#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include <linux/random.h>
#include <math.h>

int main( int argc, char** argv) {
    int c = 0;
    int bvalue = 64;
    FILE *file;
    char **wsk = NULL;

    while (optind < argc) {
        if ((c = getopt(argc, argv, "b:")) != -1) {
            switch (c) {
                case 'b':
                    bvalue = strtol(optarg, wsk, 0);
                    break;

                default:
                    printf("Usage: %s -b   (optional)<count>    <path>\n", argv[0]);
                    break;
            }
        } else {
            file = open(argv[optind], O_RDONLY);
            if (file == -1) {
                printf("Can't open a file!\n");
                return 1;
            }
            optind++;
        }
    }


    double numbers[65536];
    int i=0;
    ssize_t result=0;
    do {
        char buf[8];
        result += read(file, buf, sizeof(buf));
        numbers[i]=*((double*)buf);
        i++;
    }while(result+8<=32768);

    for(int k = 0; k < 10; k++)
        printf("%lf\n", numbers[k]);


/*
    char buf[sizeof(double)];
    double max = 127;
    double min = -128;
    int i = 0;

    int przedzial[bvalue];
    memset(przedzial, 0, bvalue * sizeof(int));

    int k;
    while( read(file, buf, sizeof(double)) )
    {
        double liczba = strtod*buf;
        liczba = liczba + 128;
        max -= min;
        min = 0;

        k = (int) (liczba / ((max-min)/bvalue));
        przedzial[k]++;

        i++;
    }

    printf("#cnt %d\n", i);
    printf("#bins %d\n", bvalue);

    for( int k = 0; k < bvalue; k++)
        printf("%d: %d\n", k, przedzial[k]);

*/
    return 0;
}