> > 
> > So 0x7fffffff is fine...
> 
> Duh, you are right.

No, I'm wrong...

For some reason best known to itself, gcc calls _Qp_dtoq then _Qp_qtoui
when converting double to unsigned int (ie it converts the value
to a 128bit float first!).

_Qp_qtoui (quad to unsigned) is implemented in
    src/lib/libc/arch/sparc64/softfloat/qp.c
as
    return (unsigned int)float128_to_int32(*a);
which is just plain wrong...

In particular an unsigned version of roundAndPackInt32 (and Int64)
is needed.

	David

-- 
David Laight: david@l8s.co.uk