Full Safety Information Parent topic: Full Safety Information

F

Updated: April 19, 2023
Function Classification Cancel ISR Signal Thread
fabs() C11 POSIX 1003.1 No Yes Yes Yes
fabsf() C11 POSIX 1003.1 No Yes Yes Yes
fabsl() C11 POSIX 1003.1 No Yes Yes Yes
faccessat() POSIX 2008 No No Yes Yes
fcfgopen() QNX Neutrino Yes No Yes Yes
fchdir() POSIX 1003.1 No No Yes Yes
fchecktrust() QNX Neutrino No No Yes Yes
fchmod() POSIX 1003.1 No No Yes Yes
fchmodat() POSIX 2008 No No Yes Yes
fchown() POSIX 1003.1 No No Yes Yes
fchownat() POSIX 2008 No No Yes Yes
fclose() ANSI POSIX 1003.1 Yes No No Yes
fcloseall() QNX Neutrino Yes No No Yes
fcntl() POSIX 1003.1 Read the Caveats No Yes Yes
fdatasync() POSIX 1003.1 SIO Yes No Yes Yes
fdim() C11 POSIX 1003.1 No Yes Yes Yes
fdimf() C11 POSIX 1003.1 No Yes Yes Yes
fdiml() C11 POSIX 1003.1 No Yes Yes Yes
fdistrusted() QNX Neutrino No No Yes Yes
fdopen() POSIX 1003.1 No No No Yes
fdopendir() POSIX 1003.1 No No Yes Yes
feclearexcept() C99 POSIX 1003.1 No Yes Yes Yes
fedisableexcept() BSD QNX Neutrino No Yes Yes Yes
feenableexcept() BSD QNX Neutrino No Yes Yes Yes
fegetenv() C99 POSIX 1003.1 No Yes Yes Yes
fegetexceptflag() C99 POSIX 1003.1 No Yes Yes Yes
fegetprec() QNX Neutrino No Yes Yes Yes
fegetround() C99 POSIX 1003.1 No Yes Yes Yes
feholdexcept() C99 POSIX 1003.1 No Yes Yes Yes
feof() ANSI POSIX 1003.1 No No No Yes
feraiseexcept() C99 POSIX 1003.1 No Yes Yes Yes
ferror() ANSI POSIX 1003.1 No No No Yes
fesetenv() C99 POSIX 1003.1 No Yes Yes Yes
fesetexceptflag() C99 POSIX 1003.1 No Yes Yes Yes
fesetprec() QNX Neutrino No Yes Yes Yes
fesetround() C99 POSIX 1003.1 No Yes Yes Yes
fetestexcept() C99 POSIX 1003.1 No Yes Yes Yes
feupdateenv() C99 POSIX 1003.1 No Yes Yes Yes
fflush() ANSI POSIX 1003.1 Yes No No Yes
ffs() POSIX 1003.1 XSI No No Yes Yes
ffsl()   No No Yes Yes
ffsll() Unix No No Yes Yes
fgetc() ANSI POSIX 1003.1 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() C11 POSIX 1003.1 No Yes Yes Yes
floorf() C11 POSIX 1003.1 No Yes Yes Yes
floorl() C11 POSIX 1003.1 No Yes Yes Yes
fls() Unix No No Yes Yes
flsl() Unix No No Yes Yes
flsll() Unix No No Yes Yes
fma() C11 POSIX 1003.1 No Yes Yes Yes
fmaf() C11 POSIX 1003.1 No Yes Yes Yes
fmal() C11 POSIX 1003.1 No Yes Yes Yes
fmax() C11 POSIX 1003.1 No Yes Yes Yes
fmaxf() C11 POSIX 1003.1 No Yes Yes Yes
fmaxl() C11 POSIX 1003.1 No Yes Yes Yes
fmin() C11 POSIX 1003.1 No Yes Yes Yes
fminf() C11 POSIX 1003.1 No Yes Yes Yes
fminl() C11 POSIX 1003.1 No Yes Yes Yes
fmod() C11 POSIX 1003.1 No Yes Yes Yes
fmodf() C11 POSIX 1003.1 No Yes Yes Yes
fmodl() C11 POSIX 1003.1 No Yes Yes Yes
fnmatch() POSIX 1003.1 No No Yes Yes
_fnmatchv() QNX Neutrino 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
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
fpclassify() C11 POSIX 1003.1 No Yes Yes Yes
fprintf() ANSI POSIX 1003.1 Yes No No Yes
fputc() ANSI POSIX 1003.1 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() C11 POSIX 1003.1 No Yes Yes Yes
frexpf() C11 POSIX 1003.1 No Yes Yes Yes
frexpl() C11 POSIX 1003.1 No Yes Yes Yes
fs_crypto_check() QNX Neutrino Yes No No Yes
fs_crypto_domain_add() QNX Neutrino Yes No No Yes
fs_crypto_domain_add_flags() QNX Neutrino Yes No No Yes
fs_crypto_domain_hard_lock() QNX Neutrino Yes No No Yes
fs_crypto_domain_key_change() QNX Neutrino Yes No No Yes
fs_crypto_domain_key_check() QNX Neutrino Yes No No Yes
fs_crypto_domain_key_size() QNX Neutrino No No No Yes
fs_crypto_domain_lock() QNX Neutrino Yes No No Yes
fs_crypto_domain_query() QNX Neutrino Yes No No Yes
fs_crypto_domain_remove() QNX Neutrino Yes No No Yes
fs_crypto_domain_unlock() QNX Neutrino Yes No No Yes
fs_crypto_domain_whitelist_configure() QNX Neutrino Yes No No Yes
fs_crypto_domain_whitelist_ctrl() QNX Neutrino Yes No No Yes
fs_crypto_domain_whitelist_ctrl_access_grant() QNX Neutrino Yes No No Yes
fs_crypto_domain_whitelist_ctrl_access_revoke() QNX Neutrino Yes No No Yes
fs_crypto_domain_whitelist_get_flags() QNX Neutrino Yes No No Yes
fs_crypto_domain_whitelist_set_flags() QNX Neutrino Yes No No Yes
fs_crypto_enable() QNX Neutrino Yes No No Yes
fs_crypto_enable_option() QNX Neutrino Yes No No Yes
fs_crypto_file_get_domain() QNX Neutrino Yes No No Yes
fs_crypto_file_set_domain() QNX Neutrino Yes No No Yes
fs_crypto_key_gen() QNX Neutrino Yes No No Yes
fs_crypto_migrate_control() QNX Neutrino Yes No No Yes
fs_crypto_migrate_path() QNX Neutrino Yes No No Yes
fs_crypto_migrate_status() QNX Neutrino Yes No No Yes
fs_crypto_migrate_tag() QNX Neutrino Yes No No Yes
fs_crypto_set_logging() QNX Neutrino Yes 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
fstatat() POSIX 1003.1 No No Yes Yes
fstatat64() 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
futimens() POSIX 1003.1 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
Parent topic: Full Safety Information