floating.c
author Markus Bröker <mbroeker@largo.dyndns.tv>
Thu, 16 Apr 2009 12:49:11 +0200
changeset 35 024c2932a31f
parent 29 7abf6146898e
child 63 5a82f89d607e
permissions -rw-r--r--
Here is the spoon... committer: Markus Bröker <mbroeker@largo.homelinux.org>

/**
 * test/demos/floating.c
 * Copyright (C) 2008 Markus Broeker
 */

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

double *getValues (int elements)
{
    double *values;
    int i;

    if ((values = calloc (elements + 1, sizeof (double))) == NULL)
        return NULL;
    for (i = elements; i >= 0; i--)
        values[i] = cos (i);
    return values;
}

#define MAX 40

int main (int argc, char **argv)
{
    double *values = getValues (MAX);

    int i;

    for (i = 0; i < MAX; i++) {
        if (fabs (cos (i) - values[i]) < 0.001)
            printf ("COS(%d) = %3.2g = %3.2g\n", i, values[i], cos (i));
    }

    if (values != NULL)
        free (values);

    return EXIT_SUCCESS;
}