/* ptrtest2.c

   Use AS-IS to test CS 60 assignment 2, part 2b, Fall 2009

   updated by cmc, 10/6/09
*/

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

#include "ptrfuncs.h"

int main(int argc, char *argv[]) {
    double x[] = {
        406.94, 198.63, 961.99, 238.36, 910.21, 188.81, 467.37, 639.6,
        125.1, 581.16, 144.5, 354.07, 812.45, 716.26, 150.35, 753.4,
        387.7, 491.69, 788.64, 624.17, 263.02, 545.16, 908.81, 829.42,
        620.95, 684.85, 479.14, 210.61, 685.58, 23.42, 466.19, 641.73,
        985.22, 803.12, 139.89, 106.97, 463.64, 575.13, 461.76, 572.48
    };
    int nx = (sizeof x) / sizeof(double);
    double *p;

    unsigned seed;
    srand(time(NULL)); /* system time used for random seed by default */
    if (argc > 1 && sscanf(argv[1], "%u", &seed) > 0)
        srand(seed);   /* change the seed if one is input by the user */

    puts("first 25 values of x, 7 per line:");
    printTable(x, 25, 7);
    puts("last 20 values of x, 4 per line:");
    printTable(x + nx - 20, 20, 4);

    puts("25 random values in range -20 to +20:");
    p = randomValues(25, -20, 20);
    printTable(p, 25, 5);
    free(p); /* good practice to avoid memory leak */

    puts("10 random values in range -200 to +200:");
    p = randomValues(10, -200, 200);
    printTable(p, 10, 5);
    free(p);

    puts("40 random values in range 0 to 1000:");
    p = randomValues(40, 0, 1000);
    printTable(p, 40, 5);
    free(p);

    return 0;
}