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[Bug libfortran/49024] REAL*16 ERFC_SCALED inaccuracy
- From: "fxcoudert at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 23 May 2011 20:17:54 +0000
- Subject: [Bug libfortran/49024] REAL*16 ERFC_SCALED inaccuracy
- Auto-submitted: auto-generated
- References: <bug-49024-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49024
--- Comment #2 from Francois-Xavier Coudert <fxcoudert at gcc dot gnu.org> 2011-05-23 19:53:31 UTC ---
The 128-bit code for scaled erfc in Cephes is terrible. For ERFC_SCALED(1), it
gives:
0.427592...
instead of:
0.427583...
I don't see any easy way about this, someone will have to play minimax :)