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Re: Implicit initialization is EXCELLENT

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Ian Kelly wrote:
> On Wed, Jul 6, 2011 at 12:49 AM, Ulrich Eckhardt
> <ulrich.eckhardt@dominolaser.com> wrote:
>> Mel wrote:
>>> In wx, many of the window classes have Create methods, for filling in
>>> various attributes in "two-step construction". [...]
>>
>> Just guessing, is it legacy, C-with-classes code rather than C++ code
>> perhaps? Haven't looked at wx for a while. Such code typically lacks
>> understanding of exceptions, which are the only way to signal failure
>> from e.g. constructors.
> 
> No, wx is C++ through and through.

No namespaces. No templates but macros. No exceptions. No C++.

Sorry, I beg to differ. BTW, they say themselves that they tolerate but not 
use exceptions, so they actually need two-stage construction if construction 
can fail, and for exactly the guessed legacy reasons.


> http://wiki.wxpython.org/TwoStageCreation

A C++ object is not a window, it is rather a proxy for managing the window. 
As such, it can be attached or detached from the underlying window, just 
like a std::fstream, so in this light it makes sense actually. Thanks for 
the link!

Uli


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Implicit initialization is EXCELLENT Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-07-06 01:26 +1000
  Re: Implicit initialization is EXCELLENT "Michel Claveau - MVP"<enleverLesX_XXmcX@XmclavXeauX.com.invalid> - 2011-07-05 21:04 +0200
  Re: Implicit initialization is EXCELLENT Mel <mwilson@the-wire.com> - 2011-07-05 15:27 -0400
    Re: Implicit initialization is EXCELLENT Ulrich Eckhardt <ulrich.eckhardt@dominolaser.com> - 2011-07-06 08:49 +0200
      Re: Implicit initialization is EXCELLENT Ian Kelly <ian.g.kelly@gmail.com> - 2011-07-06 10:26 -0600
        Re: Implicit initialization is EXCELLENT Mel <mwilson@the-wire.com> - 2011-07-06 12:36 -0400
        Re: Implicit initialization is EXCELLENT Ulrich Eckhardt <ulrich.eckhardt@dominolaser.com> - 2011-07-07 09:12 +0200
          Re: Implicit initialization is EXCELLENT Ian Kelly <ian.g.kelly@gmail.com> - 2011-07-07 09:58 -0600
  Re: Implicit initialization is EXCELLENT Stefaan Himpe <stefaan.himpe@gmail.com> - 2011-07-05 21:31 +0200
    Re: Implicit initialization is EXCELLENT John Gordon <gordon@panix.com> - 2011-07-05 21:02 +0000
      Re: Implicit initialization is EXCELLENT John Gordon <gordon@panix.com> - 2011-07-05 21:58 +0000
    Re: Implicit initialization is EXCELLENT Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-07-06 21:44 +1000
      Re: Implicit initialization is EXCELLENT Stefaan Himpe <stefaan.himpe@gmail.com> - 2011-07-06 14:44 +0200
        Re: Implicit initialization is EXCELLENT Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-07-07 09:40 +1000
  Re: Implicit initialization is EXCELLENT rantingrick <rantingrick@gmail.com> - 2011-07-05 18:53 -0700
    Re: Implicit initialization is EXCELLENT Chris Angelico <rosuav@gmail.com> - 2011-07-06 12:44 +1000
      Re: Implicit initialization is EXCELLENT rantingrick <rantingrick@gmail.com> - 2011-07-05 20:45 -0700
        Re: Implicit initialization is EXCELLENT Chris Angelico <rosuav@gmail.com> - 2011-07-06 13:54 +1000
    Re: Implicit initialization is EXCELLENT Ulrich Eckhardt <ulrich.eckhardt@dominolaser.com> - 2011-07-06 08:45 +0200

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