showdouble

#include <stdio.h>
#include <string.h>
#include "stdlib.h"


union u {
    char data[sizeof(long double)];
    long double ldb;
    double db;
    float fl;
};

int main() {
    union u X;
    memset(X.data, 0, sizeof(long double));
    char t[10] = {0};
    char elem = 0;
    int space_chek = 1, start = 0;
    scanf("%s", &t);
    if (strstr(t, "float") != NULL) {
        scanf("%f", &X.fl);
        start = sizeof(float) * 8;
    }
    else if (strstr(t, "double") == t) {
        scanf("%lf", &X.db);
        start = sizeof(double) * 8;
    }
    else {
        scanf("%s", &t);
        scanf("%Lf", &X.ldb);
        start = sizeof(long double) * 8;
    }

    for (int i = --start; i >= 0; i--) {
        int ind1 = i/8, ind2 = i%8;
        elem = X.data[ind1] >> ind2 & 1;
        printf("%d", elem);
        if (space_chek % 4 == 0)
            printf(" ");
        space_chek++;
    }
    return 0;
}