|
fabs()
|
ANSI
POSIX 1003.1
|
No |
No |
No |
Yes |
|
fabsf()
|
ANSI
POSIX 1003.1
|
No |
No |
No |
Yes |
|
fcfgopen()
|
QNX Neutrino
|
Yes |
No |
Yes |
Yes |
|
fchdir()
|
POSIX 1003.1
|
No |
No |
Yes |
Yes |
|
fchmod()
|
POSIX 1003.1
|
No |
No |
Yes |
Yes |
|
fchown()
|
POSIX 1003.1
|
No |
No |
Yes |
Yes |
|
fclose()
|
ANSI
POSIX 1003.1
|
Yes |
No |
No |
Yes |
|
fcloseall()
|
QNX 4
|
Yes |
No |
No |
Yes |
|
fcntl()
|
POSIX 1003.1
|
Read the Caveats
|
No |
Yes |
Yes |
|
fdatasync()
|
POSIX 1003.1 SIO
|
Yes |
No |
Yes |
Yes |
|
fdistrusted()
|
QNX Neutrino
|
No |
No |
Yes |
Yes |
|
fdopen()
|
POSIX 1003.1
|
No |
No |
No |
Yes |
|
feof()
|
ANSI
POSIX 1003.1
|
No |
No |
No |
Yes |
|
ferror()
|
ANSI
POSIX 1003.1
|
No |
No |
No |
Yes |
|
fflush()
|
ANSI
POSIX 1003.1
|
Yes |
No |
No |
Yes |
|
ffs()
|
POSIX 1003.1 XSI
|
No |
No |
Yes |
Yes |
|
fgetc()
|
ANSI
POSIX 1003.1
|
Yes |
No |
No |
Yes |
|
fgetchar()
|
QNX 4
|
Yes |
No |
No |
Yes |
|
fgetpos()
|
ANSI
POSIX 1003.1
|
Yes |
No |
No |
Yes |
|
fgets()
|
ANSI
POSIX 1003.1
|
Yes |
No |
No |
Yes |
|
fgetspent()
|
Unix
|
Yes |
No |
No |
No |
|
fgetwc()
|
ANSI
POSIX 1003.1
|
Yes |
No |
No |
Yes |
|
fgetws()
|
ANSI
POSIX 1003.1
|
Yes |
No |
No |
Yes |
|
fileno()
|
POSIX 1003.1
|
No |
No |
Yes |
Yes |
|
flink()
|
Unix
|
No |
No |
Yes |
Yes |
|
flock()
|
Unix
|
No |
No |
Yes |
Yes |
|
flockfile()
|
POSIX 1003.1
|
No |
No |
No |
Yes |
|
floor()
|
ANSI
POSIX 1003.1
|
No |
No |
No |
Yes |
|
floorf()
|
ANSI
POSIX 1003.1
|
No |
No |
No |
Yes |
|
flushall()
|
QNX 4
|
Yes |
No |
No |
Yes |
|
fmod()
|
ANSI
POSIX 1003.1
|
No |
No |
No |
Yes |
|
fmodf()
|
ANSI
POSIX 1003.1
|
No |
No |
No |
Yes |
|
fmodl()
|
ANSI
POSIX 1003.1
|
No |
No |
No |
Yes |
|
fnmatch()
|
POSIX 1003.1
|
No |
No |
Yes |
Yes |
|
fopen()
|
ANSI
POSIX 1003.1
|
Yes |
No |
No |
Yes |
|
fopen64()
|
Large-file support
|
Yes |
No |
No |
Yes |
|
fork()
|
POSIX 1003.1
|
No |
No |
Yes |
Read the Caveats |
|
forkpty()
|
Unix
|
Yes |
No |
Yes |
Yes |
|
fp_exception_mask()
|
QNX Neutrino
|
No |
No |
No |
Yes |
|
fp_exception_value()
|
QNX Neutrino
|
No |
No |
No |
Yes |
|
fp_precision()
|
QNX Neutrino
|
No |
No |
No |
Yes |
|
fp_rounding()
|
QNX Neutrino
|
No |
No |
No |
Yes |
|
forksafe_mutex_destroy()
|
QNX Neutrino
|
No |
No |
Yes |
Yes |
|
forksafe_mutex_init()
|
QNX Neutrino
|
No |
No |
Yes |
Yes |
|
forksafe_mutex_lock()
|
QNX Neutrino
|
No |
No |
No |
Yes |
|
forksafe_mutex_trylock()
|
QNX Neutrino
|
No |
No |
Yes |
Yes |
|
forksafe_mutex_unlock()
|
QNX Neutrino
|
No |
No |
No |
Yes |
|
fpathconf()
|
POSIX 1003.1
|
No |
No |
Yes |
Yes |
|
fprintf()
|
ANSI
POSIX 1003.1
|
Yes |
No |
No |
Yes |
|
fputc()
|
ANSI
POSIX 1003.1
|
Yes |
No |
No |
Yes |
|
fputchar()
|
QNX 4
|
Yes |
No |
No |
Yes |
|
fputs()
|
ANSI
POSIX 1003.1
|
Yes |
No |
No |
Yes |
|
fputwc()
|
ANSI
POSIX 1003.1
|
Yes |
No |
No |
Yes |
|
fputws()
|
ANSI
POSIX 1003.1
|
Yes |
No |
No |
Yes |
|
fread()
|
ANSI
POSIX 1003.1
|
Yes |
No |
No |
Yes |
|
free()
|
ANSI
POSIX 1003.1
|
No |
No |
No |
Yes |
|
freeaddrinfo()
|
POSIX 1003.1
|
No |
No |
No |
Yes |
|
freeifaddrs()
|
Unix
|
No |
No |
No |
Yes |
|
freopen()
|
ANSI
POSIX 1003.1
|
Yes |
No |
No |
Yes |
|
freopen64()
|
Large-file support
|
Yes |
No |
No |
Yes |
|
frexp()
|
ANSI
POSIX 1003.1
|
No |
No |
No |
Yes |
|
frexpf()
|
ANSI
POSIX 1003.1
|
No |
No |
No |
Yes |
|
fs_crypto_check()
|
QNX Neutrino
|
No |
No |
No |
Yes |
|
fs_crypto_domain_add()
|
QNX Neutrino
|
No |
No |
No |
Yes |
|
fs_crypto_domain_key_change()
|
QNX Neutrino
|
No |
No |
No |
Yes |
|
fs_crypto_domain_key_check()
|
QNX Neutrino
|
No |
No |
No |
Yes |
|
fs_crypto_domain_key_size()
|
QNX Neutrino
|
No |
No |
No |
Yes |
|
fs_crypto_domain_lock()
|
QNX Neutrino
|
No |
No |
No |
Yes |
|
fs_crypto_domain_query()
|
QNX Neutrino
|
No |
No |
No |
Yes |
|
fs_crypto_domain_remove()
|
QNX Neutrino
|
No |
No |
No |
Yes |
|
fs_crypto_domain_unlock()
|
QNX Neutrino
|
No |
No |
No |
Yes |
|
fs_crypto_enable()
|
QNX Neutrino
|
No |
No |
No |
Yes |
|
fs_crypto_enable_option()
|
QNX Neutrino
|
No |
No |
No |
Yes |
|
fs_crypto_file_get_domain()
|
QNX Neutrino
|
No |
No |
No |
Yes |
|
fs_crypto_file_set_domain()
|
QNX Neutrino
|
No |
No |
No |
Yes |
|
fs_crypto_key_gen()
|
QNX Neutrino
|
No |
No |
No |
Yes |
|
fs_crypto_migrate_control()
|
QNX Neutrino
|
No |
No |
No |
Yes |
|
fs_crypto_migrate_path()
|
QNX Neutrino
|
No |
No |
No |
Yes |
|
fs_crypto_migrate_status()
|
QNX Neutrino
|
No |
No |
No |
Yes |
|
fs_crypto_migrate_tag()
|
QNX Neutrino
|
No |
No |
No |
Yes |
|
fs_crypto_set_logging()
|
QNX Neutrino
|
No |
No |
No |
Yes |
|
fscanf()
|
ANSI
POSIX 1003.1
|
Yes |
No |
No |
Yes |
|
fseek()
|
ANSI
POSIX 1003.1
|
Yes |
No |
Yes |
Yes |
|
fseeko()
|
POSIX 1003.1
|
Yes |
No |
Yes |
Yes |
|
fseeko64()
|
Large-file support
|
Yes |
No |
Yes |
Yes |
|
fsetpos()
|
ANSI
POSIX 1003.1
|
Yes |
No |
Yes |
Yes |
|
fstat()
|
POSIX 1003.1
|
No |
No |
Yes |
Yes |
|
fstat64()
|
Large-file support
|
No |
No |
Yes |
Yes |
|
fstatvfs()
|
POSIX 1003.1
|
No |
No |
Yes |
Yes |
|
fstatvfs64()
|
Large-file support
|
No |
No |
Yes |
Yes |
|
fsync()
|
POSIX 1003.1 FSC
|
Yes |
No |
Yes |
Yes |
|
ftell()
|
ANSI
POSIX 1003.1
|
Yes |
No |
No |
Yes |
|
ftello()
|
POSIX 1003.1
|
Yes |
No |
No |
Yes |
|
ftello64()
|
Large-file support
|
Yes |
No |
No |
Yes |
|
ftime()
|
Standard Unix; removed from POSIX.1-2008
|
No |
No |
Yes |
Yes |
|
ftruncate()
|
POSIX 1003.1
|
No |
No |
Yes |
Yes |
|
ftruncate64()
|
Large-file support
|
No |
No |
Yes |
Yes |
|
ftrylockfile()
|
POSIX 1003.1
|
No |
No |
Yes |
Yes |
|
ftw()
|
POSIX 1003.1 OB XSI
|
Yes |
No |
Yes |
Yes |
|
ftw64()
|
Large-file support
|
Yes |
No |
Yes |
Yes |
|
funlockfile()
|
POSIX 1003.1
|
No |
No |
No |
Yes |
|
futime()
|
Unix
|
No |
No |
Yes |
Yes |
|
fwide()
|
ANSI
POSIX 1003.1
|
No |
No |
Yes |
Yes |
|
fwprintf()
|
ANSI
POSIX 1003.1
|
Yes |
No |
No |
Yes |
|
fwrite()
|
ANSI
POSIX 1003.1
|
Yes |
No |
No |
Yes |
|
fwscanf()
|
ANSI
POSIX 1003.1
|
Yes |
No |
No |
Yes |