| OS | Man Page | Section | Hits |
|---|---|---|---|
| centos | pthread_once | 3p | 379 |
| freebsd | pthread_once | 3 | 365 |
| debian | pthread_once | 3 | 321 |
| opensolaris | pthread_once | 3c | 318 |
| netbsd | pthread_once | 3 | 311 |
| osx | pthread_once | 3 | 310 |
| mojave | pthread_once | 3 | 291 |
| linux | pthread_once | 3 | 279 |
| suse | pthread_once | 3p | 259 |
| hpux | pthread_once | 3t | 247 |
| posix | pthread_once | 3p | 240 |
| sunos | pthread_once | 3c | 233 |
| linux | pthread_once | 3posix | 232 |
| osf1 | pthread_once | 3 | 224 |
| redhat | pthread_once | 3 | 161 |