> Inlining integers in pointers by shifting up and adding 1 is a quite commo... | Hacker News

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		masklinn on Dec 16, 2011 \| parent \| context \| favorite \| on: How big are PHP arrays (and values) really? > Inlining integers in pointers by shifting up and adding 1 is a quite common trick though and I have seen it in more programming language implementations than MRI. Yeah, I know about it, I just did not think MRI had bothered with it anymore than CPython.

vidarh on Dec 16, 2011 [–]

false, true, nil, Symbol's and Fixnum's are all special cased with typetags in MRI.

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