C

Updated: May 06, 2022
Function Classification Cancel ISR Signal Thread
c16rtomb() C11 No No Yes Yes
c32rtomb() C11 No No Yes Yes
cabs() C11 POSIX 1003.1 No Yes Yes Yes
cabsf() C11 POSIX 1003.1 No Yes Yes Yes
cabsl() C11 POSIX 1003.1 No Yes Yes Yes
cache_fini() QNX Neutrino Yes No Yes Yes
CACHE_FLUSH() QNX Neutrino No Yes Yes Yes
cache_init() QNX Neutrino Yes No Yes Yes
CACHE_INVAL() QNX Neutrino No Yes Yes Yes
cacos() C11 POSIX 1003.1 No Yes Yes Yes
cacosf() C11 POSIX 1003.1 No Yes Yes Yes
cacosl() C11 POSIX 1003.1 No Yes Yes Yes
cacosh() C11 POSIX 1003.1 No Yes Yes Yes
cacoshf() C11 POSIX 1003.1 No Yes Yes Yes
cacoshl() C11 POSIX 1003.1 No Yes Yes Yes
call_once() C11 No No Yes Yes
calloc() ANSI POSIX 1003.1 No No No Yes
carg() C11 POSIX 1003.1 No Yes Yes Yes
cargf() C11 POSIX 1003.1 No Yes Yes Yes
cargl() C11 POSIX 1003.1 No Yes Yes Yes
casin() C11 POSIX 1003.1 No Yes Yes Yes
casinf() C11 POSIX 1003.1 No Yes Yes Yes
casinl() C11 POSIX 1003.1 No Yes Yes Yes
casinh() C11 POSIX 1003.1 No Yes Yes Yes
casinhf() C11 POSIX 1003.1 No Yes Yes Yes
casinhl() C11 POSIX 1003.1 No Yes Yes Yes
catan() C11 POSIX 1003.1 No Yes Yes Yes
catanf() C11 POSIX 1003.1 No Yes Yes Yes
catanl() C11 POSIX 1003.1 No Yes Yes Yes
catanh() C11 POSIX 1003.1 No Yes Yes Yes
catanhf() C11 POSIX 1003.1 No Yes Yes Yes
catanhl() C11 POSIX 1003.1 No Yes Yes Yes
cbrt() C11 POSIX 1003.1 No Yes Yes Yes
cbrtf() C11 POSIX 1003.1 No Yes Yes Yes
cbrtl() C11 POSIX 1003.1 No Yes Yes Yes
ccos() C11 POSIX 1003.1 No Yes Yes Yes
ccosf() C11 POSIX 1003.1 No Yes Yes Yes
ccosl() C11 POSIX 1003.1 No Yes Yes Yes
ccosh() C11 POSIX 1003.1 No Yes Yes Yes
ccoshf() C11 POSIX 1003.1 No Yes Yes Yes
ccoshl() C11 POSIX 1003.1 No Yes Yes Yes
ceil() C11 POSIX 1003.1 No Yes Yes Yes
ceilf() C11 POSIX 1003.1 No Yes Yes Yes
ceill() C11 POSIX 1003.1 No Yes Yes Yes
cexp() C11 POSIX 1003.1 No Yes Yes Yes
cexpf() C11 POSIX 1003.1 No Yes Yes Yes
cexpl() C11 POSIX 1003.1 No Yes Yes Yes
cfgetispeed() POSIX 1003.1 No Yes Yes Yes
cfgetospeed() POSIX 1003.1 No Yes Yes Yes
cfgopen() QNX Neutrino Yes No Yes Yes
cfmakeraw() Unix No No Yes Yes
cfree() Unix No No No Yes
cfsetispeed() POSIX 1003.1 No Yes Yes Yes
cfsetospeed() POSIX 1003.1 No Yes Yes Yes
ChannelCreate() QNX Neutrino No No Yes Yes
ChannelCreate_r() QNX Neutrino No No Yes Yes
ChannelCreatePulsePool() QNX Neutrino No No Yes Yes
ChannelDestroy() QNX Neutrino No No Yes Yes
ChannelDestroy_r() QNX Neutrino No No Yes Yes
chdir() POSIX 1003.1 No No Yes Yes
chmod() POSIX 1003.1 No No Yes Yes
chown() POSIX 1003.1 No No Yes Yes
chroot() Legacy Unix No No No Yes
cimag() C11 POSIX 1003.1 No Yes Yes Yes
cimagf() C11 POSIX 1003.1 No Yes Yes Yes
cimagl() C11 POSIX 1003.1 No Yes Yes Yes
clearenv() QNX Neutrino No No No Yes
clearerr() ANSI POSIX 1003.1 No No No Yes
ClientInfoExtFree() QNX Neutrino No No Yes Yes
clock() ANSI POSIX 1003.1 No No Yes Yes
clock_getcpuclockid() POSIX 1003.1 CPT No No Yes Yes
clock_getres() POSIX 1003.1 No No Yes Yes
clock_gettime() POSIX 1003.1 No No Yes Yes
clock_nanosleep() POSIX 1003.1 Yes No Yes Yes
clock_settime() POSIX 1003.1 No No Yes Yes
ClockAdjust() QNX Neutrino No No Yes Yes
ClockAdjust_r() QNX Neutrino No No Yes Yes
ClockCycles() QNX Neutrino No Yes Yes Yes
ClockId() QNX Neutrino No No Yes Yes
ClockId_r() QNX Neutrino No No Yes Yes
ClockPeriod() QNX Neutrino No No Yes Yes
ClockPeriod_r() QNX Neutrino No No Yes Yes
ClockTime() QNX Neutrino No No Yes Yes
ClockTime_r() QNX Neutrino No No Yes Yes
clog() C11 POSIX 1003.1 No Yes Yes Yes
clogf() C11 POSIX 1003.1 No Yes Yes Yes
clogl() C11 POSIX 1003.1 No Yes Yes Yes
close() POSIX 1003.1 Yes No Yes Yes
closedir() POSIX 1003.1 Yes No No Yes
closelog() POSIX 1003.1 Yes No No Yes
_cmdname() QNX Neutrino No No No Yes
CMPLX() C11 No Yes Yes Yes
CMPLXF() C11 No Yes Yes Yes
CMPLXL() C11 No Yes Yes Yes
cnd_broadcast() C11 No No Yes Yes
cnd_destroy() C11 No No Yes Yes
cnd_init() C11 No No Yes Yes
cnd_signal() C11 No No Yes Yes
cnd_timedwait() C11 Yes No Yes Yes
cnd_wait() C11 Yes No Yes Yes
confstr() POSIX 1003.1 No No Yes Yes
conj() C11 POSIX 1003.1 No Yes Yes Yes
conjf() C11 POSIX 1003.1 No Yes Yes Yes
conjl() C11 POSIX 1003.1 No Yes Yes Yes
connect() POSIX 1003.1 Yes No No Yes
ConnectAttach() QNX Neutrino No No Yes Yes
ConnectAttach_r() QNX Neutrino No No Yes Yes
ConnectClientInfo() QNX Neutrino No No Yes Yes
ConnectClientInfo_r() QNX Neutrino No No Yes Yes
ConnectClientInfoAble() QNX Neutrino No No Yes Yes
ConnectClientInfoExt() QNX Neutrino No No Yes Yes
ConnectDetach() QNX Neutrino No No Yes Yes
ConnectDetach_r() QNX Neutrino No No Yes Yes
ConnectFlags() QNX Neutrino No No Yes Yes
ConnectFlags_r() QNX Neutrino No No Yes Yes
ConnectServerInfo() QNX Neutrino No No Yes Yes
ConnectServerInfo_r() QNX Neutrino No No Yes Yes
copysign() C11 POSIX 1003.1 No Yes Yes Yes
copysignf() C11 POSIX 1003.1 No Yes Yes Yes
copysignl() C11 POSIX 1003.1 No Yes Yes Yes
cos() C11 POSIX 1003.1 No Yes Yes Yes
cosf() C11 POSIX 1003.1 No Yes Yes Yes
cosl() C11 POSIX 1003.1 No Yes Yes Yes
cosh() C11 POSIX 1003.1 No Yes Yes Yes
coshf() C11 POSIX 1003.1 No Yes Yes Yes
coshl() C11 POSIX 1003.1 No Yes Yes Yes
cpow() C11 POSIX 1003.1 No Yes Yes Yes
cpowf() C11 POSIX 1003.1 No Yes Yes Yes
cpowl() C11 POSIX 1003.1 No Yes Yes Yes
cproj() C11 POSIX 1003.1 No Yes Yes Yes
cprojf() C11 POSIX 1003.1 No Yes Yes Yes
cprojl() C11 POSIX 1003.1 No Yes Yes Yes
creal() C11 POSIX 1003.1 No Yes Yes Yes
crealf() C11 POSIX 1003.1 No Yes Yes Yes
creall() C11 POSIX 1003.1 No Yes Yes Yes
creat() POSIX 1003.1 Yes No Yes Yes
creat64() Large-file support Yes No Yes Yes
crypt() POSIX 1003.1 XSI No No No No
csin() C11 POSIX 1003.1 No Yes Yes Yes
csinf() C11 POSIX 1003.1 No Yes Yes Yes
csinl() C11 POSIX 1003.1 No Yes Yes Yes
csinh() C11 POSIX 1003.1 No Yes Yes Yes
csinhf() C11 POSIX 1003.1 No Yes Yes Yes
csinhl() C11 POSIX 1003.1 No Yes Yes Yes
csqrt() C11 POSIX 1003.1 No Yes Yes Yes
csqrtf() C11 POSIX 1003.1 No Yes Yes Yes
csqrtl() C11 POSIX 1003.1 No Yes Yes Yes
ctan() C11 POSIX 1003.1 No Yes Yes Yes
ctanf() C11 POSIX 1003.1 No Yes Yes Yes
ctanl() C11 POSIX 1003.1 No Yes Yes Yes
ctanh() C11 POSIX 1003.1 No Yes Yes Yes
ctanhf() C11 POSIX 1003.1 No Yes Yes Yes
ctanhl() C11 POSIX 1003.1 No Yes Yes Yes
ctermid() POSIX 1003.1 No No No Read the Caveats
ctime() POSIX 1003.1 OB No No Yes No
ctime_r()   No No Yes Yes