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diff doc/posix-functions/expl.texi @ 17655:bfa6d7414863

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expl: avoid incorrect expl(small_value) on OpenBSD 5.4 OpenBSD 5.4, expl() incorrectly returns 'nan' for small values. Detect this and use gnulib's expl() in that case. Discussed here: http://marc.info/?t=139159081700002&r=1&w=2 (Message from David Coppa on 2014-02-05 to openbsd-tech mailing list). Fixed here (in revision 1.2): http://www.openbsd.org/cgi-bin/cvsweb/src/lib/libm/src/ld128/s_floorl.c * m4/expl.m4 (gl_FUNC_EXPL): Add a check for this condition. * doc/posix-functions/expl.texi: Mention the workaround.
author Assaf Gordon <agordon@wi.mit.edu>
date Wed, 16 Apr 2014 11:35:55 -0400
parents 498a2211d839
children
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--- a/doc/posix-functions/expl.texi
+++ b/doc/posix-functions/expl.texi
@@ -12,6 +12,9 @@
 This function is missing on some platforms:
 FreeBSD 6.0, NetBSD 5.0, OpenBSD 3.8, Minix 3.1.8, HP-UX 11, IRIX 6.5, Solaris 9, Cygwin, Interix 3.5, BeOS.
 @item
+This function returns NaN for small operands:
+OpenBSD 5.4.
+@item
 This function is only defined as a macro with arguments on some platforms:
 MSVC 9.
 @item