Files
allwpilib/wpilibc/wpilibC++/include/Base.h
James Kuszmaul b5695581c3 artf4170: Make CANTalon disable on destruction.
This both disables the CANTalon in the CANTalon class (which
should be redundant) and stops sending control signals in the
CanTalonSRX hal class.

Change-Id: I63d6a9d016c221e385d5d5a3679d854882ac6650
2015-08-13 11:42:30 -07:00

42 lines
1.7 KiB
C++

/*----------------------------------------------------------------------------*/
/* Copyright (c) FIRST 2008. All Rights Reserved. */
/* Open Source Software - may be modified and shared by FRC teams. The code */
/* must be accompanied by the FIRST BSD license file in $(WIND_BASE)/WPILib. */
/*----------------------------------------------------------------------------*/
#pragma once
// MSVC 2013 doesn't allow "= default" on move constructors, but since we are
// (currently) only actually using the move constructors in non-MSVC situations
// (ie, wpilibC++Devices), we can just ignore it in MSVC.
#if !defined(_MSC_VER)
#define DEFAULT_MOVE_CONSTRUCTOR(ClassName) \
ClassName(ClassName &&) = default
#else
#define DEFAULT_MOVE_CONSTRUCTOR(ClassName)
#endif
// A struct to use as a deleter when a std::shared_ptr must wrap a raw pointer
// that is being deleted by someone else.
// This should only be called in deprecated functions; using it anywhere else
// will throw warnings.
template<class T>
struct [[deprecated]] NullDeleter {
void operator()(T *) const noexcept {};
};
#include <atomic>
// Use this for determining whether the default move constructor has been
// called on a containing object. This serves the purpose of allowing us to
// use the default move constructor of an object for moving all the data around
// while being able to use this to, for instance, chose not to de-allocate
// a PWM port in a destructor.
struct HasBeenMoved {
HasBeenMoved(HasBeenMoved&& other) {
other.moved = true;
moved = false;
}
HasBeenMoved() = default;
std::atomic<bool> moved{false};
operator bool() const { return moved; }
};