| 359 | } |
| 360 | |
| 361 | bool IsMissingValue(const TStringBuf& s) { |
| 362 | switch (s.length()) { |
| 363 | case 0: |
| 364 | return true; |
| 365 | case 1: |
| 366 | return s[0] == '-'; |
| 367 | case 2: |
| 368 | return (ToLower(s[0]) == 'n') && ( |
| 369 | s == "NA"sv || |
| 370 | s == "Na"sv || |
| 371 | s == "na"sv || |
| 372 | false); |
| 373 | case 3: |
| 374 | return (ToLower(s[0]) == 'n' || ToLower(s[1]) == 'n') && ( |
| 375 | s == "nan"sv || |
| 376 | s == "NaN"sv || |
| 377 | s == "NAN"sv || |
| 378 | s == "#NA"sv || |
| 379 | s == "N/A"sv || |
| 380 | s == "n/a"sv || |
| 381 | false); |
| 382 | case 4: |
| 383 | return (ToLower(s[0]) == 'n' || ToLower(s[1]) == 'n') && ( |
| 384 | s == "#N/A"sv || |
| 385 | s == "-NaN"sv || |
| 386 | s == "-nan"sv || |
| 387 | s == "NULL"sv || |
| 388 | s == "null"sv || |
| 389 | s == "Null"sv || |
| 390 | s == "none"sv || |
| 391 | s == "None"sv || |
| 392 | false); |
| 393 | default: |
| 394 | return |
| 395 | s == "#N/A N/A"sv || |
| 396 | s == "-1.#IND"sv || |
| 397 | s == "-1.#QNAN"sv || |
| 398 | s == "1.#IND"sv || |
| 399 | s == "1.#QNAN"sv || |
| 400 | false; |
| 401 | } |
| 402 | } |
| 403 | |
| 404 | namespace { |
| 405 | struct TStupidStringHash { |
no test coverage detected