tmp/tmplvnw7jnh/{from.md → to.md}
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##### `shared_lock` modifiers <a id="thread.lock.shared.mod">[[thread.lock.shared.mod]]</a>
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``` cpp
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void swap(shared_lock& sl) noexcept;
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```
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*Effects:* Swaps the data members of `*this` and `sl`.
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``` cpp
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mutex_type* release() noexcept;
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```
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*Returns:* The previous value of `pm`.
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*Postconditions:* `pm == nullptr` and `owns == false`.
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``` cpp
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template <class Mutex>
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void swap(shared_lock<Mutex>& x, shared_lock<Mutex>& y) noexcept;
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```
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*Effects:* `x.swap(y)`.
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