* bignum.c (bary_pack): Specialized packers implemented.
  (HOST_BIGENDIAN_P): New macro.
  (ALIGNOF): New macro.
  (CLEAR_LOWBITS): New macro.
  (FILL_LOWBITS): New macro.
  (swap_bdigit): New macro.
  (bary_2comp): Returns an int.

* internal.h (swap16): Moved from pack.c
  (swap32): Ditto.
  (swap64): Ditto.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41544 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2013-06-22

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41545 b2dd03c8-39d4-4d8f-98ff-823fe69b080e