Scanf causes C program to crash

Question

This simple issue is causing my entire program to crash during the first input. If I remove the input, the program works fine but once I add scanf into the code and enter the input the program crashes.

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define MAXEMPS 3


// stub program code
int main (void){
    char answer;

    do
    {

        printf("\n Do you have another(Y/N): ");
        scanf("%c", answer);
    }while(answer == 'Y' || answer == 'y');

    getchar();
    printf("  Press any key ... ");
    return 0;
} // main

Answer 1

You must pass the address of the variable to scanf:

 scanf("%c", &answer);