* Speed up buffer.swap16 and swap32 by using builtins. Up to ~6x gain.
Drop transition point between JS and C++ implementations accordingly.
Amount of performance improvement not only depends on buffer size but
also memory alignment.
* Fix tests: C++ impl tests were testing 0-filled buffers so were
always passing.
* Add similar buffer.swap64 method.
* Make buffer-swap benchmark mirror JS impl.
doc/api/buffer.markdown has an entry of "added: REPLACEME" that should
be changed to the correct release number before tagged.
Because node is currently using a very old version of cpplint.py it
doesn't know that std::swap() has moved from <algorithm> to <utility> in
c++11. So until cpplint.py is updated simply NOLINT the line.
Technically it should be NOLINT(build/include_what_you_use), but that
puts the line over 80 characters causing another lint error.
PR-URL: https://github.com/nodejs/node/pull/7157
Reviewed-By: Trevor Norris <trev.norris@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Backport-URL: https://github.com/nodejs/node/pull/7546
4014ecbfb4