mirror of
https://github.com/pybind/pybind11.git
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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.
76 lines
2.9 KiB
C++
76 lines
2.9 KiB
C++
/*
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example/example-operator-overloading.cpp -- operator overloading
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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/operators.h>
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class Vector2 {
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public:
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Vector2(float x, float y) : x(x), y(y) { std::cout << "Value constructor" << std::endl; }
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Vector2(const Vector2 &v) : x(v.x), y(v.y) { std::cout << "Copy constructor" << std::endl; }
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Vector2(Vector2 &&v) : x(v.x), y(v.y) { std::cout << "Move constructor" << std::endl; v.x = v.y = 0; }
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~Vector2() { std::cout << "Destructor." << std::endl; }
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std::string toString() const {
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return "[" + std::to_string(x) + ", " + std::to_string(y) + "]";
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}
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void operator=(const Vector2 &v) {
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cout << "Assignment operator" << endl;
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x = v.x;
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y = v.y;
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}
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void operator=(Vector2 &&v) {
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cout << "Move assignment operator" << endl;
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x = v.x; y = v.y; v.x = v.y = 0;
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}
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Vector2 operator+(const Vector2 &v) const { return Vector2(x + v.x, y + v.y); }
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Vector2 operator-(const Vector2 &v) const { return Vector2(x - v.x, y - v.y); }
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Vector2 operator-(float value) const { return Vector2(x - value, y - value); }
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Vector2 operator+(float value) const { return Vector2(x + value, y + value); }
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Vector2 operator*(float value) const { return Vector2(x * value, y * value); }
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Vector2 operator/(float value) const { return Vector2(x / value, y / value); }
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Vector2& operator+=(const Vector2 &v) { x += v.x; y += v.y; return *this; }
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Vector2& operator-=(const Vector2 &v) { x -= v.x; y -= v.y; return *this; }
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Vector2& operator*=(float v) { x *= v; y *= v; return *this; }
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Vector2& operator/=(float v) { x /= v; y /= v; return *this; }
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friend Vector2 operator+(float f, const Vector2 &v) { return Vector2(f + v.x, f + v.y); }
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friend Vector2 operator-(float f, const Vector2 &v) { return Vector2(f - v.x, f - v.y); }
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friend Vector2 operator*(float f, const Vector2 &v) { return Vector2(f * v.x, f * v.y); }
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friend Vector2 operator/(float f, const Vector2 &v) { return Vector2(f / v.x, f / v.y); }
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private:
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float x, y;
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};
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void init_ex_operator_overloading(py::module &m) {
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py::class_<Vector2>(m, "Vector2")
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.def(py::init<float, float>())
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.def(py::self + py::self)
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.def(py::self + float())
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.def(py::self - py::self)
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.def(py::self - float())
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.def(py::self * float())
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.def(py::self / float())
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.def(py::self += py::self)
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.def(py::self -= py::self)
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.def(py::self *= float())
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.def(py::self /= float())
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.def(float() + py::self)
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.def(float() - py::self)
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.def(float() * py::self)
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.def(float() / py::self)
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.def("__str__", &Vector2::toString);
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m.attr("Vector") = m.attr("Vector2");
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}
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