| OS | Man Page | Section | Hits |
|---|---|---|---|
| php | ctype_digit | 3 | 996 |
| linux | isdigit | 3 | 698 |
| freebsd | isxdigit | 3 | 490 |
| linux | iswdigit | 3 | 484 |
| freebsd | isdigit | 3 | 466 |
| posix | isdigit | 3p | 465 |
| osx | isdigit | 3 | 438 |
| mojave | isdigit | 3 | 433 |
| osx | isxdigit | 3 | 410 |
| mojave | isxdigit | 3 | 403 |
| posix | isxdigit | 3p | 399 |
| netbsd | isxdigit | 3 | 399 |
| osx | digittoint | 3 | 396 |
| freebsd | digittoint | 3 | 396 |
| plan9 | iswdigit | 3 | 396 |
| centos | iswdigit | 3 | 391 |
| linux | iswxdigit | 3 | 390 |
| opensolaris | isdigit | 3c | 385 |
| php | iswdigit | 3 | 379 |
| mojave | digittoint | 3 | 379 |
| netbsd | isdigit | 3 | 379 |
| x11r4 | iswxdigit | 3 | 378 |
| suse | djvudigital | 1 | 375 |
| redhat | iswxdigit | 3 | 374 |
| suse | iswdigit | 3 | 370 |
| debian | iswdigit | 3 | 364 |
| php | ctype_xdigit | 3 | 360 |
| sunos | isdigit | 3c | 357 |
| centos | iswxdigit | 3 | 357 |
| xfree86 | iswxdigit | 3 | 351 |
| php | iswxdigit | 3 | 346 |
| plan9 | iswxdigit | 3 | 342 |
| linux | isxdigit | 3 | 342 |
| opendarwin | iswdigit | 3 | 338 |
| bsd | iswdigit | 3 | 338 |
| v7 | iswdigit | 3 | 336 |
| redhat | iswdigit | 3 | 331 |
| ultrix | iswdigit | 3 | 327 |
| x11r4 | iswdigit | 3 | 325 |
| debian | algorithm::checkdigits::mbase_001 | 3pm | 325 |
| suse | iswxdigit | 3 | 320 |
| minix | iswdigit | 3 | 312 |
| debian | prelude.isdigit | 3kaya | 311 |
| debian | iswxdigit | 3 | 310 |
| v7 | iswxdigit | 3 | 310 |
| centos | isdigit | 3p | 309 |
| bsd | iswxdigit | 3 | 305 |
| posix | iswxdigit | 3p | 305 |
| debian | algorithm::checkdigits::m11_013 | 3pm | 304 |
| xfree86 | iswdigit | 3 | 304 |