More references.

README.md

@@ -50,13 +50,32 @@ https://github.com/lemire/SIMDCompressionAndIntersection
 This other library (SIMDCompressionAndIntersection) also comes complete
 with new SIMD-based intersection algorithms.
 
+There is also a C library for differential coding (fast computation of
+deltas, and recovery from deltas): 
+
+https://github.com/lemire/FastDifferentialCoding
+
 # For a simple C library
 
 FastPFOR is a C++ research library. For something simpler,
 written in C, see:
 
 https://github.com/lemire/simdcomp
 
+or 
+
+https://github.com/lemire/streamvbyte
+
+or 
+
+https://github.com/lemire/LittleIntPacker
+
+or
+
+https://github.com/lemire/MaskedVByte
+
+Which library is best depends on your needs.
+
 ## Other recommended libraries
 
 * TurboPFor is a C library that offers lots of interesting optimizations. Well worth checking! (GPL license) https://github.com/powturbo/TurboPFor

example.cpp

@@ -80,4 +80,10 @@ int main() {
   Delta::deltaSIMD(mydata.data(), mydata.size());
   Delta::inverseDeltaSIMD(mydata.data(), mydata.size());
   // be mindful of CPU caching issues
+
+  // If you do use differential coding a lot, you might want 
+  // to check out these other libraries...
+  // https://github.com/lemire/FastDifferentialCoding
+  // and
+  // https://github.com/lemire/SIMDCompressionAndIntersection
 }