-- Simple File IO
with Ada.Text_IO; use Ada.Text_IO;
procedure Simple_FileIO is
My_File : File_Type;
File_Name : String := "test.txt";
begin
Put_Line("Create a file: " & File_Name);
Create(File => My_File,
Mode => Out_File,
Name => File_Name);
Put_Line(File => My_File,
Item => "Hello World!");
Put_Line("Open file: " & File_Name);
Reset (File => My_File,
Mode => In_File);
-- The following would also work instead of Reset:
--
-- Close(File => My_File);
--
-- Open(File => My_File,
-- Mode => In_File,
-- Name => File_Name);
declare
Line_Length : Natural;
Max_String_Length : constant := 255;
Output_String : String (1 .. Max_String_Length);
begin
Get_Line(File => My_File,
Item => Output_String,
Last => Line_Length);
Put_Line(Output_String (1 .. Line_Length));
end;
Delete(File => My_File);
-- The file could also just be closed instead of deleted
-- Close(File => My_File);
end Simple_FileIO;
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