Vignatti Tiago (Nokia-MS/Helsinki) wrote: >> +#ifndef CLIENT_IDS_H >> +#define CLIENT_IDS_H > > does anyone knows if these macros on the top of header files are useful for > some reason? I don't think so.
They prevent errors about redefined types/macros if the file gets included twice for some reason - they're a very common C idiom, required in many projects for good reason. See http://en.wikipedia.org/wiki/Include_guard for a basic explanation - I'm sure google can find much more to educate you about them. -- -Alan Coopersmith- [email protected] Oracle Solaris Platform Engineering: X Window System _______________________________________________ [email protected]: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: http://lists.x.org/mailman/listinfo/xorg-devel
