| Function | Classification | Cancel | ISR | Signal | Thread |
|---|---|---|---|---|---|
| j0() | POSIX 1003.1 XSI | No | No | No | Yes |
| j0f() | Unix | No | No | No | Yes |
| j1() | POSIX 1003.1 XSI | No | No | No | Yes |
| j1f() | Unix | No | No | No | Yes |
| jn() | POSIX 1003.1 XSI | No | No | No | Yes |
| jnf() | Unix | No | No | No | Yes |
| jrand48() | POSIX 1003.1 XSI | No | No | No | Yes |