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relibc_openlibm
Ed Schouten f6b045b4cd Add bits to openlibm headers to switch between using the host headers. 10 years ago
amd64 17688c4487 Rename include/fenv.h to <openlibm_fenv.h>. 10 years ago
arm 17688c4487 Rename include/fenv.h to <openlibm_fenv.h>. 10 years ago
bsdsrc 71f60ec632 Prevent the use of deprecated or internal functions if possible. 10 years ago
i387 17688c4487 Rename include/fenv.h to <openlibm_fenv.h>. 10 years ago
include 17688c4487 Rename include/fenv.h to <openlibm_fenv.h>. 10 years ago
ld128 beb387c4b2 Use <openlibm.h> consistently. 10 years ago
ld80 55ac462808 Add lgammal_r(). 10 years ago
src f6b045b4cd Add bits to openlibm headers to switch between using the host headers. 10 years ago
test 8429b82a93 Use proper floating point literals. 10 years ago
.gitignore 0c307a220b add .pc to .gitignore 10 years ago
.mailmap f5d2bc53f9 Add mailmap 12 years ago
.travis.sh 9101f61238 Added Travis test script 10 years ago
.travis.yml ecfaad0dec try being consistent about quoting to disable arm build from osx 10 years ago
LICENSE.md e5c38c3e8b README and LICENSE updates. 10 years ago
Make.inc 168467f09a As discussed in #69, this only requires a minor version number bump. 10 years ago
Makefile 619f810223 add -f flag to cp in install target 10 years ago
README.md 769a422f06 Enable tests on OS X too. 10 years ago
Symbol.map 16b9264f9d Import entire msun from FreeBSD. 13 years ago
openlibm.pc.in 5b16546ddd Added pkg-config support 10 years ago

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.