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7fd1d13152
* lib/math.in.h (sqrtl): Replace it if REPLACE_SQRTL is 1. * m4/sqrtl.m4 (gl_FUNC_SQRTL_WORKS): New macro. (gl_FUNC_SQRTL): Invoke it. Set REPLACE_SQRTL to 1 if sqrtl() produces too big rounding errors. * m4/math_h.m4 (gl_MATH_H_DEFAULTS): Initialize REPLACE_SQRTL. * modules/math (Makefile.am): Substitute REPLACE_SQRTL. * modules/sqrtl (configure.ac): Consider REPLACE_SQRTL. (Depends-on): Update conditions. * tests/test-sqrtl.c (my_ldexpl): New function. (main): Add test of a particular value. * doc/posix-functions/sqrtl.texi: Mention the OpenBSD 5.1/SPARC bug.
28 lines
701 B
Plaintext
28 lines
701 B
Plaintext
@node sqrtl
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@section @code{sqrtl}
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@findex sqrtl
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POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/sqrtl.html}
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Gnulib module: sqrtl
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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 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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MacOS X 10.3.
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@item
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This function produces very imprecise results on some platforms:
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OpenBSD 5.1/SPARC.
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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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