Question

This is part of a study guide at the moment and while I realize its not very difficult, I can’t understand what its asking for.

Write a Function:
struct *grump(int i, int j)
which returns a pointer to a “struct grump” holding the values i, j in its fields a,b

So Im given

struct grump
{
    int a;
    int b;
};

I’m just confused as to what its asking for

Answer 1

It’s asking you to allocate a struct grump that will hold the values i and j, something like:

struct grump* func(int i, int j)
{
    struct grump *g = malloc(sizeof(*g));
    if (g != NULL) {
       g->a = i;
       g->b = j;
    }
    return g;
}

Note: we check if g != NULL to make sure malloc() succeeded before using grump if not the function will return NULL. Of course at some point you will need to free() that memory, I’m sure your study guide will mention it soon.