This is a resubmission.
On travis-ci (ubuntu 12.04 and osx) R 3.3.2 R 3.3.3 * R-release
On r-hub builder: Debian Linux, R-release, GCC Debian Linux, R-devel, GCC ASAN/UBSAN Ubuntu Linux 16.04 LTS, R-release, GCC Windows Server 2008 R2 SP1, R-release, 32/64 bit
There were no ERRORs or WARNINGs or NOTEs on the tested platforms.
There are no dependencies.
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