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2014-05-03- Provide extended-precision math constants req'd by POSIXMartynas Venckus
- Explicitly cast double-precision constants as needed for FLT_EVAL_METHOD = 2 archs OK guenther@, ratchov@
2013-08-06Try and avoid using __builtin_huge_val*() and __builtin_{inf,nan}* on vaxMiod Vallat
running gcc 3, for gcc will output a reserved operand for these. ok martynas@ matthew@ espie@ guenther@
2012-12-05Remove excessive sys/cdefs.h inclusionTheo de Raadt
ok guenther millert kettenis
2011-07-06Finalize work on the math library. It's time to do this monsterMartynas Venckus
commit, and deal with problems (if any) in tree. Note that this adds the following functions. Ports with hacks might need adjustments. nexttoward(3), fma(3), nexttowardf(3), fmaf(3), acoshl(3), asinhl(3), atanhl(3), coshl(3), sinhl(3), tanhl(3), expl(3), expm1l(3), logl(3), log10l(3), log1pl(3), log2l(3), modfl(3), cbrtl(3), hypotl(3), powl(3), erfl(3), erfcl(3), lgammal(3), tgammal(3), ceill(3), floorl(3), lrintl(3), llrintl(3), roundl(3), lroundl(3), llroundl(3), truncl(3), fmodl(3), remainderl(3), remquol(3), nextafterl(3), nexttowardl(3), fmal(3). With this commit, our library implements all functionality required by C99. Documentation bits will follow.
2011-05-25Also enclose variable names with external linkage in __BEGIN_DECLS.Martynas Venckus
Doesn't matter much since C++ ABI used by GCC doesn't mangle variable names; however technically is required by Section 7.5 of the C++ spec. Discussed with/OK guenther@, matthew@.
2011-04-28- enable fenvMartynas Venckus
- add nearbyint, nearbyintf and nearbyintl implemented using fenv
2010-12-14- make HUGE_VAL, HUGE_VALF, HUGE_VALL, INFINITY, NAN expand to theMartynas Venckus
constant expressions with the help of gcc post-3.3. ok millert@, mikeb@. been in snaps for weeks.
2009-07-25int is big enough to fully represent exponents of all supported fpMartynas Venckus
formats. which even for 80-bit & 128-bit long doubles is only 15 bits. therefore, scalbln, scalblnf, scalblnl are essentially the same as scalbn, scalbnf, scalbnl with bounds checking so that LONG_MIN..INT_MIN, and INT_MAX..LONG_MAX ranges properly raise exceptions & yield correct values. looks good to millert@
2009-04-08nuke extern from func decls. ok millert@Martynas Venckus
2008-12-11add __infinityf declaration. (only affects vax). pointed out by miod@Martynas Venckus
2008-12-09expose extended-precision definitions. ok millert@Martynas Venckus
2008-09-09sigh, gamma got lostMartynas Venckus
2008-09-07- replace dtoa w/ David's gdtoa, version 2008-03-15Martynas Venckus
- provide proper dtoa locks - use the real strtof implementation - add strtold, __hdtoa, __hldtoa - add %a/%A support - don't lose precision in printf, don't round to double anymore - implement extended-precision versions of libc functions: fpclassify, isnan, isinf, signbit, isnormal, isfinite, now that the ieee.h is fixed - separate vax versions of strtof, and __hdtoa - add complex math support. added functions: cacos, casin, catan, ccos, csin, ctan, cacosh, casinh, catanh, ccosh, csinh, ctanh, cexp, clog, cabs, cpow, csqrt, carg, cimag, conj, cproj, creal, cacosf, casinf, catanf, ccosf, csinf, ctanf, cacoshf, casinhf, catanhf, ccoshf, csinhf, ctanhf, cexpf, clogf, cabsf, cpowf, csqrtf, cargf, cimagf, conjf, cprojf, crealf - add fdim, fmax, fmin - add log2. (adapted implementation e_log.c. could be more acruate & faster, but it's good enough for now) - remove wrappers & cruft in libm, supposed to work-around mistakes in SVID, etc.; use ieee versions. fixes issues in python 2.6 for djm@ - make _digittoint static - proper definitions for i386, and amd64 in ieee.h - sh, powerpc don't really have extended-precision - add missing definitions for mips64 (quad), m{6,8}k (96-bit) float.h for LDBL_* - merge lead to frac for m{6,8}k, for gdtoa to work properly - add FRAC*BITS & EXT_TO_ARRAY32 definitions in ieee.h, for hdtoa&ldtoa to use - add EXT_IMPLICIT_NBIT definition, which indicates implicit normalization bit - add regression tests for libc: fpclassify and printf - arith.h & gd_qnan.h definitions - update ieee.h: hppa doesn't have quad-precision, hppa64 does - add missing prototypes to gdtoaimp - on 64-bit platforms make sure gdtoa doesn't use a long when it really wants an int - etc., what i may have forgotten... - bump libm major, due to removed&changed symbols - no libc bump, since this is riding on djm's libc major crank from a day ago discussed with / requested by / testing theo, sthen@, djm@, jsg@, merdely@, jsing@, tedu@, brad@, jakemsr@, and others. looks good to millert@ parts of the diff ok kettenis@ this commit does not include: - man page changes
2008-07-24unXXX prototypes: exp2, remquo, nan, exp2f, remquof, nanfMartynas Venckus
2008-07-24- add NAN definition (except on VAX)Martynas Venckus
- add C99 real-floating macros fpclassify isfinite isinf isnan isnormal signbit - add C99 macros isgreater isgreaterequal isless islessequal islessgreater isunordered - add function prototypes, __fpclassify __fpclassifyf __fpclassifyl __isfinite __isfinitef __isfinitel __isinf __isinfl __isnan __isnanl __isnormal __isnormalf __isnormall __signbit __signbitf __signbitl ok millert@
2008-07-22- added HUGE_VALF, HUGE_VALL, INFINITY, FP_INFINITE, FP_NAN,Martynas Venckus
FP_NORMAL, FP_SUBNORMAL, FP_ZERO, FP_ILOGB0, FP_ILOGBNAN definitions, per C99 - classify functions into sections, add missing definitions, add and some '#if 0' functions, and long double definitions, so we see what's needed to be done - other stuff is XXX'd, and will be uncommented soon ok millert@
2008-07-21- add proper double_t and float_t definitions for each archMartynas Venckus
- math.h shouldn't define FLT_EVAL_METHOD, but float.h should (per C99). remove from math.h, and add proper definitions in float.h ok millert@
2008-07-16infnan always returned wrong values, because compiler assumed itMartynas Venckus
returns integer value, so add missing prototype ok millert@
2008-06-11tgamma and tgammafMartynas Venckus
2006-07-12add some more C99 functions: round(3) and roundf(3).Brad Smith
By Steven G. Kargl <kargl at troutmask dot apl dot washington.edu> From FreeBSD
2006-07-12add missing prototypes for trunc/truncf.Brad Smith
2006-05-05delint; ok millert@ beck@Otto Moerbeek
2005-12-13First step in include files overhaul. Use __FOO_VISIBLE (as definedTodd C. Miller
in sys/cdefs.h) instead of _FOO_SOURCE. Also fix several namespace pollution issues, including the byte order defines. OK deraadt@
2005-11-17Introduce a few c99 functions: {l,ll}{rint,round}{,f}. From NetBSD viaOtto Moerbeek
jason@. Man page fixes by jmc@, prodding by jsg@. ok mickey@
2005-01-06provide float_t, double_t, FLT_EVAL_METHOD (dummy C99 constructs)Marc Espie
okay millert@
2003-06-26Better value for vax MAXFLOATJason Wright
2003-06-26redefine MAXFLOAT in vax termsJason Wright
2002-02-16Part one of userland __P removal. Done with a simple regexp with some minor ↵Todd C. Miller
hand editing to make comments line up correctly. Another pass is forthcoming that handles the cases that could not be done automatically.
2001-05-26Change protection of struct exception back from #ifdef __LIBM_PRIVATETodd C. Miller
to #ifndef __cplusplus. It turns out there is code outside of libm that wants to use this. I suppose that's why it is in math.h instead of math_private.h ;-)
2000-03-01$OpenBSD$Todd T. Fries
1998-03-02We don't need two math.h headers incvs server: nothing known aboutTodd C. Miller
`math.h'. The one in libm is more up to date but the one in the include dir is what gets installed.
1997-09-21Well, as we are heading for a release people are encouraged to rebuild theirNiklas Hallqvist
entire trees for testing anyway, I might as well do this intrusive touching of include files now. Added openBSD tags.
1995-10-18initial import of NetBSD treeTheo de Raadt