Re^4: nested #if directive matching matching

Using the counter, bitshift left and increment if true. Else is an XOR 1. Endif is a bitshift right.

Initialize with a sentinel value so you know when you're done.

Comment on Re^4: nested #if directive matching matching

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Re^5: nested #if directive matching matching by GrandFather (Saint) on Jun 26, 2012 at 21:13 UTC
That is a stack. Not an overly deep one, but probably sufficient for the purpose. True laziness is hard work	[reply]