[Bug math/18981] New: i386 scalb*, ldexp return with excess range and precision

["jsm28 at gcc dot gnu.org" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=18981

            Bug ID: 18981
           Summary: i386 scalb*, ldexp return with excess range and
                    precision
           Product: glibc
           Version: 2.22
            Status: NEW
          Severity: normal
          Priority: P2
         Component: math
          Assignee: unassigned at sourceware dot org
          Reporter: jsm28 at gcc dot gnu.org
  Target Milestone: ---

The i386 scalb* and ldexp functions return values with excess range and
precision.  This causes test failures following Wilco Dijkstra's patches to
make isfinite etc. expand inline, but was unambiguously a bug in any case -
these functions have fully determined results bound to IEEE operations and so
must not have excess range and precision in their results.  (Excess precision
arises for these functions only in the case of subnormal results.)

-- 
You are receiving this mail because:
You are on the CC list for the bug.