src-test2/lib/msun/src/s_rintf.c, branch release/2.2.0FreeBSD source treehttps://cgit-dev.freebsd.org/src-test2/atom?h=release%2F2.2.01996-08-28T16:34:36ZMade rintf() actually work. It was completely broken (when s_rint.c1996-08-28T16:34:36ZBruce Evansbde@FreeBSD.org1996-08-28T16:34:36Zurn:sha1:2aa9f7ca2c32749130c8bfdcd38b2a2a95076867
was compiled with -O) by the precision bug in the i386 version of
gcc (assignments and casts don't clip the precision). E.g.,
rintf(12.3456789) was 12.125.
Avoid the same bug in rint(). It was only broken for the unusual
case when the i387 precision is 64 bits. FreeBSD defaults to 53
bit precision to avoid problems like this, but the standard math
emulator always uses 64 bit precision.
Remove trailing whitespace.1995-05-30T05:51:47ZRodney W. Grimesrgrimes@FreeBSD.org1995-05-30T05:51:47Zurn:sha1:6c06b4e2aa2a28d1f0bbd29ecdce35aaaf600ce8J.T. Conklin's latest version of the Sun math library.1994-08-19T09:40:01ZJordan K. Hubbardjkh@FreeBSD.org1994-08-19T09:40:01Zurn:sha1:3a8617a83f16ffc9db4f96e1f0f21af94078e6b1
-- Begin comments from J.T. Conklin:
The most significant improvement is the addition of "float" versions
of the math functions that take float arguments, return floats, and do
all operations in floating point. This doesn't help (performance)
much on the i386, but they are still nice to have.
The float versions were orginally done by Cygnus' Ian Taylor when
fdlibm was integrated into the libm we support for embedded systems.
I gave Ian a copy of my libm as a starting point since I had already
fixed a lot of bugs & problems in Sun's original code. After he was
done, I cleaned it up a bit and integrated the changes back into my
libm.
-- End comments
Reviewed by: jkh
Submitted by: jtc