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### In general <a id="optional.general">[[optional.general]]</a>
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optional objects. An *optional object* is an object that
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storage for another object and manages the lifetime of this
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object, if any. The contained object may be initialized after
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optional object has been initialized, and may be destroyed before
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optional object has been destroyed. The initialization state of the
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contained object is tracked by the optional object.
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### In general <a id="optional.general">[[optional.general]]</a>
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Subclause [[optional]] describes class template `optional` that
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represents optional objects. An *optional object* is an object that
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contains the storage for another object and manages the lifetime of this
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contained object, if any. The contained object may be initialized after
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the optional object has been initialized, and may be destroyed before
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the optional object has been destroyed. The initialization state of the
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contained object is tracked by the optional object.
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