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constexpr functions are allowed to be recursive, so there is no guarantee they always halt. Implementations are allowed and intended to give up evaluating them after some recursion depth is reached (the standard suggests a minimum of 512).

Richard Smith
– Richard Smith

2011-12-30 21:01:38 +00:00
Commented Dec 30, 2011 at 21:01
@RichardSmith: While it is easy to put a limit on recursion, I don't think it's as easy to put a meaningful limit on mostly unrestricted evaluation.

celtschk
– celtschk

2012-01-08 17:24:27 +00:00
Commented Jan 8, 2012 at 17:24

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