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POAdd every value in stack
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  1. POAdd every value in stack
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    copied!<p>I am trying to figure out a method that will add every value in a stack.</p> <p>The goal is to use that value to determine if all the values in the stack are even. I have written to code to do this</p> <pre><code>template &lt;class Object&gt; bool Stack&lt;Object&gt;::objectIsEven( Object value ) const { bool answer = false; if (value % 2 == 0) answer = true; return( answer ); } </code></pre> <p>However, I am stumped on how to add all of the stack's values in a separate method</p> <p>Stack.cpp</p> <pre><code>#ifndef STACK_CPP #define STACK_CPP #include "Stack.h" namespace cs20 { template &lt;class Object&gt; Stack&lt;Object&gt;::Stack() { topNode = NULL; } template &lt;class Object&gt; Stack&lt;Object&gt;::Stack( const Stack&lt;Object&gt;&amp; rhs ) { topNode = NULL; *this = rhs; } template &lt;class Object&gt; Stack&lt;Object&gt;::~Stack() { makeEmpty(); delete topNode; } template &lt;class Object&gt; bool Stack&lt;Object&gt;::isEmpty() const { return( (topNode == NULL) ); } template &lt;class Object&gt; bool Stack&lt;Object&gt;::even() const { } // template Object must support the % operator which ints do template &lt;class Object&gt; bool Stack&lt;Object&gt;::objectIsEven( Object value ) const { bool answer = false; if (value % 2 == 0) answer = true; return( answer ); } template &lt;class Object&gt; void Stack&lt;Object&gt;::makeEmpty() { while (!isEmpty()) { pop(); } } template &lt;class Object&gt; void Stack&lt;Object&gt;::push( const Object&amp; data ) { StackNode&lt;Object&gt;* newNode = new StackNode&lt;Object&gt;( data, topNode ); topNode = newNode; } template &lt;class Object&gt; void Stack&lt;Object&gt;::pop() { if (isEmpty()) { throw EmptyStack(); } StackNode&lt;Object&gt; *oldTop = topNode; topNode = topNode-&gt;getNext(); delete oldTop; } template &lt;class Object&gt; const Object&amp; Stack&lt;Object&gt;::top( ) const { if (isEmpty()) { throw EmptyStack(); } StackNode&lt;Object&gt; node = *topNode; return( node.getElement() ); } template &lt;class Object&gt; Object Stack&lt;Object&gt;::topAndPop( ) { Object o = top(); pop(); return( o ); } // Deep copy of linked Stack template &lt;class Object&gt; const Stack&lt;Object&gt;&amp; Stack&lt;Object&gt;::operator =( const Stack&lt;Object&gt;&amp; rhs ) { if (this != &amp;rhs) { makeEmpty(); if (!(rhs.isEmpty())) { StackNode&lt;Object&gt; * rhsTopNode = rhs.topNode; StackNode&lt;Object&gt; * myTopNode = new StackNode&lt;Object&gt;( rhsTopNode-&gt;getElement() ); topNode = myTopNode; rhsTopNode = rhsTopNode-&gt;getNext(); while (rhsTopNode != NULL) { myTopNode-&gt;setNext( new StackNode&lt;Object&gt;( rhsTopNode-&gt;getElement() ) ); myTopNode = myTopNode-&gt;getNext(); rhsTopNode = rhsTopNode-&gt;getNext(); } } } return( *this ); } template &lt;class Object&gt; std::ostream&amp; Stack&lt;Object&gt;::printStack( std::ostream&amp; outs ) const { if (isEmpty()) { outs &lt;&lt; "Empty Stack"; } else { outs &lt;&lt; "TOP: "; StackNode&lt;Object&gt; * node = topNode; while (node != NULL) { outs &lt;&lt; node-&gt;getElement(); outs &lt;&lt; "\n "; /// for visual alignment node = node-&gt;getNext(); } } return( outs ); } } #endif </code></pre>
 

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