Thread: Type casting

Im a super newbie with c so this probably looks like crap but it works. I have a pointer array in memory that starts at Points_Array and steps through getting each record in memory. The first member in the structure is a jump address to the correct function that processes infomation in the structure.

It compiles with warning: assignment makes pointer from integer without a cast [-Wint-conversion]

I cant figure out how to type cast for the function below. Could someone show me how to do that.

Thanks.

Code:

void (*pf)(uint8_t, uint8_t, uint32_t*);

void processPoints(void)
{
    uint8_t a = Pnt_Count;
    uint32_t *p;
    uint32_t *pa = Points_Array;
    while (a)
    {
        p =  (uint32_t*) *pa;

        pf = *p; /* warning is for this line */

        pf(PNT_PROCESS, a, p);
        --a;
        ++pa;
    }
}

You use wrong contain type.

Code:

/* Normally. */
Delegate = &Method_name;

Code:

int m_plus(int a, int b){ return a + b; }
int m_minus(int a, int b){ return a - b; }
int (*d_m)(int, int);


int main()
{
    int _a = 10, _b = 5, _c = 0, _d = 0;


    void * _m[2] = {&m_plus, &m_minus};


    d_m = _m[0];
    _c = d_m(_a, _b);


    d_m = _m[1];
    _d = d_m(_a, _b);
    
    return 0;
 }