Function isLowSurrogate

lib/cpp/src/thrift/protocol/TJSONProtocol.cpp:299–301

Return true if the code unit is low surrogate

// Return true if the code unit is low surrogate
static bool isLowSurrogate(uint16_t val) {
  return val >= 0xDC00 && val <= 0xDFFF;
}

/**
 * Class to serve as base JSON context and as base class for other context