Class bool_

include/pybind11/pytypes.h:1887–1906

};

class bool_ : public object {
public:
    PYBIND11_OBJECT_CVT(bool_, object, PyBool_Check, raw_bool)
    bool_() : object(Py_False, borrowed_t{}) {}
    // Allow implicit conversion from and to `bool`:
    // NOLINTNEXTLINE(google-explicit-constructor)
    bool_(bool value) : object(value ? Py_True : Py_False, borrowed_t{}) {}
    // NOLINTNEXTLINE(google-explicit-constructor)
    operator bool() const { return (m_ptr != nullptr) && PyLong_AsLong(m_ptr) != 0; }

private:
    /// Return the truth value of an object -- always returns a new reference
    static PyObject *raw_bool(PyObject *op) {
        const auto value = PyObject_IsTrue(op);
        if (value == -1) {
            return nullptr;
        }
        return handle(value != 0 ? Py_True : Py_False).inc_ref().ptr();
    }
};

PYBIND11_NAMESPACE_BEGIN(detail)
// Converts a value to the given unsigned type.  If an error occurs, you get back (Unsigned) -1;