Ada Programming/Attributes/'Input

Description Reads and returns one value from the Stream argument. For every subtype S of a specific type T: S'Input denotes a function with the following specification: function S'Input (Stream : not null access Ada.Streams.Root_Stream_Type'Class) return TS'Input reads and returns one value from Stream, using any bounds or discriminants written by a corresponding S'Output to determine how much to read. Example S’Input (Stream:access Ada.Streams.Root_Stream_Type’Class) return T