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relibc_openlibm
Ed Schouten 06dbb6e72b Use more uniform style of including headers. 10 vuotta sitten
amd64 06dbb6e72b Use more uniform style of including headers. 10 vuotta sitten
arm 17688c4487 Rename include/fenv.h to <openlibm_fenv.h>. 10 vuotta sitten
bsdsrc 71f60ec632 Prevent the use of deprecated or internal functions if possible. 10 vuotta sitten
i387 17688c4487 Rename include/fenv.h to <openlibm_fenv.h>. 10 vuotta sitten
include 17688c4487 Rename include/fenv.h to <openlibm_fenv.h>. 10 vuotta sitten
ld128 06dbb6e72b Use more uniform style of including headers. 10 vuotta sitten
ld80 06dbb6e72b Use more uniform style of including headers. 10 vuotta sitten
src 06dbb6e72b Use more uniform style of including headers. 10 vuotta sitten
test 8429b82a93 Use proper floating point literals. 10 vuotta sitten
.gitignore 0c307a220b add .pc to .gitignore 10 vuotta sitten
.mailmap f5d2bc53f9 Add mailmap 12 vuotta sitten
.travis.sh 9101f61238 Added Travis test script 10 vuotta sitten
.travis.yml ecfaad0dec try being consistent about quoting to disable arm build from osx 10 vuotta sitten
LICENSE.md e5c38c3e8b README and LICENSE updates. 10 vuotta sitten
Make.inc 168467f09a As discussed in #69, this only requires a minor version number bump. 10 vuotta sitten
Makefile 619f810223 add -f flag to cp in install target 10 vuotta sitten
README.md 769a422f06 Enable tests on OS X too. 10 vuotta sitten
Symbol.map 16b9264f9d Import entire msun from FreeBSD. 13 vuotta sitten
openlibm.pc.in 5b16546ddd Added pkg-config support 10 vuotta sitten

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.