Ada Reference Manual (Ada 2022)
A.16.2 The Packages Wide_Directories and Wide_Wide_Directories
The packages Wide_Directories and Wide_Wide_Directories provide operations for manipulating files and directories, and their names.
Static Semantics
The specification of package Wide_Directories is the same as for Directories (including its optional child packages Information and Hierarchical_File_Names), except that each occurrence of String is replaced by Wide_String.
The specification of package Wide_Wide_Directories is the same as for Directories (including its optional child packages Information and Hierarchical_File_Names), except that each occurrence of String is replaced by Wide_Wide_String.