Re: using and de-referencing a function pointer in a member function

Hi everyone,

I'm trying to execute the same function call with 1 parameter different
in a switch statement of a member function. However, if a certain
condition is true (and I can check that before the switch statement), I
want to execute a difference function call with the same parameters.

So instead of using an if-clause to distinguish the 2 cases in each
case-statement, or doubling the switch, I considered this:

void configuration::add (string param, configParameter cp);
void configuration::set (string param, configParameter cp);

my member function:

void configuration::add (string param, string strType, string strValue);
{
  void (configuration::*add_or_set)(string, configParameter);

  if (/* my condition */) add_or_set = &configuration::add;
  else add_or_set = &configuration::set;

/* then the switch statement */
  switch (expression) {
    case a: (this->*add_or_set) (someString, someConfigParameter);
    break;
    case b: (this->*add_or_set) (someOtherString, someConfigParameter);
    break;
    default:
    break;
  }
}

After I played around with the de-referencing for a bit, getting various
error messages, I finally got it right (seemingly) with this expression
(this->*add_or_set) (parameters ...)

So my question: Is this the way to go? Or should I use a different
syntax? Thank you in advance!