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* optimize signbit macroRich Felker2012-03-301-2/+2
* make math.h more c++-friendlyRich Felker2012-03-301-2/+5
* move nonstandard gamma() etc. to _GNU_SOURCE only•••it's not even provided in the library at the moment, but could easily be provided with weak aliases if desired. Rich Felker2012-03-171-4/+4
* c++ seems to want some casts in the float representation-access macrosRich Felker2012-03-171-2/+2
* in math.h make lgamma_r and non-double bessel _GNU_SOURCE only•••long double and float bessel functions are no longer xsi extensions nsz2012-03-151-20/+18
* efficient sincos based on sin and cosnsz2012-03-151-0/+4
* first commit of the new libm!•••thanks to the hard work of Szabolcs Nagy (nsz), identifying the best (from correctness and license standpoint) implementations from freebsd and openbsd and cleaning them up! musl should now fully support c99 float and long double math functions, and has near-complete complex math support. tgmath should also work (fully on gcc-compatible compilers, and mostly on any c99 compiler). based largely on commit 0376d44a890fea261506f1fc63833e7a686dca19 from nsz's libm git repo, with some additions (dummy versions of a few missing long double complex functions, etc.) by me. various cleanups still need to be made, including re-adding (if they're correct) some asm functions that were dropped. Rich Felker2012-03-131-9/+64
* fix nan/infinity macros in math.h, etc.•••the previous version not only failed to work in c++, but also failed to produce constant expressions, making the macros useless as initializers for objects of static storage duration. gcc 3.3 and later have builtins for these, which sadly seem to be the most "portable" solution. the alternative definitions produce exceptions (for NAN) and compiler warnings (for INFINITY) on newer versions of gcc. Rich Felker2012-03-021-6/+8
* typo in math.h c version checkRich Felker2012-03-021-1/+1
* make math.h compatibe with c89Rich Felker2012-03-021-1/+5
* add float_t and double_t to math.hRich Felker2012-02-151-0/+2
* fix all missing instances of __cplusplus checks/extern "C" in headers•••patch by Arvid Picciani (aep) Rich Felker2011-11-101-0/+8
* isgreater etc. relation macros for math.hRich Felker2011-06-081-0/+18
* extensive header cleanup for standards conformance & correctness•••thanks to Peter Mazinger (psm) for pointing many of these issues out and submitting a patch on which this commit is loosely based Rich Felker2011-02-141-17/+19
* initial check-in, version 0.5.0Rich Felker2011-02-121-0/+300