Function | Classification | Cancel | ISR | Signal | Thread |
---|---|---|---|---|---|
ualarm() | POSIX 1003.1 XSI | No | No | Yes | Yes |
ultoa() | QNX 4 | No | Yes | Yes | Yes |
ulltoa() | Unix | No | Yes | Yes | Yes |
umask() | POSIX 1003.1 | No | No | Yes | Yes |
umount() | QNX Neutrino | Yes | No | No | Yes |
UNALIGNED_PUT16() | QNX Neutrino | No | Yes | Yes | Yes |
UNALIGNED_PUT32() | QNX Neutrino | No | Yes | Yes | Yes |
UNALIGNED_PUT64() | QNX Neutrino | No | Yes | Yes | Yes |
UNALIGNED_RET16() | QNX Neutrino | No | Yes | Yes | Yes |
UNALIGNED_RET32() | QNX Neutrino | No | Yes | Yes | Yes |
UNALIGNED_RET64() | QNX Neutrino | No | Yes | Yes | Yes |
uname() | POSIX 1003.1 | No | No | Yes | Yes |
ungetc() | ANSI POSIX 1003.1 | Yes | No | No | Yes |
ungetwc() | ANSI POSIX 1003.1 | Yes | No | No | Yes |
unlink() | POSIX 1003.1 | Yes | No | Yes | Yes |
unlockpt() | POSIX 1003.1 XSI | No | No | Yes | Yes |
unsetenv() | POSIX 1003.1 | No | No | Yes | Yes |
usleep() | POSIX 1003.1 XSI | Yes | No | Yes | Yes |
utime() | POSIX 1003.1 | No | No | Yes | Yes |
utimes() | POSIX 1003.1 XSI | No | No | Yes | Yes |
utmpname() | Unix | Yes | No | Yes | Yes |
utoa() | QNX 4 | No | Yes | Yes | Yes |