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* modules/floor-ieee: New file. * m4/floor.m4 (gl_FUNC_FLOOR): Require gl_MATH_H_DEFAULTS. If gl_FUNC_FLOOR_IEEE is also used, test whether floor works according to ISO C 99 with IEC 60559. * m4/floor-ieee.m4: New file. * modules/floor (Files): Add lib/floor.c. (Depends-on): Add 'float'. (configure.ac): Invoke gl_MATH_MODULE_INDICATOR. * lib/math.in.h (floor): New declaration. * m4/math_h.m4 (gl_MATH_H_DEFAULTS): Initialize GNULIB_FLOOR, REPLACE_FLOOR. * modules/math (Makefile.am): Substitute GNULIB_FLOOR, REPLACE_FLOOR. * modules/floor-ieee-tests: New file. * tests/test-floor-ieee.c: New file, based on tests/test-floorf-ieee.c. * tests/test-math-c++.cc: Check the signature of 'floor'. * doc/posix-functions/floor.texi: Mention the new module.
24 lines
542 B
Plaintext
24 lines
542 B
Plaintext
@node floor
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@section @code{floor}
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@findex floor
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POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/floor.html}
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Gnulib module: floor or floor-ieee
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Portability problems fixed by either Gnulib module @code{floor} or @code{floor-ieee}:
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@itemize
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@end itemize
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Portability problems fixed by Gnulib module @code{floor-ieee}:
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@itemize
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@item
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This function returns a positive zero for a minus zero argument
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on some platforms:
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OSF/1 5.1.
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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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