Class lsst::afw::typehandling::Key

template<typename K, typename V>
class Key

Key for type-safe lookup in a GenericMap.

Key objects are equality-comparable, hashable, sortable, or printable if and only if K is comparable, hashable, sortable, or printable, respectively. Key can be used in compile-time expressions if and only if K can (in particular, Key<std::string, V> cannot).

Template Parameters

• K: the logical type of the key (e.g., a string)

• V: the type of the value mapped to this key