Long double complex methods

[Joseph Myers]

On Wed, 28 Jun 2017, Joel Sherrill wrote:

> Also, although I don't know how to run them, doesn't someone
> run glibc tests on newlib? They likely have tests for this for
> newlib's purposes.

It would be interesting to see results of glibc libm tests (current git 
please, there have been major changes since the last release) for a range 
of libm implementations and operating systems, but also probably a lot of 
work to get them building with other C libraries; they make plenty of use 
of glibc features, include some internal glibc headers for configuration 
of some details of the architecture, and hardcode glibc choices of goals 
for errno, exceptions and accuracy that other libm implementations may 
differ on.  An implementation/architecture-specific libm-test-ulps file 
also needs to be generated before you can expect clean results even for an 
implementation following glibc's goals.

-- 
Joseph S. Myers
joseph@codesourcery.com