Priority queue STL

hi. i made use of priority queue in stl...
well i know tat its not possible to iterate each and every elemnt in the q.

wat i need is to update certain queue value as a part of my algorithm....

i need not push the updated value as a new elemnt in the queue..
i want it to be updated...

any suggestions please

thanks

Don't use the priority_queue. Use a vector/queue/dequeue and sort everytime you enter something. Wrap it around a nice class to do this automatically.
Or use priority_queue and top() and pop() until you find what you want. Update and put the values back in. Not the best idea though.

There are dynamically updateable priority queues out there. A web search might reveal them.