passing structs by reference

I have a class that has some struct types defined publicy:

Code:

---

//.h file
struct foo
{
int a;
string b;
char c;
};
void test(int a, foo f1);

---

Now in the .cpp file, I want to to have a function take a parameter as a type of that struct;

Code:

---

foo f1;
void test(int a, f1);

---

what is the correct way to pass and access this by reference:
test(1, &f1)
...
test(....)
{
*ft.a = 1;
}

no!

I am confused as to how pointers, the * and & operators and everything works with objects.
Can someone point me to a good tutorial or give me a simple snippet please?

thx.

Code:

---

foo f1;
void test(int a, f1);

---

This is not a correct function declaration, here you declare a variable of type foo, and a function with no type for the last parameter. Function declarations always look like this:

Code:

---

void test(int a, foo f1);

---

If you want to use a reference instead you should replace foo by foo& so you get:

Code:

---

void test(int a, foo& f1);

---

To use f1 inside that function you can act as if it is a normal vriable, the only difference is that thing you pass as the parameter is modified.