/**
 * function-1.c
 *
 * David J. Malan
 * malan@harvard.edu
 *
 * Demands that user provide a positive integer.
 *
 * Demonstrates use of a function (not from a library) with a return value.
 */

#include <cs50.h>
#include <stdio.h>

// prototype
int GetPositiveInt();

int main(void)
{
    int n = GetPositiveInt();
    printf("Thanks for the positive int!\n", n);
}

/**
 * Gets a positive integer from a user.
 */
int GetPositiveInt(void)
{
    int n;
    do
    {
        printf("Please give me a positive in: ");
        n = GetInt();
    }
    while (n < 1);
    return n;
}