Created header for low level I/O helpers. Fix for `::posix_fallocate` on Mac OSX#2354

Merged

taketwo merged 2 commits intoPointCloudLibrary:masterfrom rowanborder:pr_2341_mac_osx_fix

Jun 22, 2018

+254-157

Commits on Jun 18, 2018

Add header with low level I/O helpers.
de-vri-es
committed

Commits on Jun 22, 2018

Replacing ::posix_fallocate with io::raw_fallocate
rowanborder
committed