[stopsource.cons] (original) (raw)

32 Thread support library [thread]

32.3 Stop tokens [thread.stoptoken]

32.3.4 Class stop_­source [stopsource]

32.3.4.2 Constructors, copy, and assignment [stopsource.cons]

Effects: Initialises *this to have ownership of a new stop state.

Postconditions: stop_­possible() is trueand stop_­requested() is false.

Throws: bad_­alloc if memory could not be allocated for the stop state.

explicit stop_source(nostopstate_t) noexcept;

Postconditions: stop_­possible() is false andstop_­requested() is false.

[Note 1:

No resources are allocated for the state.

— _end note_]

stop_source(const stop_source& rhs) noexcept;

Postconditions: *this == rhs is true.

[Note 2:

*this and rhs share the ownership of the same stop state, if any.

— _end note_]

stop_source(stop_source&& rhs) noexcept;

Postconditions: *this contains the value of rhsprior to the start of construction and rhs.stop_­possible() is false.

Effects: Releases ownership of the stop state, if any.

stop_source& operator=(const stop_source& rhs) noexcept;

Effects: Equivalent to: stop_­source(rhs).swap(*this).

stop_source& operator=(stop_source&& rhs) noexcept;

Effects: Equivalent to: stop_­source(std​::​move(rhs)).swap(*this).

void swap(stop_source& rhs) noexcept;

Effects: Exchanges the values of *this and rhs.