Include guards in C

[howtechstuffworks]

Is it necessary to include guards in C. Because we can declare functions anytime(only the definition needs to be once). C++ have classes hence there is a chance that same class might be defined twice. I dont think we need guards in C. Please comment, Thanks.

[Disch]

C would need them for struct definitions at least.

At any rate it doesn't hurt to put them in, so you might as well always put them in.

[Catfish]

Should be done by the compiler/preprocessor.
But since it isn't you might as well keep doing it yourself. Better safe than sorry. Others will appreciate your pain.

[howtechstuffworks]

Oh Thanks. Structs are there in C++. I was just wondering why do we need them as C doesnt have classes. Makes sense. More than the prospect of using it or not, I was thinking about why we need to add when we can declare more than one functions. Thanks a lot guys.