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Fork of the OpenLibm math library with fx-9860G and fx-CG 50 support.
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Ed Schouten c253db68ca Add a new compilation flag: OPENLIBM_ONLY_THREAD_SAFE. 
The global signgam variable is only part of the X/Open System
Interfaces. It is not part of the POSIX base definitions nor the C
standard.

I'd rather have it disabled for my specific use-case, so introduce a new
compilation flag that we can use to disable it.
2015-01-10 09:57:33 +01:00
amd64 Remove weak reference construct from fenv code. 2015-01-10 09:41:32 +01:00
arm Rename include/fenv.h to <openlibm_fenv.h>. 2015-01-09 13:11:12 +01:00
bsdsrc Prevent the use of deprecated or internal functions if possible. 2015-01-07 22:07:48 +01:00
i387 Remove weak reference construct from fenv code. 2015-01-10 09:41:32 +01:00
include Rename include/fenv.h to <openlibm_fenv.h>. 2015-01-09 13:11:12 +01:00
ld80 Use more uniform style of including headers. 2015-01-09 14:24:24 +01:00
ld128 Use more uniform style of including headers. 2015-01-09 14:24:24 +01:00
src Add a new compilation flag: OPENLIBM_ONLY_THREAD_SAFE. 2015-01-10 09:57:33 +01:00
test Remove switch from tests to include system headers. 2015-01-09 14:29:56 +01:00
.gitignore add .pc to .gitignore 2014-06-20 10:08:16 -04:00
.mailmap Add mailmap 2012-08-24 20:53:18 +05:30
.travis.sh Added Travis test script 2015-01-05 11:36:43 +00:00
.travis.yml try being consistent about quoting to disable arm build from osx 2015-01-06 21:37:28 -08:00
LICENSE.md README and LICENSE updates. 2014-12-05 00:44:29 +05:30
Make.inc As discussed in #69, this only requires a minor version number bump. 2014-12-05 10:35:30 +05:30
Makefile add -f flag to cp in install target 2015-01-06 21:26:48 -08:00
openlibm.pc.in Added pkg-config support 2014-05-19 15:30:10 +01:00
README.md Enable tests on OS X too. 2015-01-05 23:48:29 +05:30
Symbol.map Import entire msun from FreeBSD. 2011-12-15 11:29:35 +05:30

README.md

OpenLibm

Build Status

OpenLibm is an effort to have a high quality, portable, standalone C mathematical library (libm). It can be used standalone in applications and programming language implementations.

The project was born out of a need to have a good libm for the Julia programming langage that worked consistently across compilers and operating systems, and in 32-bit and 64-bit environments.

History

The OpenLibm code derives from the FreeBSD msun and OpenBSD libm implementations, which in turn derives from FDLIBM 5.3. As a result, it includes a number of fixes and updates to FDLIBM that have accumulated over the years in msun, and optimized versions of many functions.

Platform support

OpenLibm builds on Linux, Mac OS X, and Windows, and with little effort, should build on FreeBSD as well. It builds with both GCC and clang. Although largely tested on x86, it also includes experimental support for ARM. The original msun also includes support for mips, sparc64, powerpc, ia64, and alpha. These are present in the OpenLibm source tree, but no attempt has been made to build any of these.

Build instructions

  1. make or make USEGCC=1 to build with GCC. This is the default on Linux and Windows.
  2. make USECLANG=1 to build with clang. This is the default on OS X.