iant") (C++17)  |  a type-safe discriminated union   
(class template)  [ [edit]
](https://en.cppreference.com/mwiki/index.php?title=Template:cpp/utility/dsc_variant&action=edit)  
[ any  ](/w/cpp/utility/any "cpp/utility/any") (C++17)  |  objects that hold instances of any [ CopyConstructible  ](/w/cpp/named_req/CopyConstructible "cpp/named req/CopyConstructible") type   
(class)  [ [edit]
](https://en.cppreference.com/mwiki/index.php?title=Template:cpp/utility/dsc_any&action=edit)  
  
###  [ [ edit
](/mwiki/index.php?title=cpp/utility/in_place&action=edit&section=2 "Edit
section: See also") ]  See also

[ sorted_unique  sorted_unique_t  ](/w/cpp/container/sorted_unique "cpp/container/sorted unique") (C++23)  |  a tag used to indicate that elements of a container or range are sorted and unique   
(tag)  [ [edit]
](https://en.cppreference.com/mwiki/index.php?title=Template:cpp/container/dsc_sorted_unique&action=edit)  
---|---  
[ sorted_equivalent  sorted_equivalent_t  ](/w/cpp/container/sorted_equivalent "cpp/container/sorted equivalent") (C++23)  |  a tag used to indicate that elements of a container or range are sorted (uniqueness is not required)   
(tag)  [ [edit]
](https://en.cppreference.com/mwiki/index.php?title=Template:cpp/container/dsc_sorted_equivalent&action=edit)  
  
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