Hello

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?

Thanks.

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
--
Please remove capital 'A's when replying by e-mail
I do not respond to top-posted replies, please don't ask

Ok. Like i said, the Queue is declared as,

std::queue<unsigned char> m_RxQueue;

and the data is pushed into Queue using,

m_RxQueue.push(*pBuf++);

Where pBuf is a unsigned char*

---------------------------------------------

And my question is, Now how can i extract the data back?

If not a Deque::Iterator, what other approach i can use to extract
data from Queue?

On 2007-10-18 20:19, Donos wrote:
> Ok. Like i said, the Queue is declared as,
>
> std::queue<unsigned char> m_RxQueue;
>
> and the data is pushed into Queue using,
>
> m_RxQueue.push(*pBuf++);
>
> Where pBuf is a unsigned char*
>
> ---------------------------------------------
>
> And my question is, Now how can i extract the data back?
>
> If not a Deque::Iterator, what other approach i can use to extract
> data from Queue?

front() and pop(), if they are not enough then a queue is not what you want.

--
Erik Wikström

Erik Wikström wrote:
> On 2007-10-18 20:19, Donos wrote:
>> Ok. Like i said, the Queue is declared as,
>>
>> std::queue<unsigned char> m_RxQueue;
>>
>> and the data is pushed into Queue using,
>>
>> m_RxQueue.push(*pBuf++);
>>
>> Where pBuf is a unsigned char*
>>
>> ---------------------------------------------
>>
>> And my question is, Now how can i extract the data back?
>>
>> If not a Deque::Iterator, what other approach i can use to extract
>> data from Queue?
>
> front() and pop(), if they are not enough then a queue is not what
> you want.

I am really trying hard not to use "RTFM" in my replies, yet they
do sometimes trickle through. How do you manage?

V
--
Please remove capital 'A's when replying by e-mail
I do not respond to top-posted replies, please don't ask

On 2007-10-18 21:06, Victor Bazarov wrote:
> Erik Wikstr�m wrote:
>> On 2007-10-18 20:19, Donos wrote:
>>> Ok. Like i said, the Queue is declared as,
>>>
>>> std::queue<unsigned char> m_RxQueue;
>>>
>>> and the data is pushed into Queue using,
>>>
>>> m_RxQueue.push(*pBuf++);
>>>
>>> Where pBuf is a unsigned char*
>>>
>>> ---------------------------------------------
>>>
>>> And my question is, Now how can i extract the data back?
>>>
>>> If not a Deque::Iterator, what other approach i can use to extract
>>> data from Queue?
>>
>> front() and pop(), if they are not enough then a queue is not what
>> you want.
>
> I am really trying hard not to use "RTFM" in my replies, yet they
> do sometimes trickle through. How do you manage?

I got a lot of spare time at the moment, so I can afford to be patient.

--
Erik Wikström

Erik Wikström wrote:
> On 2007-10-18 21:06, Victor Bazarov wrote:
>> Erik Wikstr�m wrote:
>>> On 2007-10-18 20:19, Donos wrote:
>>>> Ok. Like i said, the Queue is declared as,
>>>>
>>>> std::queue<unsigned char> m_RxQueue;
>>>>
>>>> and the data is pushed into Queue using,
>>>>
>>>> m_RxQueue.push(*pBuf++);
>>>>
>>>> Where pBuf is a unsigned char*
>>>>
>>>> ---------------------------------------------
>>>>
>>>> And my question is, Now how can i extract the data back?
>>>>
>>>> If not a Deque::Iterator, what other approach i can use to extract
>>>> data from Queue?
>>> front() and pop(), if they are not enough then a queue is not what
>>> you want.
>> I am really trying hard not to use "RTFM" in my replies, yet they
>> do sometimes trickle through. How do you manage?
>
> I got a lot of spare time at the moment, so I can afford to be patient.
>

You've got a lot more patience than me, alas.