BloombergLP::bdlar::SequenceRef::accessAttribute

Invoke the specified accessor on the (non‐modifiable) attribute of the referred sequence object indicated by the specified attributeName and attributeNameLength, supplying accessor with the corresponding attribute information structure. The supplied accessor must be a callable type that can be called as if it had the following signature: ` template <class t_INFO> int accessor(const ATTRIBUTE& refOrValue, const t_INFO& info); ` Return non‐zero value if the attribute is not found, and the value returned from the invocation of accessor otherwise.