Question

I have declared the following enum :

  enum periods {one, five, ten, fifteen, thirty};

and now I want to pass it as a commandline argument in my main function.

int main(int argc, char* argv[]) {

  periods mp;
  if (argc == 2) {
      std::string min_prd(argv[2]);
      mp=atoi(min_prd.c_str());
 }

and the compiler complains:

error: invalid conversion from ‘int’ to ‘periods’

I did atoi() because I figured enum is an int – how do I fix my code?

Answer 1

You have to explicitly cast it:

mp=static_cast<periods>(atoi(min_prd.c_str()));