What is GMP_NAIL_BITS?

[Torbjörn Granlund]

Andy <borucki.andrzej at gmail.com> writes:

  What means if GMP_NAIL_BITS>0?

Nails are an experimental thing which is not well maintained.

  Each limb has not 64 bits but 63 or 62 bits with reserved bits?
  GMP_NAIL_BITS>0 is faster or slower than case  GMP_NAIL_BITS==0?

It is faster on a few (now perhaps all obsolete) machines with nails.

-- 
Torbjörn
Please encrypt, key id 0xC8601622