This Annex is partially supported. The missing language features are prohibited by the restrictions No_Allocators and No_IO.
The following list gives language features that are not available.
Unchecked_Deallocation (Concerns allocators)
Direct_IO (Prohibited by restriction No_IO)
IO_Exceptions (Prohibited by restriction No_IO)
Sequential_IO (Prohibited by restriction No_IO)
Text_IO (Prohibited by restriction No_IO)