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POcan not change an object's property within another object in C++
 

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  1. POcan not change an object's property within another object in C++
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    <p>I have the following code written in C++:</p> <pre><code>#include&lt;iostream&gt; #include&lt;vector&gt; using namespace std; class cViews { string viewName; double minD; vector&lt;double&gt; dss; public: string minInput1, minInput2; cViews(string); cViews(); void setName(string s) { viewName = s; } string getName() { return viewName; } void setMinI(string m) { minInput1 = m; } string getMinI() { return minInput1; } void setMinD(double d) { minD = d; } double getMinD() { return minD; } void addD(vector&lt;double&gt; k){ dss = k; } vector&lt;double&gt; getD(){ return dss; } }; cViews::cViews(string str) { viewName = str; vector&lt;double&gt; dss = vector&lt;double&gt;(); } cViews::cViews() { vector&lt;double&gt; dss = vector&lt;double&gt;(); } class Obj{ string name; cViews dist; public: Obj(string); void setName(string s) { name = s; } string getName() { return name; } void addDist(cViews k){ dist = k; } cViews getDist(){ return dist; } }; Obj::Obj(string str) { name = str; cViews dist(); } void changeViewN(cViews *v, string s){ v-&gt;setMinI(s); } int main(){ Obj o1("Object1"); cViews v3; cViews v1("View 1"); v1.setMinI("View 2"); v1.setMinD(1); o1.addDist(v1); cout &lt;&lt; o1.getName() &lt;&lt; " " &lt;&lt; o1.getDist().getMinI() &lt;&lt; endl; v3 = o1.getDist(); changeViewN(&amp;v3, "Changed"); cout &lt;&lt; o1.getName() &lt;&lt; " " &lt;&lt; o1.getDist().getMinI() &lt;&lt; endl; return 0; } </code></pre> <p>Output is:</p> <pre><code>Object1 View 2 Object1 View 2 </code></pre> <p>The problem here is I am trying to change the value of an object that was created within another object.</p> <p>Output should be:</p> <pre><code>Object1 View 2 Object1 Changed </code></pre> <p>Any help is greatly appreciated. Thank you.</p>
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    1. USuser461127
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    1. COI'm curious, which purpose does the line `vector<double> dss = vector<double>();` serve in the constructors?
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      1. USVlad
    2. COwhen you've called `o1.getDist()` you haven't returned reference but the whole class. so `v3` holds the changed value but `o1` doesn't
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      1. POcan not change an object's property within another object in C++
      1. USDjole
    3. COto be honest it sounds like a piece of nightmares, what exactly are you trying to achieve? It is just a matter of supplying methods to access internal variables.
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      1. POcan not change an object's property within another object in C++
      1. USAnders K.
 

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