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Home » U++ Library support » Draw, Display, Images, Bitmaps, Icons » Conditional jump or move depends on uninitialised value(s)

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Re: Conditional jump or move depends on uninitialised value(s) [message #19873 is a reply to message #19869]

Wed, 28 January 2009 16:21

mirek is currently offline

mirek
Messages: 14267
Registered: November 2005

Ultimate Member

mrjt wrote on Wed, 28 January 2009 03:46

I personally don't think this is a major issue:
1) All Upp 'basic' types (those with public member variables, Point_, Rect_ etc) exibit the same behaviour, so you only have to learn it once.
2) C++ convention is that variables are uninitialised, so you should be aware of the issue already. Buffer<int> x(2000); would be just as uninitialised.

On the other hand, in probably 99.9% of cases initialisation would be safer and come without any practical performance consequences.

Perhaps there is a case for having initialisation on by default, but available to be switched off with a compiler flag for those who really care?

I guess that pretty much sums what I think about the issue... Smile

Smile

Except I would not vote for the compiler flag and my wild estimate is more something like 95%....

Mirek

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[Message index]

		Conditional jump or move depends on uninitialised value(s) By: Novo on Mon, 26 January 2009 02:35
		Re: Conditional jump or move depends on uninitialised value(s) By: mirek on Mon, 26 January 2009 10:04
		Re: Conditional jump or move depends on uninitialised value(s) By: Novo on Mon, 26 January 2009 16:10
		Re: Conditional jump or move depends on uninitialised value(s) By: mirek on Mon, 26 January 2009 17:29
		Re: Conditional jump or move depends on uninitialised value(s) By: Novo on Tue, 27 January 2009 06:06
		Re: Conditional jump or move depends on uninitialised value(s) By: mirek on Tue, 27 January 2009 10:25
		Re: Conditional jump or move depends on uninitialised value(s) By: Novo on Wed, 28 January 2009 05:43
		Re: Conditional jump or move depends on uninitialised value(s) By: mrjt on Wed, 28 January 2009 09:46
		Re: Conditional jump or move depends on uninitialised value(s) By: mirek on Wed, 28 January 2009 16:21
		Re: Conditional jump or move depends on uninitialised value(s) By: Novo on Thu, 29 January 2009 02:56

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