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[Bug math/13629] clog() returns wrong values around z=1


http://sourceware.org/bugzilla/show_bug.cgi?id=13629

--- Comment #6 from Joseph Myers <jsm28 at gcc dot gnu.org> 2012-07-26 11:35:59 UTC ---
The next case - where real or imaginary part of the argument to clog or clog10
has absolute value exactly 1, and the other part is small (the only case where
underflow exceptions may correctly occur for the real part of the result) - has
been fixed by:

commit da865e95bcf9a5365de78fa6b5c681aca0a1bb46
Author: Joseph Myers <joseph@codesourcery.com>
Date:   Thu Jul 26 11:31:35 2012 +0000

    Improve clog, clog10 handling of values with real or imaginary part 1 (bug
13629).

Some other cases near |z|=1 remain to be fixed.

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