questions on implementing long double

Marco Atzeri
Wed Sep 17 18:14:00 GMT 2014

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

as found in FreeBSD

ls -1 src/*fabs*c


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