users-guide: Document FFI safety guarantees
authorBen Gamari <bgamari.foss@gmail.com>
Thu, 29 Jun 2017 23:36:51 +0000 (19:36 -0400)
committerBen Gamari <ben@smart-cactus.org>
Thu, 29 Jun 2017 23:36:52 +0000 (19:36 -0400)
commit7de2c07d61d8ff952164ee8e6948c1415514ee6d
tree7b41f637a0391da64f6bac95870ea8d63e3f763a
parentc3f12ec5edba697cfba199a360c7962bfc9f7e80
users-guide: Document FFI safety guarantees

Test Plan: Read it

Reviewers: austin

Subscribers: simonmar, rwbarton, thomie

GHC Trac Issues: #13730, #8281

Differential Revision: https://phabricator.haskell.org/D3682
docs/users_guide/ffi-chap.rst