WireGuard implementation for the OpenBSD kernel https://git.zx2c4.com/wireguard-openbsd/atom/lib/libm/src/math_private.h?h=jd%2Fsimplify-queueing 2016-09-12T19:47:01Z 2016-09-12T19:47:01Z guenther guenther@openbsd.org 2016-09-12T19:47:01Z urn:sha1:2f2c00629eff6a304ebffb255fc56f4fa7a1833b All dependencies on libc are now via reserved/standardized names. ok kettenis@ millert@ deraadt@ 2014-06-02T19:31:17Z kettenis kettenis@openbsd.org 2014-06-02T19:31:17Z urn:sha1:3609bd3bc5b2da286f66e84614acf704fc8facb5 commit messages that fixes this says: "it was intentionally left broken as an optimization". right! ok martynas@, daniel@ 2013-11-12T20:35:09Z martynas martynas@openbsd.org 2013-11-12T20:35:09Z urn:sha1:121297559c3b15aebdd7e70408879df3901d42a0 redeclaring each time in ld{80,128}. Pointed out by theo. 2011-07-26T11:43:01Z martynas martynas@openbsd.org 2011-07-26T11:43:01Z urn:sha1:016765a703b5b1e9f563a6ca67e84b5afc03058e it actually stores floats in natural-endian--therefore the existing checks became wrong. Take into account __VFP_FP__, effectively bringing back the old behavior. This way it will work now, and in the future when some of our platforms are switched to FPA, where it's much faster. 2011-07-26T09:24:52Z martynas martynas@openbsd.org 2011-07-26T09:24:52Z urn:sha1:80626675329654e6b943890c769bfd67004f09a9 former anymore. OK miod@. 2011-07-06T00:02:42Z martynas martynas@openbsd.org 2011-07-06T00:02:42Z urn:sha1:49393c004c040ee201e6408db68882c3fe4cb110 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. 2011-07-04T15:00:56Z martynas martynas@openbsd.org 2011-07-04T15:00:56Z urn:sha1:a26ab1d99ec82f887f620403fadf9f3d2d194f20 should be 96-bits on 32-bit architectures, and 128-bits on 64-bit architectures. - Add abstract macros to operate on long doubles by words. To be used soon. 2008-12-09T20:00:35Z martynas martynas@openbsd.org 2008-12-09T20:00:35Z urn:sha1:390c8400525fc0ecc9e2c49c2246076b1b49fe19 important functions: acosl, asinl, atanl, atan2l, cosl, sinl, tanl, exp2l, frexpl, ilogbl, ldexpl, logbl, scalbnl, fabsl, hypotl, powl, sqrtl, rintl, copysignl, nanl, fdiml, fmaxl, fminl. mostly taken from freebsd, needed alot of changes to adapt. note, these are all c versions; and are quite slow when architectures have, e.g. sqrt. assembly versions will be added afterwards - make them .weak/__weak_alias to the double precision versions on other archs - no need to have two finites. finite() and finitef() are non-standard 3BSD obsolete versions of isfinite. remove from libm. make them weak_alias in libc to __isfinite and __isfinitef instead. similarly make 3BSD obsolete versions of isinf, isinff, isnan, isnanf weak_aliases to C99's __isinf, __isinff, __isnan, __isnanf - remove unused infinity.c. the c library has infinities for each supported platform - use STRICT_ASSIGN cast hack for _kernel_rem_pio2, so that the double version has a chance of working on i386 with extra precision - avoid storing multiple copies of the pi/2 array, since it won't vary - bump major due to removed finite/finitef. although they will be in libc, which anything is linked to, minor bump might be enough ok millert@. tested by sthen@, jsg@, ajacoutot@, kili@, naddy@ 2008-09-07T20:36:06Z martynas martynas@openbsd.org 2008-09-07T20:36:06Z urn:sha1:7b36286a70b46b494e2bca4a889ab49ef62ba86c - 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 2008-07-24T09:40:16Z martynas martynas@openbsd.org 2008-07-24T09:40:16Z urn:sha1:eac90eaa1ed342e1c46cdff47d1897d7ff33fc7c - remove never-enabled signbit. libc has is now - add C99 implementations, from freebsd, for nan(), nanf() (needed to write _digittoint for it), exp2(), exp2f(), remquo(), remquof(), needed STRICT_ASSIGN macro for math_private.h - bump major man pages will follow exp2{,f} has been requested by chl@ ok millert@