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- ------------------------------------------------------------------------------
- -- --
- -- GNAT RUNTIME COMPONENTS --
- -- --
- -- A D A . C O M M A N D _ L I N E --
- -- --
- -- S p e c --
- -- --
- -- $Revision: 1.8 $ --
- -- --
- -- This specification is adapted from the Ada Reference Manual for use with --
- -- GNAT. In accordance with the copyright of that document, you can freely --
- -- copy and modify this specification, provided that if you redistribute a --
- -- modified version, any changes that you have made are clearly indicated. --
- -- --
- ------------------------------------------------------------------------------
-
- package Ada.Command_Line is
- pragma Preelaborate (Command_Line);
-
- function Argument_Count return Natural;
- -- If the external execution environment supports passing arguments to a
- -- program, then Argument_Count returns the number of arguments passed to
- -- the program invoking the function. Otherwise it return 0.
- --
- -- In GNAT: Corresponds to (argc - 1) in C.
-
- function Argument (Number : in Positive) return String;
- -- If the external execution environment supports passing arguments to
- -- a program, then Argument returns an implementation-defined value
- -- corresponding to the argument at relative position Number. If Number
- -- is outside the range 1 .. Argument_Count, then Constraint_Error is
- -- propagated.
- --
- -- in GNAT: Corresponds to argv [n] (for n > 0) in C.
-
- function Command_Name return String;
- -- If the external execution environment supports passing arguments to
- -- a program, then Command_Name returns an implementation-defined value
- -- corresponding to the name of the command invoking the program.
- -- Otherwise Command_Name returns the null string.
- --
- -- in GNAT: Corresponds to argv [0] in C.
-
- type Exit_Status is new Integer;
-
- Success : constant Exit_Status;
- Failure : constant Exit_Status;
-
- procedure Set_Exit_Status (Code : in Exit_Status);
- pragma Import (C, Set_Exit_Status, "set_gnat_exit_status");
-
- private
-
- Success : constant Exit_Status := 0;
- Failure : constant Exit_Status := 1;
- -- ??? Later these will be properly handled through Import variables.
-
- end Ada.Command_Line;
-