struct/cpp/_rvmain.cpp

#include <stdint.h>

char *  ptr1 = "janek";
char *  ptr2 = "kowalskii";

int strlen(char *s)
{
     char *p = s;
     while (*p != '\0')
     p++;
     return p - s;
}

void strcpy(char *s, char *t)
{
     while (*s++ = *t++);
}


#define ALLOCSIZE 10000

static char allocbuf[ALLOCSIZE]; 
static char *allocp = allocbuf; 

char *alloc(int n) 
{

    if (n % 4 != 0) { 
        n += 4 - (n % 4);
    }


     if (allocbuf + ALLOCSIZE - allocp >= n) { 
     allocp += n;
     return allocp - n; 
     } else 
     return 0;
}

int32_t sum (int32_t a, int32_t b) {

    return a+b;
}

int main()  {


        struct point {
            int32_t x;
            int32_t y;
        };

        struct point *  ptrS;
        
        ptrS = (struct point *) alloc(sizeof(point));

        asm("nop");

        ptrS->x=0x10;
        ptrS->y=0x20;

        int32_t wynik = 0;

        wynik = sum ( (*ptrS).x,  ptrS->y);
        asm("nop");

    return 1;
}