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POHow Can I Access The Private Member Of A Class From Within a Header File?
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  1. POHow Can I Access The Private Member Of A Class From Within a Header File?
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    copied!<p>I'm sorry that the question is worded so awkwardly, as I'm not sure how to ask it. In any case, I have an implementation file and header for a class called "aItem", which contains a vector of aItem objects.</p> <p>In a second file, entitled "bag", I'd like to be able to make a list of all the elements of the aforementioned vector. I originally had "bag" separated into a header and implementation file, but the compiler threw a fit about "undeclared reference to " until I combined the two files. In any case, that part is working. </p> <p>I would like bag.h (more specifically, the addItem function) to be able to access the m_itemName variable of the created item.</p> <p>aItem.cpp:</p> <pre><code>//aItem .cpp implementation file #include "aItem.h" #include &lt;iostream&gt; #include &lt;string&gt; #include &lt;vector&gt; using namespace std; //setting this up default aItem::aItem() { m_itemName = "Default Name"; m_itemType = "Default Type"; m_damage = 9001; } void aItem::setName(string name) { m_itemName = name; } void aItem::setType(string type) { m_itemType = type; } void aItem::setDamage(int damage) { m_damage = damage; } string aItem::getName() { return m_itemName; } string aItem::getType() { return m_itemType; } int aItem::getDamage() { return m_damage; } </code></pre> <p>aItem.h:</p> <pre><code>#ifndef AITEM_H_INCLUDED #define AITEM_H_INCLUDED #include &lt;iostream&gt; #include &lt;string&gt; #include &lt;vector&gt; using namespace std; class aItem { public: //constructor aItem(); //Methods void ItemCreate(string itemName, string itemType, int damage); void setName(string name); void setType(string type); void setDamage(int damage); string getName(); string getType(); int getDamage(); private: string m_itemName; string m_itemType; int m_damage; }; #endif // AITEM_H_INCLUDED </code></pre> <p>bag.h:</p> <pre><code>#ifndef BAG_H_INCLUDED #define BAG_H_INCLUDED #include "aItem.h" #include &lt;iostream&gt; #include &lt;string&gt; #include &lt;vector&gt; using namespace std; class aItem; class bag : public aItem { public: //constructor bag(); //methods //void delItem(aItem aitem); void addItem(aItem var) { m_items.push_back(var); } void bagList() { for( vector&lt;aItem&gt;::size_type index = 0; index &lt; m_items.size(); index++ ) { //Makes a numerical list. cout &lt;&lt; "Item " &lt;&lt; index + 1 &lt;&lt; ": " &lt;&lt; m_items[index].m_itemName &lt;&lt; endl; index+= 1; } } private: vector&lt;aItem&gt; m_items; }; #endif // BAG_H_INCLUDED </code></pre> <p>...and finally, main.cpp:</p> <pre><code>// WHYGODWHY.cpp : Defines the entry point for the console application. // #include "aItem.h" #include "bag.h" #include &lt;iostream&gt; using namespace std; int main() { aItem woodSword; woodSword.setName("Wooden Sword"); woodSword.setDamage(3); woodSword.setType("WPN"); bag inventory; inventory.addItem(woodSword); inventory.bagList(); cout &lt;&lt; "Name: " &lt;&lt; woodSword.getName() &lt;&lt; endl; cout &lt;&lt; "Type: " &lt;&lt; woodSword.getType() &lt;&lt; endl; cout &lt;&lt; "Damage: " &lt;&lt; woodSword.getDamage() &lt;&lt; endl; //cout &lt;&lt; "Inv: " &lt;&lt; int pause = 0; cout &lt;&lt; "Pause!"; cin &gt;&gt; pause; return 0; } </code></pre> <p>EDIT: This is the error message: C:\Users\dmarr\Documents\CSharper\Dallas\CPlusPlus\WHYGODWHYCB\aItem.h||In member function 'void bag::bagList()':| C:\Users\dmarr\Documents\CSharper\Dallas\CPlusPlus\WHYGODWHYCB\aItem.h|28|error: 'std::string aItem::m_itemName' is private| C:\Users\dmarr\Documents\CSharper\Dallas\CPlusPlus\WHYGODWHYCB\bag.h|32|error: within this context| ||=== Build finished: 2 errors, 0 warnings ===|</p>
 

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