What is the easiest way to get an int in a console app?

Question

I want to process user input as an integer, but it seems as though C has no way to get an int from stdin. Is there a function to do this? How would I go about getting an int from the user?

Answer 1

#include <stdio.h>

int n;
scanf ("%d",&n);

See http://www.cplusplus.com/reference/clibrary/cstdio/scanf/

Answer 2

scanf() is the answer, but you should certainly check the return value since many, many things can go wrong parsing numbers from external input...

int num, nitems;

nitems = scanf("%d", &num);
if (nitems == EOF) {
    /* Handle EOF/Failure */
} else if (nitems == 0) {
    /* Handle no match */
} else {
    printf("Got %d\n", num);
}