hey, C hackers

Malcolm · Post by **Malcolm** » Wed Nov 14, 2007 6:48 pm

I have this situation. Consider two structs that look like this ...

struct A { struct B s1; };
struct B { struct A s2; };

Compiler tosses an incomplete type error cos it obviously can't allocate memory for struct A till it knows struct B. But struct B needs struct A first.

What's the syntax that assures the compiler that struct B gets defined later, so I can initially define struct A?

Post by **TheCatt** » Wed Nov 14, 2007 6:49 pm

HAHAHAHA! C!

Good one.

Malcolm · Post by **Malcolm** » Wed Nov 14, 2007 7:24 pm

TheCatt wrote:HAHAHAHA! C!

Good one.

Yeah, this assignment appears to be : 1% thinking, 99% figure out how to do forward declaration in C w\ a union that uses five structs, each of which also uses the union. Both my classes have quickly devolved to suckage this semester.

Post by **TheCatt** » Wed Nov 14, 2007 7:43 pm

Just reinforces my notion that school is pretty much worthless.

Post by **GORDON** » Wed Nov 14, 2007 8:09 pm

Don't you mean ChEckers?

Malcolm · Post by **Malcolm** » Thu Nov 15, 2007 3:21 am

I did some digging & found a way to do it w\ about 10 header files in preprocessor statements. So, in preliminary testing, it works.

Malcolm · Post by **Malcolm** » Thu Nov 15, 2007 3:23 am

TheCatt wrote:Just reinforces my notion that school is pretty much worthless.

Not to be all doom & gloom on that system (since I'm kinda in it), but you're right more than 50% of the time.