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------------------------------------------------------------------------------
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
-- A D A . T E X T _ I O . E N U M E R A T I O N _ I O --
-- --
-- S p e c --
-- --
-- This specification is derived 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. --
-- --
------------------------------------------------------------------------------
-- In Ada 95, the package Ada.Text_IO.Enumeration_IO is a subpackage of
-- Text_IO. This is for compatibility with Ada 83. In GNAT we make it a
-- child package to avoid loading the necessary code if Enumeration_IO is
-- not instantiated. See routine Rtsfind.Check_Text_IO_Special_Unit for a
-- description of how we patch up the difference in semantics so that it
-- is invisible to the Ada programmer.
private generic
type Enum is (<>);
package Ada.Text_IO.Enumeration_IO with
Always_Terminates
is
Default_Width : Field := 0;
Default_Setting : Type_Set := Upper_Case;
procedure Get (File : File_Type; Item : out Enum) with
Pre => Is_Open (File) and then Mode (File) = In_File,
Global => (In_Out => File_System),
Exceptional_Cases => (Data_Error | End_Error => Standard.True);
procedure Get (Item : out Enum) with
Post =>
Line_Length'Old = Line_Length
and Page_Length'Old = Page_Length,
Global => (In_Out => File_System),
Exceptional_Cases => (Data_Error | End_Error => Standard.True);
procedure Put
(File : File_Type;
Item : Enum;
Width : Field := Default_Width;
Set : Type_Set := Default_Setting)
with
Pre => Is_Open (File) and then Mode (File) /= In_File,
Post =>
Line_Length (File)'Old = Line_Length (File)
and Page_Length (File)'Old = Page_Length (File),
Global => (In_Out => File_System),
Exceptional_Cases => (Layout_Error => Line_Length (File) /= 0);
procedure Put
(Item : Enum;
Width : Field := Default_Width;
Set : Type_Set := Default_Setting)
with
Post =>
Line_Length'Old = Line_Length
and Page_Length'Old = Page_Length,
Global => (In_Out => File_System),
Exceptional_Cases => (Layout_Error => Ada.Text_IO.Line_Length /= 0);
procedure Get
(From : String;
Item : out Enum;
Last : out Positive)
with
Global => null,
Exceptional_Cases => (Data_Error => Standard.True);
procedure Put
(To : out String;
Item : Enum;
Set : Type_Set := Default_Setting)
with
Global => null,
Exceptional_Cases => (Layout_Error => Standard.True);
end Ada.Text_IO.Enumeration_IO;
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