How to set function default parameter as static created class object in C++?

Question

I want to set function with static class object parameter set as default. How I can to set default value for function/method parameter as static created class object in C++?

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• c++ function default argument object
• c++ function default argument value for class object
• c++ function default value for argument of complex type

Answer 1

To set default value for function parameter as static created class object, use next syntax:

int someFunc(int a, FooCls fooObj = FooCls(), double bar = 5.73);

or with transfer several parameters to overloaded class constructor:

int someFunc(int a, FooCls fooObj = FooCls(5, true, 1.8f), double bar = 5.73);