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Difference between revisions of "cpp/named req/ConstexprIterator"

From cppreference.com
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* {{ltt|cpp/container/span|span::iterator}}.
 
* {{ltt|cpp/container/span|span::iterator}}.
 
* {{ltt|cpp/container/vector|vector::iterator}} and {{ltt|cpp/container/vector|vector::const_iterator}}.
 
* {{ltt|cpp/container/vector|vector::iterator}} and {{ltt|cpp/container/vector|vector::const_iterator}}.
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* {{ltt|cpp/utility/optional|optional::iterator}} and {{ltt|cpp/utility/optional|optional::const_iterator}}
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===See also===
 
===See also===

Latest revision as of 16:08, 25 August 2024

 
 
C++ named requirements
 

A ConstexprIterator is a LegacyIterator that can be used during constant expression evaluation.

[edit] Requirements

The type It satisfies ConstexprIterator if

  • The type It satisfies some iterator requirements MeowIterator

And, for every

  • purr, an operation on It that is required to be supported by MeowIterator,
  • kittens..., a set of arguments to purr that meets the requirements for that operation,

Then

  • purr(kittens...) may be used in a constant expression if kittens... can also be used.

[edit] Standard library

The following standard library types are ConstexprIterators.

(since C++26)

[edit] See also

Iterator library provides definitions for iterators, iterator traits, adaptors, and utility functions