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cppdraft/stopsource/mem.md

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+[stopsource.mem]
+
+# 32 Concurrency support library [[thread]](./#thread)
+
+## 32.3 Stop tokens [[thread.stoptoken]](thread.stoptoken#stopsource.mem)
+
+### 32.3.5 Class stop_source [[stopsource]](stopsource#mem)
+
+#### 32.3.5.3 Member functions [stopsource.mem]
+
+[🔗](#lib:swap,stop_source)
+
+`void swap(stop_source& rhs) noexcept;
+`
+
+[1](#1)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/threads.tex#L976)
+
+*Effects*: Equivalent to:*stop-state*.swap(rhs.*stop-state*);
+
+[🔗](#lib:get_token,stop_source)
+
+`stop_token get_token() const noexcept;
+`
+
+[2](#2)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/threads.tex#L990)
+
+*Returns*: stop_token() if stop_possible() is false;
+otherwise a new associated stop_token object;
+i.e., its *stop-state* member is equal to
+the *stop-state* member of *this[.](#2.sentence-1)
+
+[🔗](#lib:stop_possible,stop_source)
+
+`bool stop_possible() const noexcept;
+`
+
+[3](#3)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/threads.tex#L1004)
+
+*Returns*: *stop-state* != nullptr[.](#3.sentence-1)
+
+[🔗](#lib:stop_requested,stop_source)
+
+`bool stop_requested() const noexcept;
+`
+
+[4](#4)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/threads.tex#L1015)
+
+*Returns*: true if *stop-state* refers to a stop state
+that has received a stop request;
+otherwise, false[.](#4.sentence-1)
+
+[🔗](#lib:request_stop,stop_source)
+
+`bool request_stop() noexcept;
+`
+
+[5](#5)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/threads.tex#L1028)
+
+*Effects*: Executes a stop request operation ([[stoptoken.concepts]](stoptoken.concepts "32.3.3 Stop token concepts")) on
+the associated stop state, if any[.](#5.sentence-1)