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

liuhuahang ef5b384729 fix a few compile warnings ... 1, const qualifiers on return types make no sense and will trigger a compile warning: warning: type qualifiers ignored on function return type [-Wignored-qualifiers] 2, class HistogramImpl has virtual functions and thus should have a virtual destructor 3, with some toolchain, the macro __STDC_FORMAT_MACROS is predefined and thus should be checked before define Change-Id: I69747a03bfae88671bfbb2637c80d17600159c99 Signed-off-by: liuhuahang <liuhuahang@zerus.co>		11 years ago
..
spatial_db.cc	fix a few compile warnings	11 years ago
spatial_db_test.cc	Optimize SpatialDB	11 years ago
utils.h	SpatialDB change API	11 years ago