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std::experimental::ranges:: Readable

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C++
Experimental
Ranges
Iterators library
Iterator concepts
Indirect callable concepts
Common algorithm requirements
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template < class In >

concept bool Readable =
requires {
typename ranges :: value_type_t < In > ;
typename ranges :: reference_t < In > ;
typename ranges :: rvalue_reference_t < In > ;
} &&
CommonReference < ranges :: reference_t < In > && , ranges :: value_type_t < In > & > &&
CommonReference < ranges :: reference_t < In > && , ranges :: rvalue_reference_t < In > && > &&

CommonReference < ranges :: rvalue_reference_t < In > && , const ranges :: value_type_t < In > & > ;
(范围 TS)

满足 Readable 概念的类型可通过应用 operator* 进行读取操作，例如指针、智能指针和迭代器。