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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 |
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| .. | ||
| acos.3 | ||
| acosh.3 | ||
| asin.3 | ||
| asinh.3 | ||
| atan.3 | ||
| atan2.3 | ||
| 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.3 | ||
| ieee_test.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 | ||