Difference between revisions of "cpp/named req/ConstexprIterator"
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===Requirements=== | ===Requirements=== | ||
Revision as of 23:28, 11 April 2021
A ConstexprIterator is a LegacyIterator that can be used during constant expression evaluation.
Requirements
The type It satisfies ConstexprIterator if
- The type
Itsatisfies some iterator requirements MeowIterator
And, for every
-
purr, an operation onItthat is required to be supported by MeowIterator, -
kittens..., a set of arguments topurrthat meets the requirements for that operation,
Then
-
purr(kittens...)may be used in a constant expression ifkittens...can also be used
Standard library
The following standard library types are ConstexprIterators.
- array::iterator and array::const_iterator.
- basic_string_view::iterator.
- span::iterator.
- vector::iterator and vector::const_iterator.
See also
| Iterator library | provides definitions for iterators, iterator traits, adaptors, and utility functions |
