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Re: Writing Bits object to disk [message #47963 is a reply to message #47960]

Thu, 27 April 2017 23:50

mirek is currently offline

mirek
Messages: 14257
Registered: November 2005

Ultimate Member

Problem with this approach is that you have to create intput Vector<bool> argument first, which is likely to spoil any benefits from faster Bits...

Really, this is the issue - to improve speed here, the interface is problem.

Some possible solutions that came to my mind:

void Bits::Set(int pos, int count, dword bits);

Here count <= 32 and you are passing values in bits dword; that would work if you are packing some normal data into Bits.

template
void Bits::Set(int pos, int count, auto lambda /* [=] (int pos) -> bool */)

Here we would provide lambda that returns value for given position - if compiler is good, it should inline well.

tempalte
void Bits::Set(int pos, bool x ...)

Maybe vararg template is a possible solution to the problem too.

Now the question is: How are you using Bits?

Mirek

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[Message index]

		Writing Bits object to disk By: crydev on Wed, 11 January 2017 17:07
		Re: Writing Bits object to disk By: mr_ped on Thu, 12 January 2017 01:20
		Re: Writing Bits object to disk By: crydev on Thu, 12 January 2017 09:03
		Re: Writing Bits object to disk By: mirek on Fri, 13 January 2017 08:39
		Re: Writing Bits object to disk By: crydev on Wed, 18 January 2017 08:51
		Re: Writing Bits object to disk By: crydev on Mon, 24 April 2017 19:19
		Re: Writing Bits object to disk By: mirek on Mon, 24 April 2017 21:08
		Re: Writing Bits object to disk By: crydev on Tue, 25 April 2017 09:36
		Re: Writing Bits object to disk By: dolik.rce on Tue, 25 April 2017 09:48
		Re: Writing Bits object to disk By: mirek on Tue, 25 April 2017 10:31
		Re: Writing Bits object to disk By: mirek on Tue, 25 April 2017 10:34
		Re: Writing Bits object to disk By: crydev on Tue, 25 April 2017 11:37
		Re: Writing Bits object to disk By: mirek on Tue, 25 April 2017 11:59
		Re: Writing Bits object to disk By: mirek on Tue, 25 April 2017 12:38
		Re: Writing Bits object to disk By: crydev on Tue, 25 April 2017 13:35
		Re: Writing Bits object to disk By: mirek on Tue, 25 April 2017 13:39
		Re: Writing Bits object to disk By: crydev on Tue, 25 April 2017 14:03
		Re: Writing Bits object to disk By: mirek on Tue, 25 April 2017 16:40
		Re: Writing Bits object to disk By: crydev on Wed, 26 April 2017 08:27
		Re: Writing Bits object to disk By: crydev on Wed, 26 April 2017 08:50
		Re: Writing Bits object to disk By: mirek on Wed, 26 April 2017 13:38
		Re: Writing Bits object to disk By: crydev on Thu, 27 April 2017 10:31
		Re: Writing Bits object to disk By: mirek on Thu, 27 April 2017 23:50
		Re: Writing Bits object to disk By: crydev on Fri, 28 April 2017 19:04
		Re: Writing Bits object to disk By: mirek on Sat, 29 April 2017 09:05
		Re: Writing Bits object to disk By: omari on Fri, 28 April 2017 19:31
		Re: Writing Bits object to disk By: mirek on Sat, 29 April 2017 09:53
		Re: Writing Bits object to disk By: crydev on Tue, 02 May 2017 22:54
		Re: Writing Bits object to disk By: mirek on Tue, 02 May 2017 23:55
		Re: Writing Bits object to disk By: crydev on Wed, 03 May 2017 09:00
		Re: Writing Bits object to disk By: mirek on Wed, 03 May 2017 09:53
		Re: Writing Bits object to disk By: crydev on Wed, 03 May 2017 11:12
		Re: Writing Bits object to disk By: mirek on Wed, 03 May 2017 11:27
		Re: Writing Bits object to disk By: crydev on Wed, 03 May 2017 12:24
		Re: Writing Bits object to disk By: mirek on Wed, 03 May 2017 12:37
		Re: Writing Bits object to disk By: crydev on Wed, 03 May 2017 18:33
		Re: Writing Bits object to disk By: crydev on Sat, 06 May 2017 10:28
		Re: Writing Bits object to disk By: crydev on Tue, 16 May 2017 09:12
		Re: Writing Bits object to disk By: mirek on Tue, 16 May 2017 10:39
		Re: Writing Bits object to disk By: mirek on Tue, 16 May 2017 13:12
		Re: Writing Bits object to disk By: crydev on Tue, 16 May 2017 20:17

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