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Re:HTML + CSS3 is Turing complete by Xk on Tuesday March 08, 2011 @10:52AM (#2301294)
C macros are not Turing complete, they're a pushdown automaton.

C++ templates are.

Check out this IOCCC entry which does simulate a Turing machine, but only by having another script repeatedly run it.

Edit: Yes, I meant to copy the link, see mchouza's comment for the link.

Re:HTML + CSS3 is Turing complete by mchouza on Tuesday March 08, 2011 @11:08AM (#2301358)
Link: http://www.ioccc.org/2001/ (herrmann1 files)
Re:HTML + CSS3 is Turing complete by elitheeli on Tuesday March 08, 2011 @11:15AM (#2301390)
Sorry, you're totally right. My bad.