Edward Tomasz Napierala 5a38af1fb8 Introduce <sys/qmath.h>, a fixed-point math library from Netflix. ... This makes it possible to perform mathematical operations on fractional values without using floating point. It operates on Q numbers, which are integer-sized, opaque structures initialized to hold a chosen number of integer and fractional bits. For a general description of the Q number system, see the "Fixed Point Representation & Fractional Math" whitepaper[1]; for the actual API see the qmath(3) man page. This is one of dependencies for the upcoming stats(3) framework[2] that will be applied to the TCP stack in a later commit. 1. https://www.superkits.net/whitepapers/Fixed%20Point%20Representation%20&%20Fractional%20Math.pdf 2. https://reviews.freebsd.org/D20477 Reviewed by: bcr (man pages, earlier version), sef (earlier version) Discussed with: cem, dteske, imp, lstewart Sponsored By: Klara Inc, Netflix Obtained from: Netflix Differential Revision: https://reviews.freebsd.org/D20116		2019-08-27 11:46:22 +00:00
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acos.3
acosh.3
asin.3
asinh.3
atan2.3
atan.3
atanh.3
cacos.3
ccos.3
ccosh.3
ceil.3
cexp.3
cimag.3
clog.3
complex.3
copysign.3
cos.3
cosh.3
cpow.3
csqrt.3
erf.3
exp.3
fabs.3
fdim.3
feclearexcept.3
feenableexcept.3
fegetenv.3
fegetround.3
fenv.3
floor.3
fma.3
fmax.3
fmod.3
hypot.3
ieee_test.3
ieee.3
ilogb.3
j0.3
lgamma.3
log.3
lrint.3
lround.3
math.3
nan.3
nextafter.3
remainder.3
rint.3
round.3
scalbn.3
signbit.3
sin.3
sincos.3
sinh.3
sqrt.3
tan.3
tanh.3
trunc.3