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Pointer Error

I am having problems with the proper operation of my pointers. In my main file I declare

Analysis2 analysis = Analysis2();
MaxResults maxresults = MaxResults( analysis);

Now in my MaxResults class, I want to point to the analysis so that if any of its variables change, I still get the correct value. Right now, I am declaring the constructor in the MaxResults header as

MaxResults(Analysis2 analysis);
Analysis2 * analysis2;

And in the MaxResults class

MaxResults(Analysis2 analysis)
{
    analysis2 = analysis;
}

When I try to access things from an analysis that has changed, analysis2 does not seem to lag behind. How to fix this, and is there an easy way to remember pointers, links, and dereferences in the future?

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3 answers

If you want to MaxResultskeep a pointer to an object Analysis2, you should do it like this:

class MaxResults {

 public:
     MaxResults(Analysis* an) : analysis(an) {}

 private:
     Analysis* analysis;
};

:

Analysis2 analysis = Analysis2();
MaxResults maxresults = MaxResults( &analysis);

- (&) analysis MaxResults, ( , analysis = an , , : ).

( , ). , , .

+3

, ; . .

-, Analysis2, pass-by-value; . , , , . :

MaxResults(Analysis2& analysis);

-, . &, .

MaxResults(Analysis2& analysis)
{
    analysis2 = &analysis;
}

: .

MaxResults(Analysis2& analysis)
    : analysis2(&analysis)
{
}
+1

MaxResults maxresults = MaxResults(analysis);, analysis. analysis, , . , maxresults , .

- :

MaxResults(Analysis2 *analysis);
Analysis2* analysis2;

:

MaxResults(Analysis2 *analysis)
{
    analysis2 = analysis;
}

:

Analysis2 analysis = Analysis2();
MaxResults maxresults = MaxResults(&analysis);
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