jzmaddock c0df5b6747 Change ilogb to consistently return the minimum value of the exponent type ...

(which may be either narrower or wider than the int return type specified in C99).
Change transcendental code which uses ilogb for loop termination, to check for
a minimal value return to correctly handle the case that the value has gone to zero.
See https://svn.boost.org/trac/boost/ticket/12625

2016-12-03 08:50:38 +00:00

..

boost/multiprecision

Change ilogb to consistently return the minimum value of the exponent type

2016-12-03 08:50:38 +00:00