src/lib/msun/bsdsrc/mathimpl.h, branch releng/12.4FreeBSD source treehttps://cgit-dev.freebsd.org/src/atom?h=releng%2F12.42017-11-18T14:26:50Zspdx: initial adoption of licensing ID tags.2017-11-18T14:26:50ZPedro F. Giffunipfg@FreeBSD.org2017-11-18T14:26:50Zurn:sha1:df57947f083046d50552e99b91074927d2458708
The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.
Initially, only tag files that use BSD 4-Clause "Original" license.
RelNotes: yes
Differential Revision: https://reviews.freebsd.org/D13133
Removed an unused declaration which was so old that it wasn't a prototype2005-11-18T05:03:12ZBruce Evansbde@FreeBSD.org2005-11-18T05:03:12Zurn:sha1:3f1a8f462c319c7b1ca1040cbd0b00f6f23c0b8c
and thus just broke building at any nonzero WARNS level.
Fixed nearby style bugs.
Fixed aliasing bugs in TRUNC() by using the fdlibm macros for access2005-09-19T11:28:19ZBruce Evansbde@FreeBSD.org2005-09-19T11:28:19Zurn:sha1:0b42281ee94650a7f27d21258d171b1a6f3bda22
to doubles as bits. fdlibm-1.1 had similar aliasing bugs, but these
were fixed by NetBSD or Cygnus before a modified version of fdlibm was
imported in 1994. TRUNC() is only used by tgamma() and some
implementation-detail functions. The aliasing bugs were detected by
compiling with gcc -O2 but don't seem to have broken tgamma() on i386's
or amd64's. They broke my modified version of tgamma().
Moved the definition of TRUNC() to mathimpl.h so that it can be fixed
in one place, although the general version is even slower than necessary
because it has to operate on pointers to volatiles to handle its arg
sometimes being volatile. Inefficiency of the fdlibm macros slows
down libm generally, and tgamma() is a relatively unimportant part of
libm. The macros act as if on 32-bit words in memory, so they are
hard to optimize to direct actions on 64-bit double registers for
(non-i386) machines where this is possible. The optimization is too
hard for gcc on amd64's, and declaring variables as volatile makes it
impossible.
GC unused declaration2004-12-16T20:40:49ZDavid Schultzdas@FreeBSD.org2004-12-16T20:40:49Zurn:sha1:527055d12fd930fd51b0af134956b845e48c7861Remove some kludges designed to ensure that the compiler didn't round2004-05-17T01:04:37ZDavid Schultzdas@FreeBSD.org2004-05-17T01:04:37Zurn:sha1:6955d806c0b4246a9f2fdffe6c599b30fc89bcf3
constants the wrong way on the VAX. Instead, use C99 hexadecimal
floating-point constants, which are guaranteed to be exact on binary
IEEE machines. (The correct hexadecimal values were already provided
in the source, but not used.) Also, convert the constants to
lowercase to work around a gcc bug that wasn't fixed until gcc 3.4.0.
Prompted by: stefanf
Assume __STDC__, remove non-__STDC__ code.2002-05-28T17:03:12ZAlfred Perlsteinalfred@FreeBSD.org2002-05-28T17:03:12Zurn:sha1:a82bbc730e20fe9dec4abeb1d949b2d02869032a
Submitted by: keramida
Remove __P() usage.2002-03-21T23:54:04ZDavid E. O'Brienobrien@FreeBSD.org2002-03-21T23:54:04Zurn:sha1:69160b1eb704d1931b536a65fcf50757ddbfc469BSD 4.4 Lite Lib Sources1994-05-27T05:00:24ZRodney W. Grimesrgrimes@FreeBSD.org1994-05-27T05:00:24Zurn:sha1:58f0484fa251c266ede97b591b499fe3dd4f578e