Is it wise to have include guards around template classes? Aren't template classes supposed to be reparsed each time you reference them with a different implementation? N.B In Visual C++ 2008 I g...

Are 'redundant include guards' necessary in Codegear RAD Studio 2009? Is the compiler smart enough to deal with this on it's own? For example, I might have the following 'include guard' in f...

My very basic knowledge of C and compilation process has gone rusty lately. I was trying to figure out answer to the following question but I could not connect compilation, link and pre-processing...

Why does each .h file starts with #ifndef #define #endif? We can certainly compile the program without those directives.

I added #ifndef..#define..#endif to a file of my project and the compiler fails. As soon as I remove it or put any other name in the define it compiles fine. What could be the problem? Sounds lik...