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187808c6c5
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.
28 lines
672 B
Plaintext
28 lines
672 B
Plaintext
@node expl
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@section @code{expl}
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@findex expl
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POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/expl.html}
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Gnulib module: expl
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Portability problems fixed by Gnulib:
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@itemize
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@item
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This function is missing on some platforms:
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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.
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@item
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This function returns NaN for small operands:
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OpenBSD 5.4.
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@item
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This function is only defined as a macro with arguments on some platforms:
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MSVC 9.
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@item
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This function is not declared on some platforms:
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Mac OS X 10.3.
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@end itemize
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Portability problems not fixed by Gnulib:
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@itemize
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@end itemize
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