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dogprez
on Jan 23, 2015
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What makes Nim practical?
Your example isn't exactly true. Clang and GCC both do tail call optimizations. Compiling language functions to C functions doesn't 100% preclude you from TCO.
http://david.wragg.org/blog/2014/02/c-tail-calls-1.html
bch
on Jan 23, 2015
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[–]
See also:
http://www.pipeline.com/~hbaker1/CheneyMTA.html
It looks like work/research in this area has been going on for at least ~20 years.
jpolitz
on Jan 23, 2015
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[–]
Indeed it has. For a few more examples, see also
http://www.ustream.tv/recorded/43777177
, and
http://www.ccs.neu.edu/racket/pubs/stackhack4.html
. Pyret (
http://pyret.org
) uses similar stack techniques to these to simulate an arbitrarily deep stack while compiling to JS.
pjmlp
on Jan 23, 2015
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[–]
It will, otherwise semantics will depend on which C compiler is available and ANSI C doesn't require TCO.
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