string, double>>(m, "MapStringDouble"); + py::bind_map<std::unordered_map<std::string, double>>(m, "UnorderedMapStringDouble"); + + // test_map_string_double_const + py::bind_map<std::map<std::string, double const>>(m, "MapStringDoubleConst"); + py::bind_map<std::unordered_map<std::string, double const>>(m, "UnorderedMapStringDoubleConst"); + + py::class_<E_nc>(m, "ENC") + .def(py::init<int>()) + .def_readwrite("value", &E_nc::value); + + // test_noncopyable_containers + py::bind_vector<std::vector<E_nc>>(m, "VectorENC"); + m.def("get_vnc", &one_to_n<std::vector<E_nc>>, py::return_value_policy::reference); + py::bind_vector<std::deque<E_nc>>(m, "DequeENC"); + m.def("get_dnc", &one_to_n<std::deque<E_nc>>, py::return_value_policy::reference); + py::bind_map<std::map<int, E_nc>>(m, "MapENC"); + m.def("get_mnc", ×_ten<std::map<int, E_nc>>, py::return_value_policy::reference); + py::bind_map<std::unordered_map<int, E_nc>>(m, "UmapENC"); + m.def("get_umnc", ×_ten<std::unordered_map<int, E_nc>>, py::return_value_policy::reference); + + // test_vector_buffer + py::bind_vector<std::vector<unsigned char>>(m, "VectorUChar", py::buffer_protocol()); + // no dtype declared for this version: + struct VUndeclStruct { bool w; uint32_t x; double y; bool z; }; + m.def("create_undeclstruct", [m] () mutable { + py::bind_vector<std::vector<VUndeclStruct>>(m, "VectorUndeclStruct", py::buffer_protocol()); + }); + + // The rest depends on numpy: + try { py::module::import("numpy"); } + catch (...) { return; } + + // test_vector_buffer_numpy + struct VStruct { bool w; uint32_t x; double y; bool z; }; + PYBIND11_NUMPY_DTYPE(VStruct, w, x, y, z); + py::class_<VStruct>(m, "VStruct").def_readwrite("x", &VStruct::x); + py::bind_vector<std::vector<VStruct>>(m, "VectorStruct", py::buffer_protocol()); + m.def("get_vectorstruct", [] {return std::vector<VStruct> {{0, 5, 3.0, 1}, {1, 30, -1e4, 0}};}); +} |