Re: questions on implementing long double

[Marco Atzeri <marco dot atzeri at gmail dot com>]

On 17/09/2014 18:13, Craig Howland wrote:
> On 09/17/2014 11:02 AM, Marco Atzeri wrote:
> > Hi,
> > I am currently looking on how to implement the missing long double math
> > functions; I am inclined to import the implementation from
> > FreeDSB as it seems the most completed while the Netbsd
> > lacks some functions.
> What is FreeBSD lacking?  ("most completed" implies that something is
> missing.) Would you please send a path to where they have it? (In a
> quick look via the FreeBSD source web interface, it was not at all
> obvious to me where the math library stuff is.)

looks on lib/msun
 generic one are in src.
Specific ones are the other directories

amd64  bsdsrc  ld128  mips     sparc64
arm    i387    ld80   powerpc  x86

On FreeBSD I have not yet fond a missing one, but I have not checked
all expected by POSIX.

NetBSD miss almost all the functions. Only
the rounding functions are implemented. For all the others
it is just

#define coshl _coshl
#define sinhl _sinhl
#define acosl _acosl
#define atanl _atanl

> > Assuming to merge the current and the FreeBSD, I think that
> > the implementation should be moved to files with a name scheme
> >
> > libm/math/sl_fabs.c
> >
> > Does make sense ?
> I think that the file names should reflect the function names, and not
> some legacy non-matching name that makes things more difficult to find
> (which is a current nuisance in the present files).  So, no, not
> sl_fabs.c, but fabsl.c.
> >

then I will just leave
s_fabsl.c

as found in FreeBSD

ls -1 src/*fabs*c
src/s_fabs.c
src/s_fabsf.c
src/s_fabsl.c

Marco