help plz constructor design

[wysota]

That said, there are two common ways of initializing class member variables, using 1) The constructor initializer list or; 2) by assigning values in your constructor.

There is also a third one which the OP has actually used -- by initializing at the time the variable is declared:

// Example.h
class Example
{
public:
    Example();
    ~Example();
private:
    int a = 1; // <==
    int b = 2; // <==
}

// Example.h
class Example
{
public:
    Example();
    ~Example();
private:
    int a = 1; // <==
    int b = 2; // <==
}

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