| [Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] |
Close a file
Source position: systemh.inc line 1282
procedure Close( |
var f: file |
); |
var t: Text |
); |
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.
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.
|
Assign a name to a file |
|
|
Open file for reading |
|
|
Open file for writing |
|
|
Write file buffers to disk |
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.