what is _NO_PROTO

[spra1323]

I saw in many software's utility files ..something called #ifndef _NO_PROTO ..can some one explain me ..what is it ??

[Moschops]

It means that all the code following that, as far as the #endif, will be ignored if someone has already written #define _NO_PROTO

It's commonly used in header guards.

http://en.wikipedia.org/wiki/Include_guard

[spra1323]

thanx moschops ...