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    Close

    Close a file.

    Declaration

    Source position: systemh.inc line 1453

    procedure Close(var f: File);

    procedure Close(var t: Text);

    Description

    Close flushes the buffer of the file F and closes F. After a call to Close, data can no longer be read from or written to F. To reopen a file closed with Close, it isn't necessary to assign the file again. A call to Reset or Rewrite is sufficient.

    Errors

    Depending on the state of the {$I} switch, a runtime error can be generated if there is an error. In the {$I-} state, use IOResult to check for errors.

    See also

    Name Description
    Assign Assign a name to a file.
    Reset Open file for reading.
    Rewrite Open file for writing.
    Flush Write file buffers to disk.

    Example

    Program Example9;

{ Program to demonstrate the Close function. }

Var F : text;

begin
 Assign (f,'Test.txt');
 ReWrite (F);
 Writeln (F,'Some text written to Test.txt');
 close (f); { Flushes contents of buffer to disk,
              closes the file. Omitting this may
              cause data NOT to be written to disk.}
end.