musl/src/math/nextafterl.c, branch master

long double cleanup, initial commit

2013年09月05日T11:30:07+00:00

new ldshape union, ld128 support is kept, code that used the old
ldshape union was rewritten (IEEEl2bits union of freebsd libm is
not touched yet)
ld80 __fpclassifyl no longer tries to handle invalid representation

add FORCE_EVAL macro to evaluate float expr for their side effect

2012年05月06日T19:24:28+00:00

updated nextafter* to use FORCE_EVAL, it can be used in many other
places in the math code to improve readability.

fix unused variable warnings in new nextafter/nexttoward code

2012年05月06日T18:48:20+00:00

apparently initializing a variable is not "using" it but assigning to
it is "using" it. i don't really like this fix, but it's better than
trying to make a bigger cleanup just before a release, and it should
work fine (tested against nsz's math tests).

math: nextafter and nexttoward cleanup

2012年05月06日T11:08:59+00:00

make nexttoward, nexttowardf independent of long double representation.
fix nextafterl: it did not raise underflow flag when the result was 0.

first commit of the new libm!

2012年03月13日T05:17:53+00:00

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.