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POiterate through list of linked list
 

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  1. POiterate through list of linked list
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    <p>I am kind of new to c++ and got headache with this pointer and stuff!</p> <p>I need to iterate through list of struct which is linked list, read the data of struct and pop that entry! </p> <p>this my struct :</p> <pre><code>struct node { map&lt;string,double&gt; candidates; double pathCost; string source; node *next; // the reference to the next node }; </code></pre> <p>by reading <a href="https://stackoverflow.com/questions/1085489/stl-list-to-hold-structure-pointers">this</a> post I create my list like :</p> <pre><code>list&lt;node*&gt; nodeKeeper; </code></pre> <p>and then initialized the first value:</p> <pre><code> node *head; head= new node; head-&gt;pathCost = 0.0; head-&gt;source="head"; head-&gt;next = NULL; </code></pre> <p>thin fill the list and struct :</p> <pre><code>for(unsigned int i = 0; i &lt; sourceSentence.size(); i++){ node *newNode= new node; //create a temporary node //DO STUFF HERE //push currunt node to stack nodeKeeper.push_back(newNode); head = newNode; } </code></pre> <p>now I have list of struct and I want to iterate through it and pop the elements:</p> <pre><code>for (list&lt;node*&gt;::const_iterator it=nodeKeeper.begin();it!=nodeKeeper.end();it++){ it-&gt;pop_front(); } </code></pre> <p>which gives me this error:</p> <blockquote> <p>error: request for member 'pop_front' in '* it.std::_List_const_iterator&lt;_Tp>::operator->()', which is of pointer type 'node* const' (maybe you meant to use '->' ?) make: *** [main3.o] Error 1</p> </blockquote> <p>It looks like that my iterator points inside the list , not the list itself! </p> <p>Can you tell me what is wrong here?!</p>
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    1. USMoj
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    1. COWhy not using a `list` of `list`s, if you're allowed to use STL?
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      1. USAndy Prowl
    2. CO@bilz Yes I also tried that! I as said I am new to c++, I am just trying everything that read
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    3. CO@AndyProwl how does that help? I need to have pointer to next node!
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      1. USMoj
 

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