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relibc_openlibm
Ed Schouten c2154fd3f3 Add missing void keyword to keep -Wold-style-definition happy. 10 years ago
amd64 93aef7f9b1 Remove $ARCH/openlibm_fenv.h. 10 years ago
arm 93aef7f9b1 Remove $ARCH/openlibm_fenv.h. 10 years ago
bsdsrc bc3f903bc2 Move public headers into include/ and private headers into src/. 10 years ago
i387 93aef7f9b1 Remove $ARCH/openlibm_fenv.h. 10 years ago
include bc3f903bc2 Move public headers into include/ and private headers into src/. 10 years ago
ld128 06dbb6e72b Use more uniform style of including headers. 10 years ago
ld80 06dbb6e72b Use more uniform style of including headers. 10 years ago
src c2154fd3f3 Add missing void keyword to keep -Wold-style-definition happy. 10 years ago
test c485db579d Some fixes to be able to build the system versions of the tests. 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 bc3f903bc2 Move public headers into include/ and private headers into src/. 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.