nks.
在 日, 2月 24, 2013 at 4:21 下午，leledumbo 写道：
FPC operator overloading doesn't work inside classes, it must be declared
globally, so method2 should work. What error do you get? What FPC version do
you use?
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On 24.02.2013 16:02, xrfang wrote:
I will test again tomorrow to find out what's wrong with my code. For
now, one more queston:
I noticed that generics does not work without {$mode objfpc}. I wonder
what is the default mode without $mode? Why objfpc is not the default mode?
The default mode
> Both variants will work. The variant with "b: Boolean" was originally
> introduced for the non-Object-Pascal modes (fpc, tp), because there you
> only have the name of the procedure/function as a result variable and as
> operators don't have names (in that sense) you can specify the name of
>
On 24.02.2013 08:31, xrfang wrote:
Hi All,
How can I use operator overloading? I know the syntax, but it simply
does not compile... My situation is:
1. I wrote a TTreap generic class, which is a binary tree.
2. TTreap defines a Compare() with involves < and > operation on its keys.
3. I try t
道：
On 24.02.2013 15:51, Wildfire wrote:
> *From:* xrfang
> *Sent:* Sunday, February 24, 2013 7:31 AM
> *To:* Lazarus@lists.lazarus.freepascal.org
>
> *Subject:* [Lazarus] operator overloading
> > operator < (p1, p2: TPainter) b: Boolean; <—method2
> Close, bu
On 24.02.2013 15:51, Wildfire wrote:
*From:* xrfang <mailto:xrf...@gmail.com>
*Sent:* Sunday, February 24, 2013 7:31 AM
*To:* Lazarus@lists.lazarus.freepascal.org
<mailto:Lazarus@lists.lazarus.freepascal.org>
*Subject:* [Lazarus] operator overloading
> operator < (p1, p2: TP
From: xrfang
Sent: Sunday, February 24, 2013 7:31 AM
To: Lazarus@lists.lazarus.freepascal.org
Subject: [Lazarus] operator overloading
> operator < (p1, p2: TPainter) b: Boolean; <—method2
Close, but no cigar...
operator < (p1, p2: TPaint
FPC operator overloading doesn't work inside classes, it must be declared
globally, so method2 should work. What error do you get? What FPC version do
you use?
--
View this message in context:
http://free-pascal-lazarus.989080.n3.nabble.com/Lazarus-operator-overloading-tp4029399p4029400
Hi All,
How can I use operator overloading? I know the syntax, but it simply does not
compile... My situation is:
1. I wrote a TTreap generic class, which is a binary tree.
2. TTreap defines a Compare() with involves < and > operation on its keys.
3. I try to specialize it with the following:
overload the := operator instead. Search for the free pascal docs on
operator overloading.
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Felipe Monteiro de Carvalho
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2010/10/22 Birger Jansen :
> Hi,
>
> In Delphi you can overload the Explicit operator. This makes is possible to
> have a type TTypeX and TTypeY and cast one into the other. To do that,
> implement an operator overloader:
> operator Explicit(const AValue: TTypeX): TTypeY.
> // implement convers
Hi,
In Delphi you can overload the Explicit operator. This makes is possible to
have a type TTypeX and TTypeY and cast one into the other. To do that,
implement an operator overloader:
operator Explicit(const AValue: TTypeX): TTypeY.
// implement converstio from TTypeX to TTypeY.
Then you c
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