C++ default arguments out of order?

  • A+

suppose I have:

void f(bool option1 = false, bool option2 =false, bool option3 = false)  {      ...  } 

And I want to call:


Is this possible in C++?

It is not possible to invoke a function in the manner you suggested in C++. You can emulate named parameters via metaprogramming or simply pass a struct to your function. E.g.

struct options {     bool option0{false};     bool option1{false};     bool option2{false}; };   void f(options opts = {}); 

C++11 usage:

options opts; opts.option2 = true; f(opts); 

C++2a usage:



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