#include <stdio.h>
Int add (int, int);
Void main()
{
Int a, b, c;
a = 20;
b = 10;
c = a + b;
c = add (a, b);
printf("Your answer is: %d", c);
}
Int add(int x, int y)
{
Int z;
z = x + y;
return (z);
}
I am stuck at understanding how data are passed into this function: how variables from the main function are assigned to the parameters of a called function, then those data’s in the parameters getting assigned into the variables in the function itself
I will appreciate your help. Be it JavaScript or Python. I am just trying to get my understanding on the main logic of parameters, variables, argument and function. Not necessarily C
#include <stdio.h>
int add(int, int);
// this is the 'main' function
// when you compile this code
// this is the part that runs
int main(void) {
// this says we will have 3 integers
int a, b, c;
// this sets the values of the first two
a = 20;
b = 10;
// here we call the function add
// using the values stored in a and b
// c = a + b;
c = add(a, b);
printf("Your answer is: %d", c);
return 0;
}
// this is the function add
// it runs whenever we call it
// with whatever values are passed in
int add(int x, int y) {
// here we say we have one integer
int z;
// and set it to hold the sum of the arguments
z = x + y;
return z;
}
Inside of main we call add with a = 20 and b = 10 so those are the values used in that function call.