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Table of Contents
4. Standard Units
4.67. System - Built-in routines
4.67.2. System Unit Procedures and Functions
4.67.2.3. Append procedure
4.67.2.3. Append procedure
Targets: MS-DOS, Win32
System Unit
Opens an existing file for appending.
Declaration:
procedure Append(var F: Text);
Append works only if the file exists. It sets the file pointer
to the end of the file. If F is open when Append is called
then F is first closed and then reopened. If one assigns an empty
file name to F, output will be directed to the standard output file.
Errors are returned through IOResult
if {$I-}.
If there are no errors then IOResult
returns zero.
Example:
{$ifndef __CON__}
This program must be compiled as console application only
{$endif}
var
Fi:Text;
begin
Assign(Fi, 'THE_FILE.TXT');
Append(Fi);
WriteLn(Fi, 'Just testing Append.');
Close(Fi);
end.
See also:
{$I} - I/O Checking Switch
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