interactive menu with switch statement - c

Question

Hi I'm trying to make an interactive menu with switch statement in C.
Though I'm unsure of how to trigger a function that has certain arguments.
I'm a total beginner and I'm stumped how to do this.
The function in the switch statement needs the arguments though I would like the function to ask for the numbers. I'm doing this as an assignment and cannot provide the actual code so I made this mock up. Thank you for your help.
Here is an example of code I might use.
#include <stdio.h>
void printMenu()
{
int choice;
do
{
printf("Main Menu:\n");
printf("1) do this\n");
scanf("%d", &choice);
switch (choice)
{
case 1:
function(); /* though this needs the arguments */
break;
}
} while (choice != 7);
int main(void)
{
printMenu();
return 0;
}
void function(int number1, float number2)
{
/*calculation*/
printf("enter your numbers");
/* Not sure how to read the numbers in here */
printf("%d + %d = %d", number1, number2, number1 + number2);
return;
}

Answer 1

If you want the switch to be as minimal as possible then just call another function which takes in input and then calls the function...
case 1:
read_input_and_function()
break;
...
void read_input_and_function(void)
{
printf("Enter your numbers: ");
/* scanf number1, number2 */
function(number1, number2);
}

Answer 2

The function in the switch statement needs the arguments though I
would like the function to ask for the numbers.
How about asking the arguments first , and then calling the function. This way the two arguments can be declared once and be used in other functions of the same switch , but be defined according to the chosen case.
void function1(int, float);
void printMenu()
{
int choice = 0 , num1 = 0;
float num2 = 0;
do
{
printf("Main Menu:\n");
printf("1) do this\n");
scanf("%d", &choice);
switch (choice)
{
case 1:
printf("\nEnter number 1\n");
scanf("%d",&num1);
printf("\nEnter number 2\n");
scanf("%f",&num2);
function1(num1,num2);
break;
}
} while (choice != 7);
}

Answer 3

#include <stdio.h>
#include <stdlib.h>
#define Pi 3.14159216
/*
*small program of how to create a menu
*/
main ()
{
float degree,radians;
int input;
/*degrees to radians */
float degreesToRadians (float deg)
{
return ((Pi * deg) / 180.0);
}
/*radians to degrees*/
float radiansToDegrees (float rad)
{
return rad * (180 / Pi);
}
void menu ()
{
printf ("\n");
printf ("1. degrees\n");
printf ("2. radians\n");
printf ("3. quit\n");
do
switch (input) {
case 1:
printf ("\n");
printf ("\n");
printf (" Enter value of degrees: ");
scanf ("%f", &degree);
printf ("RADIANS = %f \n\n", degreesToRadians (degree));
menu ();
break;
case 2:
printf ("\n");
printf ("\n");
printf (" Enter value of radians: ");
scanf ("%f", &radians);
printf ("DEGREES = %f \n\n", radiansToDegrees (radians));
menu ();
break;
case 3:
printf (" quiting app \n");
exit (0);
break;
default:
printf ("wrong option\n");
break;
}
while (input != 3);
getchar ();
}
}
menu ();
}