Default arguments

My problem is that I want to call a fuction with an array as its parameter and I want it to display entiore contents of that array if I do not send any other parameter but if I send an index as another parameter, it should display only the contents of that index. This can be done through Default Parameter as O but it is not working correctly. How can I successfully do this?

Code:

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void func(int *ptr, int sz, int idx = -1) {
    if(idx != -1 && idx >= 0 && idx < sz) {
        cout << ptr[idx] << endl;
    } else {
        for(int i = 0; i < sz; ++i) {
            cout << ptr[i] << endl;
        }
    }
}

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Is that sort of what you mean?

Quote:

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Originally posted by parksie
idx != -1 && idx >= 0

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Mr. Parks! You should take some logic lessons soon!

I think I'll take them now...oops ;)

I'd started with != -1 then decided to put a check for anything out of bounds and forgot the -1 was still there...

Quote:

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My problem is that I want to call a fuction with an array as its parameter and I want it to display entiore contents of that array if I do not send any other parameter but if I send an index as another parameter, it should display only the contents of that index. This can be done through Default Parameter as O but it is not working correctly. How can I successfully do this?

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Why do you want to do this? VB habit? Get rid of immediately. For two different operations (by two different calls) have two different functions, ex displayall and displayone