[Bug math/13892] New: cexp overflow

[jsm28 at gcc dot gnu.org]

http://sourceware.org/bugzilla/show_bug.cgi?id=13892

             Bug #: 13892
           Summary: cexp overflow
           Product: glibc
           Version: 2.15
            Status: NEW
          Severity: normal
          Priority: P2
         Component: math
        AssignedTo: unassigned@sourceware.org
        ReportedBy: jsm28@gcc.gnu.org
    Classification: Unclassified


The cexp function has undue overflows arising from overflow in its internal
call to exp.  Example (tested x86): cexp (709.8125 + 0.75 * I) overflows,
although both real and imaginary parts of the result are actually within the
range of double.  (Examples with somewhat larger real part of the argument can
also show undue overflows where one part of the result should be finite and the
other infinite but instead both are infinite at present.)

I'm testing a patch for this.

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