std::experimental::ranges:: IndirectUnaryInvocable, std::experimental::ranges:: IndirectRegularUnaryInvocable

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C++
Experimental
Ranges
Iterators library
Iterator concepts
Indirect callable concepts
IndirectUnaryInvocable IndirectRegularUnaryInvocable
Common algorithm requirements
Concept utilities
Iterator utilities and operations
Iterator traits
Iterator adaptors
Stream iterators
template < class F, class I >

concept bool IndirectUnaryInvocable =
Readable < I > && CopyConstructible < F > &&
Invocable < F & , ranges :: value_type_t < I > & > &&
Invocable < F & , ranges :: reference_t < I >> &&
Invocable < F & , ranges :: iter_common_reference_t < I >> &&
CommonReference <
std:: result_of_t < F & ( ranges :: value_type_t < I > & ) > ,

std:: result_of_t < F & ( ranges :: reference_t < I > && ) >> ;
(ranges TS)
template < class F, class I >

concept bool IndirectRegularUnaryInvocable =
Readable < I > && CopyConstructible < F > &&
RegularInvocable < F & , ranges :: value_type_t < I > & > &&
RegularInvocable < F & , ranges :: reference_t < I >> &&
RegularInvocable < F & , ranges :: iter_common_reference_t < I >> &&
CommonReference <
std:: result_of_t < F & ( ranges :: value_type_t < I > & ) > ,

std:: result_of_t < F & ( ranges :: reference_t < I > && ) >> ;
(ranges TS)
This section is incomplete
Reason: add description and extra caveats
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