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<div class="moz-cite-prefix">Am 24.09.2013 15:50, schrieb Xiangrong
Fang:<br>
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<div class="gmail_quote">Hi Sven,<br>
<br>
2013/9/23 Xiangrong Fang <span dir="ltr"><<a
moz-do-not-send="true" href="mailto:xrfang@gmail.com"
target="_blank">xrfang@gmail.com</a>></span><br>
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<p>Short answer: you can't. The same would
happen with normal classes.</p>
<p>Long answer: You could add an additional
method "Next" to your "TIntTree" which returns
a "TIntTree" and just do "Result :=
TIntTree(inherited Next);" there. <br>
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<div>I still have problem with this strange issue. See the
demo program below:<br>
<br>
<span style="font-family:courier new,monospace">program
test;<br>
{$mode objfpc}{$H+}<br>
uses treap;<br>
type<br>
TStringMapper = class(specialize TTreap<string,
string>)<br>
end;<br>
var<br>
sm1, sm2: TStringMapper;<br>
n: TStringMapper.PNode;<br>
begin<br>
sm1 := TStringMapper.Create;<br>
for n in sm1.Reversed do WriteLn(n^.Key); <-- but
NOT here<br>
sm2 := sm1.Reversed; <--
error here<br>
end.<br>
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How is PNode declared? What is the exact error?<br>
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<div><span style="font-family:courier new,monospace">Why is
this? Also, I found that the keyword "specialize" is
recognized in fpc mode, but "class" is only valid in
objfpc mode, is that correct?<br>
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"specialize" is used in all modes except mode Delphi for
specializations. "class" is available in all modes except "iso",
"tp" and "fpc", but can be enabled there using {$modeswitch class}.<br>
<br>
Regards,<br>
Sven<br>
<br>
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