C programming - segmentation fault (core dump)

Question

I am continuously getting a seg fault (core dump) each time that I run it, no matter what I change or the fact that is compiling fine! Not sure where I am making the mistake? Any suggestions?

int main (int argc, char** argv)
{
    FILE *output;
    if ((output = fopen("output", "w")) == NULL)
    {
            printf ("cannot open the file input\n");
            exit (EXIT_FAILURE);
    }

    int data = 1;
    while (scanf("%d", data) > 0)
    {
            print(output, data);
    }

    fclose(output);
    return (0);
}
void print(FILE* output, int data)
{
    fprintf(output, "%d\n", data);
    return;
}

Answer 1

1 change while (scanf("%d", data) > 0) to while (scanf("%d", &data) > 0) .

2 move the function of print to the begin.

This could work for you.

#include <stdio.h>
#include <string.h>
#define MAX 100

void print(FILE* output, int data)
{
    fprintf(output, "%d\n", data);
    return;
}

int main (int argc, char** argv)
{
    FILE *output;
    if ((output = fopen("output", "w")) == NULL)
    {
            printf ("cannot open the file input\n");
            return -1;
    }

    int data = 1;
    while (scanf("%d", &data) > 0)
    {
            print(output, data);
    }

    fclose(output);
    return (0);
}

Input

1 2 3 "Enter" "Ctrl+D"