Commits
Wes McKinney authored and Korn, Uwe committed 3960db91591
ARROW-2668: [C++] Suppress -Wnull-pointer-arithmetic when compiling plasma/malloc.cc on clang This generates a warning on clang-6 when using CHECKIN error level, so compiling with `-Werror` will fail without it. Author: Wes McKinney <wes.mckinney@twosigma.com> Closes #2099 from wesm/ARROW-2668 and squashes the following commits: 13d7670d <Wes McKinney> Suppress -Wnull-pointer-arithmetic when compiling plasma/malloc.cc on clang