[Bug math/2574] Incorrect return from float log10 (0X1.118C6318C6319P+0)

[jsm28 at gcc dot gnu.org]

http://sourceware.org/bugzilla/show_bug.cgi?id=2574

Joseph Myers <jsm28 at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|SUSPENDED                   |RESOLVED
         Resolution|                            |INVALID

--- Comment #2 from Joseph Myers <jsm28 at gcc dot gnu.org> 2012-02-26 17:26:48 UTC ---
When the argument is rounded to float (0X1.118C64P+0), the correctly rounded
result becomes 0X1.D7C3B0P-6, so the error is 1ulp not 12ulp, and since there's
already a test of log10f in the testsuite with a 2ulp error recorded in
libm-test-ulps for x86_64, I don't think it's useful to add this test as well
or keep a bug open for this 1ulp error.

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