Function doubleEquals

c++/test/TestDictionaryEncoding.cc:38–41

  const double FALLBACK_THRESHOLD = 0.0;  // make sure fallback happens

  static bool doubleEquals(double a, double b) {
    const double EPSILON = 1e-9;
    return std::fabs(a - b) < EPSILON;
  }

  static std::unique_ptr<Reader> createReader(MemoryPool* memoryPool,
                                              std::unique_ptr<InputStream> stream) {