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Re: Core chat... [message #12324 is a reply to message #12323]

Wed, 24 October 2007 23:36

mdelfede is currently offline

mdelfede
Messages: 1308
Registered: September 2007

Ultimate Contributor

luzr wrote on Wed, 24 October 2007 22:05

Well, in that case, just do not use it:)

Impossible, if some library that I use do use it Razz

Razz

Quote:

Well but that is completely different issue altogether... But be sure that Vector code is not badly written Smile

Smile

I never thought that Smile

Smile

That was only an example of how it can be made different. Your Vector::Checksize() can also be made working exponentially, just drop the second argument and change code inside it... even more easy to use.

a.CheckSize(i);
a[i] = i;

in previous example. The matter doesn't change. All you spare with At() is a line of code at a cost of the danger of hidden bugs.....

Quote:

Growing by static chunks is very stupid method. You always need exponential growth - this is the same for NTL and STL. In that case, the total number of copying stuff is amortized constant - both for STL and NTL (but for NTL, unlike STL, the copy of Vector element is performed by raw binary move, which can be much faster).

I told you that I'm not the boggest fan of STL Smile

Smile

Quote:

Current At method is more optimal.

More than my example with linear/constant growth, ok.
But with exponential growth, all you spare is a line of code.

Quote:

Why should you duplicate operator[] with a method?

You shouldn't. If the only purpose of At() is allow creating elements on the fly just before accessing them, I see on it no true benefit, besides some 20 keystrokes less typing.

Quote:

BTW, if you want to study easy to undestand practical examples of using At, look at ArrayCtrl::SetDisplay or Switch::Set.

I'll look for it next days, thanx !

Ciao

Max

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[Message index]

		Core chat... (reference counted pointers etc.) By: mirek on Tue, 23 October 2007 23:48
		Re: Core chat... By: cbpporter on Wed, 24 October 2007 15:30
		Re: Core chat... By: mirek on Wed, 24 October 2007 16:37
		Re: Core chat... By: cbpporter on Wed, 24 October 2007 16:44
		Re: Core chat... By: mdelfede on Wed, 24 October 2007 17:46
		Re: Core chat... By: mirek on Wed, 24 October 2007 18:23
		Re: Core chat... By: mdelfede on Wed, 24 October 2007 20:24
		Re: Core chat... By: mirek on Wed, 24 October 2007 22:05
		Re: Core chat... By: mdelfede on Wed, 24 October 2007 23:36
		Re: Core chat... By: mirek on Thu, 25 October 2007 05:33
		Re: Core chat... By: mdelfede on Thu, 25 October 2007 14:06
		Re: Core chat... By: mirek on Thu, 25 October 2007 14:34
		Re: Core chat... By: mdelfede on Thu, 25 October 2007 15:19
		Re: Core chat... By: mirek on Thu, 25 October 2007 18:02
		Re: Core chat... By: mdelfede on Thu, 25 October 2007 19:52
		Re: Core chat... By: mirek on Thu, 25 October 2007 21:33
		Re: Core chat... By: mdelfede on Thu, 25 October 2007 23:26
		Re: Core chat... By: mirek on Thu, 25 October 2007 23:38
		Re: Core chat... By: mdelfede on Thu, 25 October 2007 23:47
		Re: Core chat... By: mirek on Fri, 26 October 2007 09:36
		Re: Core chat... By: mdelfede on Fri, 26 October 2007 12:13
		Re: Core chat... By: mirek on Fri, 26 October 2007 12:42
		Re: Core chat... By: mdelfede on Fri, 26 October 2007 13:03
		Re: Core chat... By: mirek on Fri, 26 October 2007 14:01
		Re: Core chat... By: mdelfede on Fri, 26 October 2007 14:18
		Re: Core chat... By: mirek on Fri, 26 October 2007 22:09
		Re: Core chat... By: mdelfede on Fri, 26 October 2007 23:13
		Re: Core chat... By: mirek on Fri, 26 October 2007 23:51
		Re: Core chat... By: mdelfede on Fri, 26 October 2007 18:47
		Re: Core chat... By: mirek on Fri, 26 October 2007 22:12
		Re: Core chat... By: mdelfede on Fri, 26 October 2007 23:09
		Re: Core chat... By: mirek on Fri, 26 October 2007 23:55
		Re: Core chat... By: mdelfede on Sat, 27 October 2007 11:08
		Re: Core chat... By: mirek on Sat, 27 October 2007 11:16
		Re: Core chat... By: mdelfede on Sat, 27 October 2007 13:06
		Re: Core chat... By: mirek on Sat, 27 October 2007 14:50
		Re: Core chat... By: mdelfede on Sat, 27 October 2007 15:21
		Re: Core chat... By: mirek on Sat, 27 October 2007 16:02
		Re: Core chat... By: mdelfede on Sat, 27 October 2007 16:28
		Re: Core chat... By: sergei on Wed, 24 October 2007 19:49
		Re: Core chat... By: mdelfede on Wed, 24 October 2007 20:06
		Re: Core chat... By: mirek on Wed, 24 October 2007 21:46

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