Fragmentation

void printDataStats(const char* name)
{
    FILE* file = openFile(name, "rb");
    int freeBlocks = freeBlocksCount(file);
    int busyBlocks = BLOCKS_NUMBER - freeBlocks;
    fclose(file);

    int freeSpace = freeBlocks*BLOCK_SIZE;
    int allSpace = BLOCK_SIZE*BLOCKS_NUMBER;
    int busySpace = allSpace-freeSpace;

    cout << "Free Blocks: " << freeBlocks << "/" << BLOCKS_NUMBER << "\n";
    cout << "Occupied Blocks: " << busyBlocks << "/" << BLOCKS_NUMBER << "\n";
    cout << "Results in: \n";
    cout << ((double)freeSpace/(double)allSpace)*100.0 << "% of free space\n";
    cout << ((double)busySpace/(double)allSpace)*100.0 << "% of occupied space\n";
    cout << freeSpace << "/" << allSpace << " bytes are free\n";
    cout << busySpace << "/" << allSpace << " bytes are occupied\n";


    /* Can comment if not working first time */
        int i;
        uint16_t temp;
        unsigned long int tempPos;
        file = openFile(name, "rb");

        int unusedBytes = 0;
        while(true)
        {
            tempPos = ftell(file);
            fread((void*) &temp, sizeof(temp), 1, file);
            if(feof(file))
                break;
            //printf("%#08lx\t", tempPos);
            int bytescount = 0;
            if((temp & 32768) == 0)
            {

                bool go = true;
                char c = 'a';
                while(c != '\0' && go)
                {
                    fread((void*) &c, sizeof(c), 1, file);
                    bytescount++;
                    if(bytescount == BLOCK_SIZE)
                    {
                        //cout << "Break by BLOCK_SIZE\n";
                        go = false;
                    }
                }
                unusedBytes += BLOCK_SIZE-bytescount;
            }
            fseek(file, -bytescount+BLOCK_SIZE, SEEK_CUR);
        }
        fclose(file);

        cout << unusedBytes << "/" << allSpace << " lost by fragmentation\n";
        cout << (double)unusedBytes/(double)allSpace*100.0 << "% of disk space lost by fragmentation\n";

}