Commit Graph

9 Commits

Author SHA1 Message Date
Keith Packard via Newlib 905aa4c013 libm/math: set errno to ERANGE at gamma poles
For POSIX, gamma(i) (i non-positive integer) should set errno to
ERANGE instead of EDOM.

Signed-off-by: Keith Packard <keithp@keithp.com>
2020-08-05 22:16:31 +02:00
Jozef Lawrynowicz 7db203304e Remove HUGE_VAL definition from libm math functions
This patch removes the definitions of HUGE_VAL from some of the float math
functions. HUGE_VAL is defined in newlib/libc/include/math.h, so it is not
necessary to have a further definition in the math functions.
2019-01-23 10:46:30 +01:00
Jozef Lawrynowicz b14a879d85 Remove matherr, and SVID and X/Open math library configurations
Default math library configuration is now IEEE
2019-01-23 10:46:24 +01:00
Yaakov Selkowitz ec4c079f4b math: remove TRAD_SYNOPSIS
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-12-01 03:41:53 -06:00
Jeff Johnston 53617ce4e6 Consistently use an em-dash in math functions.
- also move previous ChangeLog entry to newlib instead of top-level

        * libc/time/wcsftime.c: Consistently use an em-dash in FUNCTION
summary.
        * libm/common/isgreater.c: Ditto.
        * libm/common/s_fdim.c: Ditto.
        * libm/common/s_fma.c: Ditto.
        * libm/common/s_fmax.c: Ditto.
        * libm/common/s_fmin.c: Ditto.
        * libm/common/s_infinity.c: Ditto.
        * libm/common/s_isnan.c: Ditto.
        * libm/common/s_log2.c: Ditto.
        * libm/common/s_logb.c: Ditto.
        * libm/common/s_lrint.c: Ditto.
        * libm/common/s_lround.c: Ditto.
        * libm/common/s_nearbyint.c: Ditto.
        * libm/common/s_remquo.c: Ditto.
        * libm/common/s_rint.c: Ditto.
        * libm/common/s_round.c: Ditto.
        * libm/common/s_scalbn.c: Ditto.
        * libm/common/s_signbit.c: Ditto.
        * libm/common/s_trunc.c: Ditto.
        * libm/math/w_exp2.c: Ditto.
        * libm/math/w_gamma.c: Ditto.
2015-11-02 16:43:22 -05:00
Jeff Johnston 139f923bb4 2009-03-25 Craig Howland <howland@LGSInnovations.com>
* libc/include/math.h:  (llround, llroundf): Declare.
	* libm/common/s_llround.c: New file, implementing llround().
	* libm/common/sf_llround.c: New file, implementing llroundf().
	* libm/common/sf_lround.c: Remove spurious cast in _DOUBLE_IS_32BITS
	version of function.
	* libm/common/sf_lrint.c: Ditto.
	* libm/common/sf_logb.c:  Corrected return for subnormal argument
	by replacing existing function with a version created from sf_ilogb.c.
	* libm/common/s_logb.c: Ditto, except starting point s_ilogb.c.  Also
	added documentation for logb() and logbf().
	* libm/common/s_signbit.c:  Add signbit() documentation.
	* libm/common/s_log2.c: Update return values to match what w_log2.c has,
	since log2 uses log(); add note about being derived instead of direct.
	* libm/common/sf_fma.c: Add casts to attempt to get correct results,
	as well as comments pointing out problems with the implementation.
	* libm/common/s_fma.c: Add fma() and fmaf() documentation.
	* libm/common/sf_remquo.c: Incorrect quotient returns for large values
	corrected by discarding existing function and replacing with Sun
	verion, with some enhancements.
	* libm/common/s_remquo.c: Ditto.  Add remquo() and remquof()
	documentation.
	* libm/common/s_fmax.c: Add fmax() and fmaxf() documentation.
	* libm/common/s_fmin.c: Add fmin() and fminf() documentation.
	* libm/common/s_fdim.c: Return NAN for NAN arg, add fdim() and fdimf()
	documentation.
	* libm/common/sf_fdim.c: Return NAN for NAN arg, HUGE_VALF for inf arg.
	* libm/common/s_trunc.c: Add trunc() and truncf() documentation.
	* libm/common/s_rint.c: Add rint() and rintf() documentation.
	* libm/common/s_round.c: Add round() and roundf() documentation.
	* libm/common/s_scalbn.c: Add scalbln() and scalblnf() documentation.
	* libm/common/s_infinity.c: Add infinity() and infinityf()
	documentation.
	* libm/common/s_lround.c: Add lround(), lroundf(), llround(), and
	llroundf() documentation.
	* libm/common/s_lrint.c: Add lrint(), lrintf(), llrint(), and llrintf()
	documentation.
	* libm/common/isgreater.c: New file for documenting math.h function-like
	macros isgreater(), isgreaterequal(), isless(), islessequal(),
	islessgreater(), and isunordered().
	* libm/common/s_isnan.c: Add documentation for function-like macros
	fpclassify(), isfinite(), isinf(), isnan(), and isnormal().
	* libm/common/s_nearbyint.c: Add nearbyint() and nearbyintf()
	documentation.
	* libm/common/Makefile.am: Add s_llround.c (src); sf_llround.c (fsrc);
	s_fdim.def, s_fma.def, s_fmax.def, s_fmin.def,
	s_logb.def, s_lrint.def, s_lround.def, s_nearbyint.def, s_remquo.def,
        s_rint.def, s_round.def, s_signbit.def, s_trunc.def, and
        isgreater.def (chobj);
	re-name all existing chew files (chobj) to match source file base
	names (put in underscores), delete all special targets for chew files
	(leaving all to be generated by rule).
	* libm/common/Makefile.in: regenerate.
	* libm/math/w_exp2.c: Add "base 2" to documentation description (and
	delete TRAD_SYNOPSIS).
	* libm/math/w_gamma.c: Add tgamma() and tgammaf() documentation, along
	with some history behind the function names.
	* libm/math/math.tex: Add includes for newly-added documentation (see
	.def additions to common/Makefile.am and math/Makefile.am in this
	ChangeLog list), adjusted existing .def file names to match source file
	base names (added underscores); add mention of HUGE_VALF; rename
	"Version of library" section to "Error Handling" and add some text
	about floating-point exception; added section "Standards Compliance And
	Portability".
	* libm/math/Makefile.am: Add w_exp2.def (chobj);
	re-name all existing chew files (chobj) to match source file base
	names, delete all special targets for chew files (leaving all to be
	generated by rule).
	* libm/math/Makefile.in: regenerated
	* doc/makedoc.c: Change silent ignoring of commands < 5 characters
	to a failure when reading macro file for commands < 4 characters;
	add -v (verbose) option for printing some debugging information;
	get rid of spurious translation of "@*" to "*" (no source files used @*,
	so no existing doc pages were affected); clean up some compiler
	warnings.
	* doc/doc.str: add BUGS and SEEALSO sections (to match texi2pod.pl
	which has them); Remove ITEM command (redundant with makedoc built-in
	"o", not used in any present source file so nothing is lost, anyway).
	* HOWTO: New file to hold information for maintainers regarding how
	to do things.  Initial sections on documentation and ELIX levels.
2009-03-25 19:13:24 +00:00
Jeff Johnston 76a7df5256 2003-10-20 Bob Wilson <bob.wilson@acm.org>
* libc/locale/locale.c: Use double quotes in code.
	* libc/locale/locale.tex: Likewise.
	* libc/libc.texinfo: Hyphenate "floating-point".
	* libc/machine/necv70/necv70.tex: Likewise.
	* libc/stdio/sprintf.c: Likewise.
	* libc/stdio/sscanf.c: Likewise.
	* libc/stdlib/atof.c: Likewise.
	* libc/stdlib/ldtoa.c: Fix comment typo.
	* libc/stdlib/div.c: Use @ifnottex instead of @ifinfo.
	* libc/stdlib/ldiv.c: Likewise.
	* libm/common/s_expm1.c: Likewise.
	* libm/common/s_ilogb.c: Hyphenate "floating-point".  Use "nonzero".
	* libm/common/s_infinity: Hyphenate "double- and single-precision".
	* libm/common/s_nan.c: Likewise.  Also correct the FUNCTION summary.
	* libm/common/s_nextafter.c: Fix typo.  Hyphenate "double-precision"
	and "floating-point".
	* libm/common/s_scalbn.c: Correct the FUNCTION summary.
	* libm/math/e_pow.c: Fix comment typo.
	* libm/math/math.tex: Hyphenate "single-precision" and "floating-point".
	* libm/math/s_asinh.c: Use @ifnottex instead of @ifinfo.
	* libm/math/s_atan.c: Likewise.
	* libm/math/s_frexp.c: Likewise.  Also use "nonzero".
	* libm/math/s_isnan.c: Hyphenate "single-precision" and
	"floating-point".  Use "nonzero".
	* libm/math/s_ldexp.c: Use @ifnottex instead of @ifinfo.
	* libm/math/w_acos.c: Likewise.
	* libm/math/w_acosh.c: Likewise.
	* libm/math/w_asin.c: Likewise.
	* libm/math/w_atan2.c: Likewise.
	* libm/math/w_atanh.c: Likewise.
	* libm/math/w_cosh.c: Likewise.
	* libm/math/w_exp.c: Likewise.
	* libm/math/w_exp2.c: Likewise.  Add missing @end and missing @tex
	version of 2^x in the description.
	* libm/math/w_fmod.c: Use @ifnottex instead of @ifinfo.
	* libm/math/w_gamma.c: Likewise.
	* libm/math/w_hypot.c: Likewise.
	* libm/math/w_j0.c: Likewise.
	* libm/math/w_sinh.c: Likewise.
	* libm/math/w_pow.c: Replace "exp1.0nt" with "exponent".
	* libm/mathfp/mathfp.tex: Hyphenate "single-precision" and
	"floating-point".
	* libm/mathfp/e_acosh.c: Use @ifnottex instead of @ifinfo.
	* libm/mathfp/e_atanh.c: Likewise.
	* libm/mathfp/e_hypot.c: Likewise.
	* libm/mathfp/er_lgamma.c: Likewise.
	* libm/mathfp/s_acos.c: Likewise.
	* libm/mathfp/s_asine.c: Likewise.
	* libm/mathfp/s_asinh.c: Likewise.
	* libm/mathfp/s_atan.c: Likewise.
	* libm/mathfp/s_atan2.c: Likewise.
	* libm/mathfp/s_atangent.c: Likewise.
	* libm/mathfp/s_cosh.c: Likewise.
	* libm/mathfp/s_exp.c: Likewise.
	* libm/mathfp/s_fmod.c: Likewise.
	* libm/mathfp/s_frexp.c: Likewise.  Also use "nonzero".
	* libm/mathfp/s_isnan.c: Hyphenate "single-precision" and
	"floating-point".  Use "nonzero".
	* libm/math/s_pow.c: Replace "exp1.0nt" with "exponent".
	* libm/mathfp/s_ldexp.c: Use @ifnottex instead of @ifinfo.
	* libm/mathfp/s_sineh.c: Likewise.
	* libm/mathfp/w_jn.c: Likewise.
2003-10-20 18:46:38 +00:00
Matthew Green 8195aff714 * implement a new `struct _reent' that is significantly smaller. use this
if _REENT_SMALL is defined in config.h.  define this for xstormy16.
2002-02-03 09:24:18 +00:00
Christopher Faylor 8a0efa53e4 import newlib-2000-02-17 snapshot 2000-02-17 19:39:52 +00:00