This is probably very basic but I'm going to ask anyway:
While searching the freaks forums for various answers to other questions, I've seen code snippets where the author would have a #include inserted in a C source file but no filename.h. I didn't know such a construct was allowed. I searched the GCC documentation but didn't see where this particular format was described.
I would appreciate it if someone would enlighten me as to proper usage and benefits. Maybe I misinterpreted the code snippets that I was reading.