floating.c
author Markus Bröker <mbroeker@largo.dyndns.tv>
Wed, 26 May 2010 14:56:44 +0200
changeset 126 52722ac7693f
parent 77 49e0babccb23
permissions -rw-r--r--
mysql_db: get not more than num_fields fields from a row I haven't tested the old approach, because i have never installed or used mysql. But it's nice to see that it actually works with this small patch. committer: Markus Bröker <mbroeker@largo.homelinux.org>

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

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

double *getValues (unsigned 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);

    unsigned 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;
}