Can C 11 Vectors Hold `const T` Elements?

Does C 11 Permit vector?

In C 11, container requirements have undergone significant revisions. Unlike C 03, which imposed blanket requirements on containers, C 11 specifies finely-grained requirements for each container operation.

This change allows types that are copy-constructible but not assignable—such as structures with const members—to be stored in vectors, provided that only certain operations are performed.

However, does this imply that C 11 permits vector?

Answer

No. Despite similarities to structures with const members, const T is not a permissible element type according to the allocator requirements, which stipulate "non-const, non-reference object type."

Implication

Creating a vector of constant objects would be impractical, and a const vector would offer similar functionality.

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