F
Function
Classification
Cancel
ISR
Signal
Thread
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 XSI
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 TSF
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
Yes
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
fp_setenv()
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
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 XSI
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()
POSIX 1003.1 XSI
No
No
Yes
Yes
ftruncate()
POSIX 1003.1
No
No
Yes
Yes
ftruncate64()
Large-file support
No
No
Yes
Yes
ftrylockfile()
POSIX 1003.1 TSF
No
No
Yes
Yes
ftw()
POSIX 1003.1 XSI
Yes
No
Yes
Yes
ftw64()
Large-file support
Yes
No
Yes
Yes
funlockfile()
POSIX 1003.1 TSF
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
Parent topic:
Full Safety Information