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[Bug math/16516] spurious underflow exception from erff
- From: "zimmerma+gcc at loria dot fr" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sourceware dot org
- Date: Tue, 04 Feb 2014 09:53:44 +0000
- Subject: [Bug math/16516] spurious underflow exception from erff
- Auto-submitted: auto-generated
- References: <bug-16516-131 at http dot sourceware dot org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=16516
--- Comment #2 from Paul Zimmermann <zimmerma+gcc at loria dot fr> ---
and another example in double precision:
Testing function erf for exponent 0 [seed=7626].
rounding mode MPFR_RNDN:
wrong underflow flag for x=-3.8b7f12369ded8@-256
library gives -4.0000000000004@-256
mpfr gives -4.0000000000004@-256
underflow: mpfr 0, library 16
Since the result is larger in magnitude than the smallest normal number
0x1p-1022, we should get no underflow exception.
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