Reset

Opens an existing file.

Structure

Reset(var F [: File; RecSize: Word ] );

Parameters

Description

Reset opens the existing external file with the name assigned to F. An error results if no existing external file of the given name exists. If F is already open, it is first closed and then reopened. The current file position is set to the beginning of the file.

F is a variable of any file type associated with an external file using AssignFile. RecSize is an optional expression, which can be specified only if F is an untyped file. If F is an untyped file, RecSize specifies the record size to be used in data transfers. If RecSize is omitted, a default record size of 128 bytes is assumed.

If F is assigned an empty name, such as AssignFile(F, ''), then after the call to Reset, F refers to the standard input file.

If F is a text file, F becomes read-only.

After a call to Reset, Eof(F) is True if the file is empty; otherwise, Eof(F) is False. |