[НРС] Вежбе 3 - Задатак 2

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

void copyLEToLE(int x, void* copy){
    for(int i=0; i < sizeof(x); i++){
        *((char*)copy + i) = *((char*)&x + i);
    }
}

void copyLEToBE(int x, void* copy){
    for(int i = 0; i < sizeof(x); i++){
        *((char*)copy + i) = *((char*)&x + sizeof(x)-1-i);
    }
}

int Count(char* buffer){
    char            lb              = *buffer;
    unsigned short  N1              = *(buffer + sizeof(unsigned short) - 1),
                    N2              = *(buffer + 2*sizeof(unsigned short) - 1);
    int             counter         = 0,
                    correction_for  = (N1 > N2) ? (N1 - N2)*sizeof(double) : 0,
                    i,
                    j;
    for(i = sizeof(char) + 2*sizeof(unsigned short),
        j = sizeof(char) + 2*sizeof(unsigned short) + N1*sizeof(double);
        i < sizeof(char) + 2*sizeof(unsigned short) + N1*sizeof(double) - correction_for;
        i += sizeof(double), j += sizeof(double)){
            //printf("%lf %lf", *((double*)(buffer + i)), *((double*)(buffer + j)));
            if((*((double*)(buffer + i))) > (*((double*)(buffer + j)))){
                ++counter;
            }
    }
    printf("%c", lb);
    switch (lb)
    {
        case 'L':
            copyLEToLE(counter, (double*)&counter);
            break;
        case 'B':
            copyLEToBE(counter, (double*)&counter);
            break;
        default:
            printf("Greska1.");
            return -1;
    }
    return counter;
}

int main(){
    unsigned short N1, N2;
    printf("Unos broja niza 1: ");
    scanf("%hu", &N1);
    printf("Unos broja niza 2: ");
    scanf("%hu", &N2);
    char tmp_lb;
    int uslov = 1,
        i     = 0;
    do{
        printf("Da li su brojevi L ili B format? (b/l): ");
        scanf(" %c", &tmp_lb); //'space' u scanf je da se ne duplira ispis (nije mi pomogao fflush(stdin))
        if(tmp_lb == 'l' || tmp_lb == 'L' || tmp_lb == 'b' || tmp_lb == 'B'){
            uslov = 0;
        }
    }while(uslov != 0);
    tmp_lb = toupper(tmp_lb);
    char* buffer = (char*)malloc(sizeof(char) + 2*sizeof(unsigned short) + N1*sizeof(double) + N2*sizeof(double));
    *buffer = tmp_lb; //buffer[0]
    *(buffer + sizeof(unsigned short) - 1) = N1; //buffer[1-2]
    *(buffer + 2*sizeof(unsigned short) - 1) = N2; //buffer[3-4]
    printf("Unos Niza 1: \n");
    for(i = 2*sizeof(unsigned short) + sizeof(char); i < 2*sizeof(unsigned short) + sizeof(char) + N1*sizeof(double); i+=sizeof(double)){
        double tmp;
        printf("Element %ld >> ", (i-sizeof(char)-2*sizeof(unsigned short))/sizeof(double));
        scanf("%lf", &tmp);
        switch(*buffer){
            case 'L':
                copyLEToLE((int)tmp, buffer + i);
                break;
            case 'B':
                copyLEToBE((int)tmp, buffer + i);
                break;
            default:
                printf("Greska.");
                return EXIT_FAILURE; //izadji iz celog programa
        }
    }
    printf("Unos Niza 2: \n");
    for(i = 2*sizeof(unsigned short) + sizeof(char) + N1*sizeof(double); i < 2*sizeof(unsigned short) + sizeof(char) + N1*sizeof(double) + N2*sizeof(double); i+=sizeof(double)){
        double tmp;
        printf("Element %ld >> ", (i-sizeof(char)-2*sizeof(unsigned short))/sizeof(double));
        scanf("%lf", &tmp);
        switch(*buffer){
            case 'L':
                copyLEToLE((int)tmp, buffer + i);
                break;
            case 'B':
                copyLEToBE((int)tmp, buffer + i);
                break;
            default:
                printf("Greska.");
                return EXIT_FAILURE; //izadji iz celog programa
        }
    }
    int counter = Count(buffer);
    if(counter != -1){
        printf("Broj iznosi: %d\n", counter);
    }
    free(buffer);
    return EXIT_SUCCESS;
}