Thread: Trouble with passing by reference

Hello everyone, I'm very new to C and programming in general. Apologies if this is a very obvious mistake but I'm stuck and not sure what to do. I'm trying to do a set function on one of my variables and when I pass my int pointer and change the value in the function. The int in my main program always turns out to be 1 for whatever reason.

Code:

#include <stdio.h>
#include <stdlib.h>
#include"employee.h"


void setNumberOfEmployees(int* numEmployees);


int main()
{
    int employees; // amount of employees that signed up for LWOP
    int* pEmployees = &employees;
    setNumberOfEmployees(pEmployees);


    printf("%d", employees);


    struct employee lwopListed[employees];


    return 0;
}


void setNumberOfEmployees(int* numEmployees) {
    int employees = scanf("%d", &employees);
    if (employees > 0)
        *numEmployees = employees;
    return;
}
/* output
23 // this is the number I entered in the setEmployeeNumber function
1 // and this is the value of employees after the function
Process returned 0 (0x0)   execution time : 3.260 s
Press any key to continue.
*/

Code:

#include <stdio.h>

void setNumberOfEmployees(int *numEmployees);

int main() {
    int employees;
    setNumberOfEmployees(&employees);
    printf("%d\n", employees);
    return 0;
}

void setNumberOfEmployees(int *numEmployees) {
    *numEmployees = 0;
    scanf("%d", numEmployees)
}