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* lib/math.in.h (ilogbf): New declaration. * lib/ilogbf.c: New file. * m4/ilogbf.m4: New file. * m4/math_h.m4 (gl_MATH_H): Test whether ilogbf is declared. (gl_MATH_H_DEFAULTS): Initialize GNULIB_ILOGBF, HAVE_ILOGBF, REPLACE_ILOGBF. * modules/math (Makefile.am): Substitute GNULIB_ILOGBF, HAVE_ILOGBF, REPLACE_ILOGBF. * modules/ilogbf: New file. * tests/test-math-c++.cc: Check the declaration of ilogbf. * doc/posix-functions/ilogbf.texi: Mention the new module.
25 lines
617 B
Plaintext
25 lines
617 B
Plaintext
@node ilogbf
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@section @code{ilogbf}
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@findex ilogbf
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POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/ilogbf.html}
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Gnulib module: ilogbf
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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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Minix 3.1.8, AIX 5.1, HP-UX 11, IRIX 6.5, Solaris 9, MSVC 9.
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@item
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This function returns a wrong result for a zero argument on some platforms:
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OpenBSD 4.9.
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@item
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This function returns a wrong result for an infinite argument on some platforms:
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NetBSD 5.1, OpenBSD 4.9.
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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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