Difference between revisions of "cpp/named req/ConstexprIterator"
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(After [https://wg21.link/LWG3320 3320] the span::const_iterator was annihilated)) |
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* {{ltt|cpp/string/basic_string_view|basic_string_view::iterator}}. | * {{ltt|cpp/string/basic_string_view|basic_string_view::iterator}}. | ||
* {{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}}. | ||
===See also=== | ===See also=== | ||
Revision as of 01:30, 31 May 2020
A ConstexprIterator is an 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 be so 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.
