Re: Taking values from Queue

From:
"Victor Bazarov" <v.Abazarov@comAcast.net>
Newsgroups:
comp.lang.c++
Date:
Thu, 18 Oct 2007 12:45:56 -0400
Message-ID:
<ff82k4$7bh$1@news.datemas.de>
Donos wrote:

I am working on a design in which there is a Queue which will read
data from a database. This happens in one particular class.

Class CRecieveData
{
 std::queue<unsigned char> m_RxQueue;
}

Here the data is added into Queue using "push" function.

Now as per the design i have to extract the data from Queue in another
Class using Deque.

class CDecodeData
{
      // Need to add code here to extract data from Queue declared
in another class, using Deque Iterator
}

ie, by using an Iterator of Deque.

Can anyone tell me how to do this?


Nobody can tell you. There is no way to extract an object from
a std::queue using an object of an unrelated type (iterator to some
std::deque). Even though 'std::queue' can be implemented using
'std::deque' as its underlying container, there is no standard way
to go from an iterator to a 'deque' to the 'queue' the 'deque' is
used to implement. Make sure the reference to the actual 'queue'
is passed to your scope.

V
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