| OS | Man Page | Section | Hits |
|---|---|---|---|
| php | ctype_digit | 3 | 860 |
| linux | isdigit | 3 | 612 |
| linux | iswdigit | 3 | 399 |
| freebsd | isxdigit | 3 | 391 |
| freebsd | isdigit | 3 | 383 |
| mojave | isdigit | 3 | 351 |
| osx | isdigit | 3 | 339 |
| posix | isdigit | 3p | 328 |
| mojave | isxdigit | 3 | 317 |
| osx | isxdigit | 3 | 315 |
| netbsd | isxdigit | 3 | 315 |
| plan9 | iswdigit | 3 | 314 |
| centos | iswdigit | 3 | 314 |
| linux | iswxdigit | 3 | 305 |
| osx | digittoint | 3 | 302 |
| netbsd | isdigit | 3 | 299 |
| php | iswdigit | 3 | 299 |
| freebsd | digittoint | 3 | 297 |
| posix | isxdigit | 3p | 294 |
| suse | djvudigital | 1 | 289 |
| debian | iswdigit | 3 | 284 |
| mojave | digittoint | 3 | 283 |
| x11r4 | iswxdigit | 3 | 283 |
| xfree86 | iswxdigit | 3 | 280 |
| sunos | isdigit | 3c | 279 |
| php | ctype_xdigit | 3 | 277 |
| suse | iswdigit | 3 | 277 |
| centos | iswxdigit | 3 | 271 |
| opensolaris | isdigit | 3c | 270 |
| redhat | iswxdigit | 3 | 270 |
| php | iswxdigit | 3 | 269 |
| debian | algorithm::checkdigits::mbase_001 | 3pm | 263 |
| plan9 | iswxdigit | 3 | 262 |
| opendarwin | iswdigit | 3 | 258 |
| linux | isxdigit | 3 | 258 |
| x11r4 | iswdigit | 3 | 257 |
| debian | iswxdigit | 3 | 250 |
| ultrix | iswdigit | 3 | 248 |
| debian | algorithm::checkdigits::m11_013 | 3pm | 247 |
| debian | prelude.isdigit | 3kaya | 246 |
| bsd | iswdigit | 3 | 245 |
| opendarwin | iswxdigit | 3 | 245 |
| suse | iswxdigit | 3 | 242 |
| v7 | iswdigit | 3 | 242 |
| redhat | iswdigit | 3 | 241 |
| posix | iswxdigit | 3p | 238 |
| xfree86 | iswdigit | 3 | 234 |
| minix | iswxdigit | 3 | 232 |
| v7 | iswxdigit | 3 | 231 |
| debian | algorithm::checkdigits::m10_008 | 3pm | 229 |