[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] Reference for unit 'System' (#rtl)

Assign

Assign a name to a file

Declaration

Source position: systemh.inc line 1168

procedure Assign(

  out f: file;

  const Name: ShortString

);

procedure Assign(

  out f: file;

  const p: PAnsiChar

);

procedure Assign(

  out f: file;

  const c: AnsiChar

);

procedure Assign(

  out f: file;

  const Name: UnicodeString

);

procedure Assign(

  out f: file;

  const Name: RawByteString

);

procedure Assign(

  out f: TypedFile;

  const Name: shortstring

);

procedure Assign(

  out f: TypedFile;

  const p: PAnsiChar

);

procedure Assign(

  out f: TypedFile;

  const c: AnsiChar

);

procedure Assign(

  out f: TypedFile;

  const Name: unicodestring

);

procedure Assign(

  out f: TypedFile;

  const Name: RawByteString

);

procedure Assign(

  out t: Text;

  const s: shortstring

);

procedure Assign(

  out t: Text;

  const p: PAnsiChar

);

procedure Assign(

  out t: Text;

  const c: AnsiChar

);

procedure Assign(

  out t: Text;

  const s: unicodestring

);

procedure Assign(

  out t: Text;

  const s: RawByteString

);

Description

Assign assigns a name to F, which can be any file type. This call doesn't open the file, it just assigns a name to a file variable, and marks the file as closed.

Errors

None.

See also

Reset

  

Open file for reading

Rewrite

  

Open file for writing

Append

  

Open a file in append mode

Example

Program Example5;

{ Program to demonstrate the Assign function. }

Var F : text;

begin
  Assign (F,'');
  Rewrite (f);
  { The following can be put in any file by redirecting it
    from the command line.}
  Writeln (f,'This goes to standard output !');
  Close (f);
  Assign (F,'Test.txt');
  rewrite (f);
  writeln (f,'This doesn''t go to standard output !');
  close (f);
end.

Documentation generated on: Sep 28 2017