/*
 * Demo of reading a file into an array of records
 */

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

typedef struct
{
    char name[20];    /* frog name */
    double height;    /* high jump in inches */
    int bestTime;     /* race time in seconds */
    int rank;         /* ranking */
}
frog_t;

void readFile(frog_t list[], int *numFrogs);
void displayResults(const frog_t list[], int numFrogs);

int main(void)
{
    int numFrogs;
    frog_t list[50];   /* the list of frogs */

    readFile(list, &numFrogs);
    displayResults(list, numFrogs);

    return 0;
}

/* Read the data into the array */
void readFile(frog_t list[], /* output - array of frogs */
              int *numFrogs) /* output - number of frogs */
{
    FILE *inp = NULL;
    int input_status;
    int idx = 0;

    inp = fopen ("frog.data", "r");
    input_status = fscanf(inp, "%s %lf %d %d", list[idx].name,
               &list[idx].height, &list[idx].bestTime, &list[idx].rank);

    while (input_status != EOF)
    {
        idx++;
        input_status = fscanf(inp, "%s %lf %d %d", list[idx].name,
               &list[idx].height, &list[idx].bestTime, &list[idx].rank);
    }
    *numFrogs = idx;
}

/* Display the frog data */
void displayResults(const frog_t list[],      /* input - frog list */
                 int numFrogs) /* input - number of frogs in the list */
{
    int idx;

    printf ("\t\tFrog Report:\n");
    printf ("Name                 Height     Time     Rank \n");
    printf ("----------------------------------------------\n");

    for (idx = 0; idx < numFrogs; idx++)
    {
        printf ("%-18s%7.2f", list[idx].name, list[idx].height);
        printf ("       %4d        %2d\n", list[idx].bestTime, 
                                           list[idx].rank);
    }
}