Difference between revisions of "cpp/named req/ConstexprIterator"
From cppreference.com
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| − | A {{tt|ConstexprIterator}} is an {{ | + | A {{tt|ConstexprIterator}} is an {{named req|Iterator}} that can be used during constant expression evaluation. |
===Requirements=== | ===Requirements=== | ||
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===Standard library=== | ===Standard library=== | ||
| − | The following standard library types are {{ | + | The following standard library types are {{named req|ConstexprIterator}}s. |
* {{ltt|cpp/container/array|array::iterator}}. | * {{ltt|cpp/container/array|array::iterator}}. | ||
Revision as of 14:28, 15 June 2018
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 conceptMeowIterator
And, for every
-
purr, an operation onItthat is required to be supported byMeowIterator, -
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, unlesspurris
- construction of
Itwith a singular value; - an explicit destructor call (if
Itis a class type); or - a pseudo-destructor call (if
Itis a scalar type)
- construction of
Standard library
The following standard library types are ConstexprIterators.
