Function GetSqlWCharSize

cpp/src/arrow/flight/sql/odbc/odbc_impl/encoding.h:39–45

void ComputeSqlWCharSize();

inline size_t GetSqlWCharSize() {
  if (SqlWCharSize == 0) {
    ComputeSqlWCharSize();
  }

  return SqlWCharSize;
}
#else
constexpr inline size_t GetSqlWCharSize() { return sizeof(char16_t); }
#endif