fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph

cngzhnp 64324e329e Support pragma once in all header files and cleanup some warnings (#4339 An error occurred ) ... Summary: As you know, almost all compilers support "pragma once" keyword instead of using include guards. To be keep consistency between header files, all header files are edited. Besides this, try to fix some warnings about loss of data. Pull Request resolved: https://github.com/facebook/rocksdb/pull/4339 Differential Revision: D9654990 Pulled By: ajkr fbshipit-source-id: c2cf3d2d03a599847684bed81378c401920ca848		7 years ago
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rocksdb	Support pragma once in all header files and cleanup some warnings (#4339 An error occurred )	7 years ago