Method getEncoder

c++/test/TestRleVectorDecoder.cc:125–133

  }

  std::unique_ptr<RleEncoder> RleV2BitUnpackAvx512Test::getEncoder(RleVersion version,
                                                                   MemoryOutputStream& memStream,
                                                                   bool isSigned) {
    MemoryPool* pool = getDefaultPool();

    return createRleEncoder(std::unique_ptr<BufferedOutputStream>(new BufferedOutputStream(
                                *pool, &memStream, 500 * 1024, 1024, nullptr)),
                            isSigned, version, *pool, alignBitpacking);
  }

  void RleV2BitUnpackAvx512Test::runTest(RleVersion version, uint64_t numValues, int64_t start,
                                         int64_t delta, bool random, bool isSigned,