| OS | Man Page | Section | Hits |
|---|---|---|---|
| php | ctype_digit | 3 | 1,274 |
| linux | isdigit | 3 | 865 |
| freebsd | isxdigit | 3 | 714 |
| freebsd | isdigit | 3 | 707 |
| linux | iswdigit | 3 | 706 |
| posix | isdigit | 3p | 628 |
| mojave | isdigit | 3 | 627 |
| osx | isdigit | 3 | 622 |
| osx | isxdigit | 3 | 620 |
| osx | digittoint | 3 | 615 |
| mojave | isxdigit | 3 | 597 |
| mojave | digittoint | 3 | 586 |
| netbsd | isxdigit | 3 | 575 |
| plan9 | iswdigit | 3 | 570 |
| freebsd | digittoint | 3 | 564 |
| netbsd | isdigit | 3 | 556 |
| centos | iswdigit | 3 | 554 |
| x11r4 | iswxdigit | 3 | 543 |
| php | iswdigit | 3 | 542 |
| suse | iswdigit | 3 | 540 |
| linux | iswxdigit | 3 | 540 |
| posix | isxdigit | 3p | 535 |
| redhat | iswxdigit | 3 | 532 |
| centos | iswxdigit | 3 | 526 |
| plan9 | iswxdigit | 3 | 523 |
| debian | iswdigit | 3 | 522 |
| v7 | iswdigit | 3 | 520 |
| xfree86 | iswxdigit | 3 | 517 |
| sunos | isdigit | 3c | 515 |
| opensolaris | isdigit | 3c | 506 |
| php | iswxdigit | 3 | 504 |
| suse | djvudigital | 1 | 504 |
| php | ctype_xdigit | 3 | 499 |
| freebsd | iswxdigit | 3 | 483 |
| suse | iswxdigit | 3 | 482 |
| x11r4 | iswdigit | 3 | 478 |
| redhat | iswdigit | 3 | 471 |
| opendarwin | iswdigit | 3 | 470 |
| bsd | isdigit | 3 | 469 |
| bsd | iswdigit | 3 | 469 |
| debian | prelude.isdigit | 3kaya | 468 |
| minix | iswdigit | 3 | 467 |
| xfree86 | iswdigit | 3 | 464 |
| linux | isxdigit | 3 | 458 |
| opendarwin | iswxdigit | 3 | 458 |
| debian | algorithm::checkdigits::m09_001 | 3pm | 456 |
| debian | algorithm::checkdigits::mbase_001 | 3pm | 448 |
| debian | iswxdigit | 3 | 447 |
| debian | algorithm::checkdigits::m10_008 | 3pm | 443 |
| ultrix | iswdigit | 3 | 442 |