33 Concurrency support library [thread]

33.3 Stop tokens [thread.stoptoken]

33.3.4 Class stop_source [stopsource]

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

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stop_source();
1
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Effects: Initialises *this to have ownership of a new stop state.
2
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Postconditions: stop_possible() is true and stop_requested() is false.
3
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Throws: bad_alloc if memory cannot be allocated for the stop state.
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explicit stop_source(nostopstate_t) noexcept;
4
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Postconditions: stop_possible() is false and stop_requested() is false.
[Note 1: 
No resources are allocated for the state.
— end note]
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stop_source(const stop_source& rhs) noexcept;
5
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Postconditions: *this == rhs is true.
[Note 2: 
*this and rhs share the ownership of the same stop state, if any.
— end note]
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stop_source(stop_source&& rhs) noexcept;
6
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Postconditions: *this contains the value of rhs prior to the start of construction and rhs.stop_possible() is false.
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~stop_source();
7
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Effects: Releases ownership of the stop state, if any.
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stop_source& operator=(const stop_source& rhs) noexcept;
8
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Effects: Equivalent to: stop_source(rhs).swap(*this).
9
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Returns: *this.
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stop_source& operator=(stop_source&& rhs) noexcept;
10
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Effects: Equivalent to: stop_source(std​::​move(rhs)).swap(*this).
11
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Returns: *this.
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void swap(stop_source& rhs) noexcept;
12
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Effects: Exchanges the values of *this and rhs.