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 » what about VectorBiMap / ArrayBiMap ?

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: what about VectorBiMap / ArrayBiMap ? [message #26425 is a reply to message #26416]

Fri, 30 April 2010 14:45

kohait00 is currently offline

kohait00
Messages: 939
Registered: July 2009
Location: Germany

Experienced Contributor

hi Mindtraveller

this is actually exactly what i was adressing in
http://www.ultimatepp.org/forum/index.php?t=msg&th=5142& amp;start=0&

to return the responsibility of maintainig the hash/state of an object returned by T& Index::operator[] to the user.

say if a user modifies an element from Index (which is needed sometimes), he knows which element it was, and simply updates the internel hash ref of that object, calling SetKey(i) or sth. (analog to VectorMap::SetKey(i, key) )

add the follwing at
Index.h:127

	void     SetKey(int i)                   { hash.Set(i,hashfn(key[i])); }

	T&       operator[](int i)               { return key[i]; }

should do it. i discussed it there with mirek, he was hesitating.. which is sort of understandable, doing so, you might end up breaking consistency of Index if not carefull.

Report message to a moderator

Send a private message to this user

[Message index]

		what about VectorBiMap / ArrayBiMap ? By: kohait00 on Fri, 30 April 2010 09:55
		Re: what about VectorBiMap / ArrayBiMap ? By: mirek on Fri, 30 April 2010 10:49
		Re: what about VectorBiMap / ArrayBiMap ? By: Mindtraveller on Fri, 30 April 2010 13:13
		Re: what about VectorBiMap / ArrayBiMap ? By: kohait00 on Fri, 30 April 2010 14:45
		Re: what about VectorBiMap / ArrayBiMap ? By: kohait00 on Fri, 30 April 2010 16:32
		Re: what about VectorBiMap / ArrayBiMap ? By: mirek on Fri, 30 April 2010 22:54
		Re: what about VectorBiMap / ArrayBiMap ? By: kohait00 on Mon, 03 May 2010 22:37
		Re: what about VectorBiMap / ArrayBiMap ? By: mirek on Tue, 04 May 2010 16:29
		Re: what about VectorBiMap / ArrayBiMap ? By: kohait00 on Thu, 06 May 2010 20:38
		Re: what about VectorBiMap / ArrayBiMap ? By: mirek on Fri, 07 May 2010 14:37
		Re: what about VectorBiMap / ArrayBiMap ? By: kohait00 on Fri, 07 May 2010 17:59

Previous Topic:	_pick understanding
Next Topic:	FileMove behaviour

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

PDF

]

Current Time: Wed May 22 12:28:18 CEST 2024

Total time taken to generate the page: 0.02093 seconds