parameter passing - C++ Error C2660: Function does not take 3 arguments -

i'm racking brain figure out.. know simple need new set of eyes figure out i'm missing?

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i'm getting error c2660: 'drilloneproblem' : function not take 3 arguments. please!

// drill problem void drilloneproblem() { int c, r1, r2; // passed-in parameters int corans; // correct answer int reply; // user's answer  // ask first part of question , display first random number cout << "\nwhat " << r1;  // display sign based on user's answer switch (c) {     case '1': cout << " + ";     corans = r1 + r2;     break;     case '2': cout << " - ";     corans = r1 - r2;     break;     case '3': cout << " * ";     corans = r1 * r2;     break; }  // finish question , display second random number // ask answer, validate answer , display message cout << r2 << " ? "; cin >> reply;  if (reply == corans) { cout << "yes, corret. job!"; } else cout << "no, correct answer is: " << corans << endl << endl; }  int main() {     int c; // user's menu choice     int r1, r2; // random numbers      //display menu     displaymenu();     // user's choice , validate if out of range    c = getmenuchoice();     // continue program if user doesn't quit    while (c >= 1 && c < sent) {     // generate random numbers     gen2rand(r1, r2);      // display question based on user's menu choice request answer , validate answer.      // display message show if correct or not correct. if not correct display correct answer     **drilloneproblem(c, r1, r2);**      // display menu again , ask menu choice after problem has been processed, repeat until       user quits     displaymenu();     c = getmenuchoice();     } return 0; } 

parameters need declared in brackets in function declaration.

so this:

void drilloneproblem() { int c, r1, r2; // passed-in parameters 

should this:

void drilloneproblem(int c, int r1, int r2) {