Returning two values (solved)
 

Is is possible to have a function to return two values instead of one?
Or do i have to have two functions for each value?

You will want to use a structure to do what you are asking.

example:

From there you can either pass in a pointer to a function and fill in the values or use a structure (or pointer to) as a return value for the function.

And, btw, when you are calling a printf function (or any of the varidic funtions) You want to provide enough arguments for each of the format specifiers. i.e. for two %d's you will want two arguments passed to the function.
I assume you did that just for an example of your question, but thought I would comment anyway...

Just for two integers, another option would be to provide references to the two:


Then you call the function like so:


This allows for you to return whether the function succeeded as well. Both methods put forward in this thread will work.

Agreed, references and bool return values would suffice in C++, but for a C program, they will not be of much assistance...

C and C++ both have the concept of references and pointers last I checked

Maybe he is referring to the bool type.

C has references?

yes

well, I reckon I am more confused than I had originally believed myself to be. I was certain that there were differences between references and pointers. My main argument would probably be: "Then why be there??" Isn't the use of references more restrictive (i.e. for safety) ?

I was also under the impression that standard C does not specify the use of references.. just goes to show what I know...

There is definitely a difference between a "reference" per C++ definition and a pointer. The choice of the term, "reference" for C++, was a little shaky, as pointers, labels, nicknames, aliases, are ALL references. However, one cannot pass a "reference" (as defined in C++) in C. The "&" operator is strictly an address-of operator and the use inside the function has to be the same as when dereferencing a pointer. In C++, on the other hand, a "reference" is an alias and a passed reference amounts to one fewer levels of indirection.