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Close

Declaration:
Procedure Close (Var F : Anyfiletype);
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 (558) or Rewrite (559) 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:
Assign (455), Reset (558), Rewrite (559), Flush (502)

Listing: refex/ex9.pp

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.

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