Function IsUsingIODBC

cpp/src/arrow/flight/sql/odbc/odbc_impl/encoding.cc:34–41

std::mutex SqlWCharSizeMutex;

bool IsUsingIODBC() {
  // Detects iODBC by looking up by symbol iodbc_version
  void* handle = dlsym(RTLD_DEFAULT, "iodbc_version");
  bool using_iodbc = handle != nullptr;
  dlclose(handle);

  return using_iodbc;
}
}  // namespace

void ComputeSqlWCharSize() {