Want to protect your cyber security and still get fast solutions? Ask a secure question today.Go Premium

x
?
Solved

pointer to pointer as function parameter

Posted on 2012-03-25
3
Medium Priority
?
342 Views
Last Modified: 2012-03-25
Hi Experts,

A function prototype is given as below.  I need to use this to get the Network list.
Result_t Query::queryNetworkList(Network **list, int& size) const

Open in new window

How can I iterate through this list and find all the Network items.
I am thinking something like below.. but not sure how to deal with the list.
Thanks,
Network *list;
int size = 0;
Query q;
q->queryNetworkList(&list, size);
for( int i = 0; i < size; i++ )
{
 ....

}

Open in new window

0
Comment
Question by:ambuli
  • 2
3 Comments
 
LVL 33

Expert Comment

by:phoffric
ID: 37763110
for( int i = 0; i < size; i++,  ++list)
{
    Network currentNetwork = *list;
 ....

}
0
 
LVL 33

Accepted Solution

by:
phoffric earned 2000 total points
ID: 37763115
Query::queryNetworkList() should be returning the list pointer (that's why the method takes a **pointer - to allow it to modify and return the value into the caller's list pointer). It also returns the size of the Network List.

++list increments the list pointer by one element (not 1 byte) in the NetworkList array.
0
 

Author Closing Comment

by:ambuli
ID: 37763124
Thank you
0

Featured Post

Free Tool: Port Scanner

Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Preface I don't like visual development tools that are supposed to write a program for me. Even if it is Xcode and I can use Interface Builder. Yes, it is a perfect tool and has helped me a lot, mainly, in the beginning, when my programs were small…
Examines three attack vectors, specifically, the different types of malware used in malicious attacks, web application attacks, and finally, network based attacks.  Concludes by examining the means of securing and protecting critical systems and inf…
The goal of this video is to provide viewers with basic examples to understand how to create, access, and change arrays in the C programming language.
The viewer will be introduced to the technique of using vectors in C++. The video will cover how to define a vector, store values in the vector and retrieve data from the values stored in the vector.
Suggested Courses

578 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question