#define Test(ptr) while(ptr != NULL){  \
                        printf("ID: %i\n", ptr->id);                  \
                        printf("Size: %i\n", ptr->size);                  \
                        printf("Next: %p\n", (ptr)->next);                  \
                        ptr = ((memblock*)ptr)->next;                \
                  }
#define Test2(ptr) while(ptr->next != (memblock*)MAGIC_INT){\
                ptr = ((memblock*)ptr)->next; \
} \
                printf("ID: %i\n", ptr->id);                  \
                printf("Size: %i\n", ptr->size);                  \
                printf("Next: %p\n", (ptr)->next);\
                memblock *newptr = prt++;\
                printf("Bytes: %c\n", (unsigned char)newptr);\

#define Test3(ptr) while(1){\
if(fgetc(stdin) == 0x0A){\
    if(ptr != NULL){\
                        printf("ID: %i\n", ptr->id);                  \
                        printf("Size: %i\n", ptr->size);                  \
                        printf("Next: %p\n", (ptr)->next);                  \
                        ptr = ((memblock*)ptr)->next;                \
    } else{\
        break;\
    }\
}\
}