CODEWITHSUNDEEP
c++listreferenceconstants
wzsun
wzsun

Reputation: 425

Print out List using const &

Hey I have a list that has values in it, I want to print it out using const &. I can do it with by just referencing it but when I put const in I get an error. I'm not sure why this is the case because the code won't edit the list. This is my code.

// Prints out the list declared
template<typename DATA_TYPE>
    void print(const list<DATA_TYPE> &myList){
    for(list<DATA_TYPE>::iterator pos = myList.begin(); pos != myList.end(); pos++){
        DATA_TYPE currentWord = *pos;
        cout << currentWord << " ";
    }
}

If you could also go through the logic behind the error that'd be cool, Thanks.

Upvotes: 0

Views: 272

Answers (2)

Code-Apprentice
Code-Apprentice

Reputation: 83537

Since your list is declared as const, you need to use a const_iterator:

list<DATA_TYPE>::const_iterator pos

p.s. For future reference, please copy and paste any compiler errors that you get into your question.

Upvotes: 6

djechlin
djechlin

Reputation: 60788

Use const_iterator, not iterator.

Upvotes: 2

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