The library package Text_IO has the following declaration: 2 with Ada.IO_Exceptions; package Ada.Text_IO is 3 type File_Type is limited private; 4 type File_Mode is (In_File, Out_File, Append_File); 5 type Count is range 0 .. implementation-defined; subtype Positive_Count is Count range 1 .. Count'Last; Unbounded : constant Count := 0; -- line and page length 6 subtype Field is Integer range 0 .. implementation-defined; subtype Number_Base is Integer range 2 .. 16; 7 8 9
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type Type_Set is (Lower_Case, Upper_Case); -- File Management procedure Create (File : in out File_Type; Mode : in File_Mode := Out_File; Name : in String := ""; Form : in String := ""); procedure Open (File : in out File_Type; Mode : in File_Mode; Name : in String; Form : in String := ""); procedure Close (File : in out File_Type); procedure Delete (File : in out File_Type); procedure Reset (File : in out File_Type; Mode : in File_Mode); procedure Reset (File : in out File_Type); function Mode (File : in File_Type) return File_Mode; function Name (File : in File_Type) return String; function Form (File : in File_Type) return String; function Is_Open(File : in File_Type) return Boolean; -- Control of default input and output files procedure Set_Input (File : in File_Type); procedure Set_Output(File : in File_Type); procedure Set_Error (File : in File_Type); function Standard_Input return File_Type; function Standard_Output return File_Type; function Standard_Error return File_Type; function Current_Input return File_Type; function Current_Output return File_Type; function Current_Error return File_Type; type File_Access is access constant File_Type; function Standard_Input return File_Access; function Standard_Output return File_Access; function Standard_Error return File_Access;
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procedure New_Line (File : in File_Type; Spacing : in Positive_Count := 1); procedure New_Line (Spacing : in Positive_Count := 1); procedure Skip_Line (File : in File_Type; Spacing : in Positive_Count := 1); procedure Skip_Line (Spacing : in Positive_Count := 1); function End_Of_Line(File : in File_Type) return Boolean; function End_Of_Line return Boolean; procedure New_Page (File : in File_Type); procedure New_Page; procedure Skip_Page (File : in File_Type); procedure Skip_Page; function End_Of_Page(File : in File_Type) return Boolean; function End_Of_Page return Boolean; function End_Of_File(File : in File_Type) return Boolean; function End_Of_File return Boolean; -- Character Input-Output procedure Get(File : in File_Type; Item : out Character); procedure Get(Item : out Character); procedure Put(File : in File_Type; Item : in Character); procedure Put(Item : in Character); procedure Look_Ahead (File : in File_Type; Item : out Character; End_Of_Line : out Boolean); procedure Look_Ahead (Item : out Character; End_Of_Line : out Boolean); procedure Get_Immediate(File : in File_Type; Item : out Character); procedure Get_Immediate(Item : out Character); procedure Get_Immediate(File : in File_Type; Item : out Character; Available : out Boolean); procedure Get_Immediate(Item : out Character; Available : out Boolean); -- String Input-Output procedure Get(File : in File_Type; Item : out String); procedure Get(Item : out String); procedure Put(File : in File_Type; Item : in String); procedure Put(Item : in String); procedure Get_Line(File : in File_Type; Item : out String; Last : out Natural); procedure Get_Line(Item : out String; Last : out Natural); procedure Put_Line(File : in File_Type; Item : in String); procedure Put_Line(Item : in String);
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-- Generic packages for Input-Output of Integer Types generic type Num is range ; package Integer_IO is Default_Width : Field := Num'Width; Default_Base : Number_Base := 10; procedure Get(File : in File_Type; Item : out Num; Width : in Field := 0); procedure Get(Item : out Num; Width : in Field := 0);
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procedure Put(File : in File_Type; Item : in Num; Width : in Field := Default_Width; Base : in Number_Base := Default_Base); procedure Put(Item : in Num; Width : in Field := Default_Width; Base : in Number_Base := Default_Base); procedure Get(From : in String; Item : out Num; Last : out Positive); procedure Put(To : out String; Item : in Num; Base : in Number_Base := Default_Base);
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end Integer_IO;
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-- Generic packages for Input-Output of Real Types generic type Num is digits ; package Float_IO is Default_Fore : Field := 2; Default_Aft : Field := Num'Digits–1; Default_Exp : Field := 3; procedure Get(File : in File_Type; Item : out Num; Width : in Field := 0); procedure Get(Item : out Num; Width : in Field := 0); procedure Put(File : in File_Type; Item : in Num; Fore : in Field := Default_Fore; Aft : in Field := Default_Aft; Exp : in Field := Default_Exp); procedure Put(Item : in Num; Fore : in Field := Default_Fore;
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Aft : in Field := Default_Aft; Exp : in Field := Default_Exp); 67
procedure Get(From : in String; Item : out Num; Last : out Positive); procedure Put(To : out String; Item : in Num; Aft : in Field := Default_Aft; Exp : in Field := Default_Exp); end Float_IO;
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generic type Num is delta digits ; package Decimal_IO is Default_Fore : Field := Num'Fore; Default_Aft : Field := Num'Aft; Default_Exp : Field := 0; procedure Get(File : in File_Type; Item : out Num; Width : in Field := 0); procedure Get(Item : out Num; Width : in Field := 0); procedure Put(File : in File_Type; Item : in Num; Fore : in Field := Default_Fore; Aft : in Field := Default_Aft; Exp : in Field := Default_Exp); procedure Put(Item : in Num; Fore : in Field := Default_Fore; Aft : in Field := Default_Aft; Exp : in Field := Default_Exp); procedure Get(From : in String; Item : out Num; Last : out Positive); procedure Put(To : out String; Item : in Num; Aft : in Field := Default_Aft; Exp : in Field := Default_Exp); end Decimal_IO; -- Generic package for Input-Output of Enumeration Types generic type Enum is (); package Enumeration_IO is Default_Width : Field := 0; Default_Setting : Type_Set := Upper_Case;
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procedure Get(File : in File_Type; Item : out Enum); procedure Get(Item : out Enum); procedure Put(File : in File_Type; Item : in Enum; Width : in Field := Default_Width; Set : in Type_Set := Default_Setting); procedure Put(Item : in Enum; Width : in Field := Default_Width; Set : in Type_Set := Default_Setting); procedure Get(From : in String; Item : out Enum; Last : out Positive); procedure Put(To : out String; Item : in Enum; Set : in Type_Set := Default_Setting); end Enumeration_IO; -- Exceptions Status_Error : exception renames IO_Exceptions.Status_Error; Mode_Error : exception renames IO_Exceptions.Mode_Error; Name_Error : exception renames IO_Exceptions.Name_Error; Use_Error : exception renames IO_Exceptions.Use_Error; Device_Error : exception renames IO_Exceptions.Device_Error; End_Error : exception renames IO_Exceptions.End_Error; Data_Error : exception renames IO_Exceptions.Data_Error; Layout_Error : exception renames IO_Exceptions.Layout_Error;
private ... -- not specified by the language end Ada.Text_IO;
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