<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=ISO-8859-1">
</head>
<body text="#000000" bgcolor="#FFFFFF">
Another question that never got answered. Yet I would expect, that
either it is implemented with intend, then someone must know. <br>
Or it is a bug then that should be checked? <br>
<br>
If no one knows, shall I assume it is a bug, and report it?<br>
<br>
<div class="moz-forward-container"><br>
-------- Original Message --------
<table class="moz-email-headers-table" border="0" cellpadding="0"
cellspacing="0">
<tbody>
<tr>
<th valign="BASELINE" align="RIGHT" nowrap="nowrap">Subject:
</th>
<td>[fpc-devel] override works, even if result type changed?</td>
</tr>
<tr>
<th valign="BASELINE" align="RIGHT" nowrap="nowrap">Date: </th>
<td>Sun, 23 Feb 2014 16:56:26 +0000</td>
</tr>
<tr>
<th valign="BASELINE" align="RIGHT" nowrap="nowrap">From: </th>
<td>Martin Frb <a class="moz-txt-link-rfc2396E" href="mailto:lazarus@mfriebe.de"><lazarus@mfriebe.de></a></td>
</tr>
<tr>
<th valign="BASELINE" align="RIGHT" nowrap="nowrap">Reply-To:
</th>
<td>FPC developers' list
<a class="moz-txt-link-rfc2396E" href="mailto:fpc-devel@lists.freepascal.org"><fpc-devel@lists.freepascal.org></a></td>
</tr>
<tr>
<th valign="BASELINE" align="RIGHT" nowrap="nowrap">To: </th>
<td>FPC developers' list
<a class="moz-txt-link-rfc2396E" href="mailto:fpc-devel@lists.freepascal.org"><fpc-devel@lists.freepascal.org></a></td>
</tr>
</tbody>
</table>
<br>
<br>
<pre>Just found that the below works.
Note, that the result type of "a" (overridden) is different.
Well, TFoo2 will always satisfy the needs of TFoo, so it seems save. I
still found it surprising. Is it intended?
program Project1;
type
TFoo= class
public
function a: TFoo; virtual;
end;
TFoo2= class(TFoo)
public
function a: TFoo2; override;
end;
function TFoo2.a: TFoo2;
begin
end;
function TFoo.a: TFoo;
begin
end;
begin
end.
_______________________________________________
fpc-devel maillist - <a class="moz-txt-link-abbreviated" href="mailto:fpc-devel@lists.freepascal.org">fpc-devel@lists.freepascal.org</a>
<a class="moz-txt-link-freetext" href="http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-devel">http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-devel</a>
</pre>
<br>
</div>
<br>
</body>
</html>