tmp/tmpr9eeo8dv/{from.md → to.md}
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## Deprecated `shared_ptr` observers <a id="depr.util.smartptr.shared.obs">[[depr.util.smartptr.shared.obs]]</a>
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The following member is defined in addition to those members specified
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in [[util.smartptr.shared]]:
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``` cpp
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namespace std {
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template<class T> class shared_ptr {
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public:
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bool unique() const noexcept;
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};
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}
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```
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``` cpp
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bool unique() const noexcept;
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```
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*Returns:* `use_count() == 1`.
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