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[Bug math/14173] ynl() returns wrong value for LDBL_MIN
- From: "polacek at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sources dot redhat dot com
- Date: Mon, 28 May 2012 00:04:49 +0000
- Subject: [Bug math/14173] ynl() returns wrong value for LDBL_MIN
- Auto-submitted: auto-generated
- References: <bug-14173-131@http.sourceware.org/bugzilla/>
http://sourceware.org/bugzilla/show_bug.cgi?id=14173
--- Comment #1 from Marek Polacek <polacek at redhat dot com> 2012-05-28 00:04:49 UTC ---
According to Joseph:
"My guess is that the overflow of yn has involved an internal computation
such as Inf - Inf or Inf / Inf that generated NaNs. It looks rather like
the ynl code that tries to stop this happening is confused about
GET_LDOUBLE_WORDS, which appears to set the sign+exponent value to a
*sign-extended* value (so 0xffffffff not 0xffff for -Inf)."
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