Loos at this useless thing

#include <stdio.h>
#include <inttypes.h>

enum
{
        bias = 1023, mantissa = 52, poryadok = 11,bitznaka0=0, bitznaka1 = 1, bitsmeschenia = 1
};

void f (double a)
{
        uint64_t *p1,b=0,q,l,k,j,g=1;
        double h;
        int i=1;
        void *p2;
        p2 = (& a);
        p1 = (uint64_t*) p2;
        q = ~ (( ~ b) >> 1);
        for ( ; q != 0 ; q = q >> 1 , i++)
        {
                if ( (q & *p1) == 0 )
                        putchar ('0');
                else
                        putchar ('1');

                if ((i == bitznaka1) || (i == (bitznaka1 + poryadok)))
                        putchar (' ');
        }
        putchar ('\n');

        l = (*p1 >> (poryadok + mantissa));
        printf ("bit znaka = %ld\n", l);

        k = (*p1 << bitznaka1);
        k = (k >> (mantissa + bitznaka1));
        printf ("poryadok = %ld\n", k);

        j = (*p1 << (poryadok + bitznaka1));
        j = (j >> (bitznaka1 + poryadok));
        printf ("mantissa = %ld\n", j);

        h = 1.0 + (((double) j) / (1L << mantissa));
        printf ("Predstavlenie chisla -1^(%ld) * 2^(%ld - %i) * %lf\n", l, k, bias, h);

        /* Начало бесполезной проверки*/
        if (k == ((1L << poryadok) - 1))
        {
                if (j == 0)
                {
                        if (l == bitznaka1)
                                printf("-infinity\n");
                        if (l == bitznaka0)
                                printf("+infinity\n");
                }
                if (j == (g << (mantissa - 1)))
                        printf("NAN\n");
        }
        /*Конец бесполезной проверки*/
}

int main()
{
        double a,b;
        printf ("Vashe chislo budet =a/b\nVvedite 2 chisla 4erez enter\n");
        scanf ("%lf%lf", &a,&b);
        a = a / b;
        printf ("vashe chislo = %lf\n",a);
        f(a);
        return 0;
}