std::experimental::erased_type
< cpp | experimental
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Defined in header
<experimental/utility> |
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struct erased_type { };
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(library fundamentals TS) (removed in library fundamentals TS v3) |
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The class erased_type is an empty struct that serves as a placeholder for a type in situations where the actual type is determined at runtime. For example, in classes that use type-erased allocators, the nested typedef allocator_type is an alias for erased_type.
Notes
erased_type is removed in LFTS v3 because std::pmr::polymorphic_allocator<> is preferable for type erasure.