U++ forum: Welcome to the forum

Status & Roadmap

Authors & License

Funding Ultimate++

Search on this site

Search in forums

Home » U++ Library support » U++ Core » Core: Null handling incoherent?

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Return to the default flat view

Create a new topic

Submit Reply

Re: Core: Null handling incoherent? [message #32256 is a reply to message #32255]

Wed, 04 May 2011 11:39

kohait00 is currently offline

kohait00
Messages: 939
Registered: July 2009
Location: Germany

Experienced Contributor

attached is a patch for discussion. the IsNullInstance naming issue is not adressed yet.

benefits:

* more clear coherent interface because IsNullInstance, SetNull are obligatory
* users can use RichValue<> as container for even own intrinsic types like float.., specifying themselves the null handling.
(but float f = Null; still wont work, since it has no converter, but SetNull<float>() can, which is a nice price to pay.
* specifying AsString<T> they can use the Value::ToString for it as well, i.e AsString<float> is already specified..

i'd have considered to have

template <class T> void SetNull(T& x) { x = Null; }

to make SetNull method optional, but Null is kind a wired with Value, which, at level of Defs.h isn't known yet..

Attachment: patch0.patch
(Size: 5.77KB, Downloaded 229 times)

Report message to a moderator

Send a private message to this user

[Message index]

		Core: Null handling incoherent? By: kohait00 on Wed, 04 May 2011 10:46
		Re: Core: Null handling incoherent? By: kohait00 on Wed, 04 May 2011 11:39
		Re: Core: Null handling incoherent? By: kohait00 on Wed, 04 May 2011 13:38
		Re: Core: Null handling incoherent? By: mirek on Fri, 06 May 2011 09:55
		Re: Core: Null handling incoherent? By: kohait00 on Fri, 06 May 2011 10:43
		Re: Core: Null handling incoherent? By: mirek on Fri, 06 May 2011 13:06
		Re: Core: Null handling incoherent? By: kohait00 on Fri, 06 May 2011 14:07
		Re: Core: Null handling incoherent? By: kohait00 on Mon, 23 May 2011 13:40
		Re: Core: Null handling incoherent? By: kohait00 on Thu, 07 July 2011 08:30
		Re: Core: Null handling incoherent? By: mirek on Thu, 07 July 2011 10:29
		Re: Core: Null handling incoherent? By: kohait00 on Thu, 07 July 2011 10:35
		Re: Core: Null handling incoherent? By: kohait00 on Tue, 13 September 2011 18:08
		Re: Core: Null handling incoherent? By: cbpporter on Wed, 14 September 2011 09:46
		Re: Core: Null handling incoherent? By: kohait00 on Wed, 14 September 2011 12:46
		Re: Core: Null handling incoherent? By: mirek on Fri, 06 May 2011 09:52
		Re: Core: Null handling incoherent? By: mirek on Thu, 15 September 2011 12:57
		Re: Core: Null handling incoherent? By: kohait00 on Thu, 15 September 2011 14:29
		Re: Core: Null handling incoherent? By: mirek on Thu, 15 September 2011 15:34
		Re: Core: Null handling incoherent? By: kohait00 on Thu, 15 September 2011 16:30
		Re: Core: Null handling incoherent? By: mirek on Fri, 16 September 2011 10:26
		Re: Core: Null handling incoherent? By: kohait00 on Fri, 16 September 2011 15:26

Previous Topic:	[SOLVED] String.GetCount with umlaut
Next Topic:	read/write to /dev/rtp is happening .. but a small problem

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

PDF

]

Current Time: Sun Jul 06 01:53:08 CEST 2025

Total time taken to generate the page: 0.03514 seconds