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pointer to pointer as function parameter

Posted on 2012-03-25
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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

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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++ )
{
 ....

}

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0
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Question by:ambuli
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3 Comments
 
LVL 32

Expert Comment

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

}
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Accepted Solution

by:
phoffric earned 500 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

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