Passing and using struct with typedef

Question

how can i use the next struct with typedef by passing it to another function like that?

I have tried this code but i doesn't seem to be working.

typedef struct stru{
    int num;
} stru;

int main(void)
{
    stru current;
    struc(&current);
    printf("%d", current.num);
}


int struc(stru* current)
{
    *current.num = 1;
    return 0;
}

It didn't worked because its not the right way to set it to 1 i guess can someone help me to do it , i have tried few other ways but neither of them is working

*current.num = 1;

Answer 1

Unary * has less precedence than . .

Therefore, your code is parsed as *(current.num) = 1 , which is very much not what you want.

Instead, you need to force the dereference to happen first: (*current).num .

This is so common that C has a shorthand for it: current->num .