Hey Everybody,
I keep getting these warnings when I compile my program:

19: warning: extra tokens at end of #ifndef directive
19: warning: missing whitespace after the macro name

both apply to the same line number, which has nothing to do with the ifndef statement. I tried looking for an obvious solution, but could not find one. Any hints would be great.

Thanks!

Nevermind...I figured it out.

but how

I had same problem. It solved by renaming define name of header file. Example:
#ifndef PLOTTER.H -> #ifndef PLOTTER_H

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