Symbol Index
This page tries to list all the symbols that are available from the Standard Library. The symbols are written as follows:
 Function and functionlike macro names with ().
 Typegeneric macro and generic function names marked with (generic).
Contents 
[edit] _ A B C D E F G H I J K L M N O P Q R S T U V W X
[edit] (underscore)
__alignas_is_defined (since C11)
__alignof_is_defined (since C11)
__bool_true_false_are_defined (since C99)
_Complex_I (since C99)
_Exit() (since C99)
_Imaginary_I (since C99)
_IOFBF
_IOLBF
_IONBF
[edit] A
abort_handler_s() (since C11)
abs()
acos()
acos() (generic) (since C99)
acosf() (since C99)
acosh() (since C99)
acosh() (generic) (since C99)
acoshf() (since C99)
acoshl() (since C99)
acosl() (since C99)
alignas (keyword macro) (since C11)
aligned_alloc() (since C11)
alignof (keyword macro) (since C11)
and (operator macro) (since C95)
and_eq (operator macro) (since C95)
asctime()
asctime_s() (since C11)
asin()
asin() (generic) (since C99)
asinf() (since C99)
asinh() (since C99)
asinh() (generic) (since C99)
asinhf() (since C99)
asinhl() (since C99)
asinl() (since C99)
assert()
at_quick_exit() (since C11)
atan()
atan() (generic) (since C99)
atan2()
atan2() (generic) (since C99)
atan2f() (since C99)
atan2l() (since C99)
atanf() (since C99)
atanh() (since C99)
atanh() (generic) (since C99)
atanhf() (since C99)
atanhl() (since C99)
atanl() (since C99)
atexit()
atof()
atoi()
atol()
atoll() (since C99)
ATOMIC_TYPE_LOCK_FREE


ATOMIC_BOOL_LOCK_FREE (since C11) 
atomic_compare_exchange_strong() (generic) (since C11)
atomic_compare_exchange_strong_explicit() (generic) (since C11)
atomic_compare_exchange_weak() (generic) (since C11)
atomic_compare_exchange_weak_explicit() (generic) (since C11)
atomic_exchange() (generic) (since C11)
atomic_exchange_explicit() (generic) (since C11)
atomic_fetch_add() (generic) (since C11)
atomic_fetch_add_explicit() (generic) (since C11)
atomic_fetch_and() (generic) (since C11)
atomic_fetch_and_explicit() (generic) (since C11)
atomic_fetch_or() (generic) (since C11)
atomic_fetch_or_explicit() (generic) (since C11)
atomic_fetch_sub() (generic) (since C11)
atomic_fetch_sub_explicit() (generic) (since C11)
atomic_fetch_xor() (generic) (since C11)
atomic_fetch_xor_explicit() (generic) (since C11)
atomic_flag (since C11)
atomic_flag_clear() (since C11)
atomic_flag_clear_explicit() (since C11)
ATOMIC_FLAG_INIT (since C11)
atomic_flag_test_and_set() (since C11)
atomic_flag_test_and_set_explicit() (since C11)
atomic_init() (generic) (since C11)
atomic_is_lock_free() (generic) (since C11)
atomic_load() (generic) (since C11)
atomic_load_explicit() (generic) (since C11)
atomic_signal_fence() (since C11)
atomic_store() (generic) (since C11)
atomic_store_explicit() (generic) (since C11)
atomic_thread_fence() (since C11)
ATOMIC_VAR_INIT() (since C11) (deprecated in C17)
[edit] B
bitand (operator macro) (since C95)
bitor (operator macro) (since C95)
bool (keyword macro) (since C99)
bsearch()
bsearch_s() (since C11)
btowc() (since C95)
BUFSIZ
[edit] C
c16rtomb() (since C11)
c32rtomb() (since C11)
cabs() (since C99)
cabsf() (since C99)
cabsl() (since C99)
cacos() (since C99)
cacosf() (since C99)
cacosh() (since C99)
cacoshf() (since C99)
cacoshl() (since C99)
cacosl() (since C99)
call_once() (since C11)
calloc()
carg() (since C99)
carg() (generic) (since C99)
cargf() (since C99)
cargl() (since C99)
casin() (since C99)
casinf() (since C99)
casinh() (since C99)
casinhf() (since C99)
casinhl() (since C99)
casinl() (since C99)
catan() (since C99)
catanf() (since C99)
catanh() (since C99)
catanhf() (since C99)
catanhl() (since C99)
catanl() (since C99)
cbrt() (since C99)
cbrt() (generic) (since C99)
cbrtf() (since C99)
cbrtl() (since C99)
ccos() (since C99)
ccosf() (since C99)
ccosh() (since C99)
ccoshf() (since C99)
ccoshl() (since C99)
ccosl() (since C99)
ceil()
ceil() (generic) (since C99)
ceilf() (since C99)
ceill() (since C99)
cexp() (since C99)
cexpf() (since C99)
cexpl() (since C99)
CHAR_BIT
CHAR_MAX
CHAR_MIN
char16_t (since C11)
char32_t (since C11)
cimag() (since C99)
cimag() (generic) (since C99)
cimagf() (since C99)
cimagl() (since C99)
clearerr()
clock()
clock_t
CLOCKS_PER_SEC
clog() (since C99)
clogf() (since C99)
clogl() (since C99)
CMPLX() (since C11)
CMPLXF() (since C11)
CMPLXL() (since C11)
cnd_broadcast() (since C11)
cnd_destroy() (since C11)
cnd_init() (since C11)
cnd_signal() (since C11)
cnd_t (since C11)
cnd_timedwait() (since C11)
cnd_wait() (since C11)
compl (operator macro) (since C95)
complex (keyword macro) (since C99)
conj() (since C99)
conj() (generic) (since C99)
conjf() (since C99)
conjl() (since C99)
constraint_handler_t (since C11)
copysign() (since C99)
copysign() (generic) (since C99)
copysignf() (since C99)
copysignl() (since C99)
cos()
cos() (generic) (since C99)
cosf() (since C99)
cosh()
cosh() (generic) (since C99)
coshf() (since C99)
coshl() (since C99)
cosl() (since C99)
cpow() (since C99)
cpowf() (since C99)
cpowl() (since C99)
cproj() (since C99)
cproj() (generic) (since C99)
cprojf() (since C99)
cprojl() (since C99)
creal() (since C99)
creal() (generic) (since C99)
crealf() (since C99)
creall() (since C99)
csin() (since C99)
csinf() (since C99)
csinh() (since C99)
csinhf() (since C99)
csinhl() (since C99)
csinl() (since C99)
csqrt() (since C99)
csqrtf() (since C99)
csqrtl() (since C99)
ctan() (since C99)
ctanf() (since C99)
ctanh() (since C99)
ctanhf() (since C99)
ctanhl() (since C99)
ctanl() (since C99)
ctime()
ctime_s() (since C11)
[edit] D
DBL_DECIMAL_DIG (since C11)
DBL_DIG
DBL_EPSILON
DBL_HAS_SUBNORM (since C11)
DBL_MANT_DIG
DBL_MAX
DBL_MAX_10_EXP
DBL_MAX_EXP
DBL_MIN
DBL_MIN_10_EXP
DBL_MIN_EXP
DBL_TRUE_MIN (since C11)
DECIMAL_DIG (since C99)
difftime()
div()
div_t
double_t (since C99)
[edit] E
EDOM
EILSEQ (since C95)
EOF
ERANGE
erf() (since C99)
erf() (generic) (since C99)
erfc() (since C99)
erfc() (generic) (since C99)
erfcf() (since C99)
erfcl() (since C99)
erff() (since C99)
erfl() (since C99)
errno (macro variable)
errno_t (since C11)
exit()
EXIT_FAILURE
EXIT_SUCCESS
exp()
exp() (generic) (since C99)
exp2() (since C99)
exp2() (generic) (since C99)
exp2f() (since C99)
exp2l() (since C99)
expf() (since C99)
expl() (since C99)
expm1() (since C99)
expm1() (generic) (since C99)
expm1f() (since C99)
expm1l() (since C99)
[edit] F
fabs()
fabs() (generic) (since C99)
fabsf() (since C99)
fabsl() (since C99)
false (since C99)
fclose()
fdim() (since C99)
fdim() (generic) (since C99)
fdimf() (since C99)
fdiml() (since C99)
FE_ALL_EXCEPT (since C99)
FE_DFL_ENV (since C99)
FE_DIVBYZERO (since C99)
FE_DOWNWARD (since C99)
FE_INEXACT (since C99)
FE_INVALID (since C99)
FE_OVERFLOW (since C99)
FE_TONEAREST (since C99)
FE_TOWARDZERO (since C99)
FE_UNDERFLOW (since C99)
FE_UPWARD (since C99)
feclearexcept() (since C99)
fegetenv() (since C99)
fegetexceptflag() (since C99)
fegetround() (since C99)
feholdexcept() (since C99)
fenv_t (since C99)
feof()
feraiseexcept() (since C99)
ferror()
fesetenv() (since C99)
fesetexceptflag() (since C99)
fesetround() (since C99)
fetestexcept() (since C99)
feupdateenv() (since C99)
fexcept_t (since C99)
fflush()
fgetc()
fgetpos()
fgets()
fgetwc() (since C95)
fgetws() (since C95)
FILE
FILENAME_MAX
float_t (since C99)
floor()
floor() (generic) (since C99)
floorf() (since C99)
floorl() (since C99)
FLT_DECIMAL_DIG (since C11)
FLT_DIG
FLT_EPSILON
FLT_EVAL_METHOD (since C99)
FLT_HAS_SUBNORM (since C11)
FLT_MANT_DIG
FLT_MAX
FLT_MAX_10_EXP
FLT_MAX_EXP
FLT_MIN
FLT_MIN_10_EXP
FLT_MIN_EXP
FLT_RADIX
FLT_ROUNDS
FLT_TRUE_MIN (since C11)
fma() (since C99)
fma() (generic) (since C99)
fmaf() (since C99)
fmal() (since C99)
fmax() (since C99)
fmax() (generic) (since C99)
fmaxf() (since C99)
fmaxl() (since C99)
fmin() (since C99)
fmin() (generic) (since C99)
fminf() (since C99)
fminl() (since C99)
fmod()
fmod() (generic) (since C99)
fmodf() (since C99)
fmodl() (since C99)
fopen()
FOPEN_MAX
fopen_s() (since C11)
FP_FAST_FMA (since C99)
FP_FAST_FMAF (since C99)
FP_FAST_FMAL (since C99)
FP_ILOGB0 (since C99)
FP_ILOGBNAN (since C99)
FP_INFINITE (since C99)
FP_NAN (since C99)
FP_NORNAL (since C99)
FP_SUBNORMAL (since C99)
FP_ZERO (since C99)
fpclassify() (since C99)
fpos_t
fprintf()
fprintf_s() (since C11)
fputc()
fputs()
fputwc() (since C95)
fputws() (since C95)
fread()
free()
freopen()
freopen_s() (since C11)
frexp()
frexp() (generic) (since C99)
frexpf() (since C99)
frexpl() (since C99)
fscanf()
fscanf_s() (since C11)
fseek()
fsetpos()
ftell()
fwide() (since C95)
fwprintf() (since C95)
fwprintf_s() (since C11)
fwrite()
fwscanf() (since C95)
fwscanf_s() (since C11)
[edit] G
getc()
getchar()
getenv()
getenv_s() (since C11)
gets() (removed in C11)
gets_s() (since C11)
getwc() (since C95)
getwchar() (since C95)
gmtime()
gmtime_s() (since C11)
[edit] H
HUGE_VAL
HUGE_VALF (since C99)
HUGE_VALL (since C99)
hypot() (since C99)
hypot() (generic) (since C99)
hypotf() (since C99)
hypotl() (since C99)
[edit] I
I (since C99)
ignore_handler_s() (since C11)
ilogb() (since C99)
ilogb() (generic) (since C99)
ilogbf() (since C99)
ilogbl() (since C99)
imaginary (keyword macro) (since C99)
imaxabs() (since C99)
imaxdiv() (since C99)
imaxdiv_t (since C99)
INFINITY (since C99)
INTWIDTH_MAX


INT_FAST16_MAX (since C99) 
INTWIDTH_MIN


INT_FAST16_MIN (since C99) 
intwidth_t


int_fast16_t (since C99) 
INT_MAX
INT_MIN
INT16_C() (since C99)
INT32_C() (since C99)
INT64_C() (since C99)
INT8_C() (since C99)
INTMAX_C() (since C99)
isalnum()
isalpha()
isblank() (since C99)
iscntrl()
isdigit()
isfinite() (since C99)
isgraph()
isgreater() (since C99)
isgreaterequal() (since C99)
isinf() (since C99)
isless() (since C99)
islessequal() (since C99)
islessgreater() (since C99)
islower()
isnan() (since C99)
isnormal() (since C99)
isprint()
ispunct()
isspace()
isunordered() (since C99)
isupper()
iswalnum() (since C95)
iswalpha() (since C95)
iswblank() (since C99)
iswcntrl() (since C95)
iswctype() (since C95)
iswdigit() (since C95)
iswgraph() (since C95)
iswlower() (since C95)
iswprint() (since C95)
iswpunct() (since C95)
iswspace() (since C95)
iswupper() (since C95)
iswxdigit() (since C95)
isxdigit()
[edit] J
[edit] K
kill_dependency() (since C11)
[edit] L
L_tmpnam
L_tmpnam_s (since C11)
labs()
LC_ALL
LC_COLLATE
LC_CTYPE
LC_MONETARY
LC_NUMERIC
LC_TIME
lconv
LDBL_DECIMAL_DIG (since C11)
LDBL_DIG
LDBL_EPSILON
LDBL_HAS_SUBNORM (since C11)
LDBL_MANT_DIG
LDBL_MAX
LDBL_MAX_10_EXP
LDBL_MAX_EXP
LDBL_MIN
LDBL_MIN_10_EXP
LDBL_MIN_EXP
LDBL_TRUE_MIN (since C11)
ldexp()
ldexp() (generic) (since C99)
ldexpf() (since C99)
ldexpl() (since C99)
ldiv()
ldiv_t
lgamma() (since C99)
lgamma() (generic) (since C99)
lgammaf() (since C99)
lgammal() (since C99)
llabs() (since C99)
lldiv() (since C99)
lldiv_t (since C99)
LLONG_MAX (since C99)
LLONG_MIN (since C99)
llrint() (since C99)
llrint() (generic) (since C99)
llrintf() (since C99)
llrintl() (since C99)
llround() (since C99)
llround() (generic) (since C99)
llroundf() (since C99)
llroundl() (since C99)
localeconv()
localtime()
localtime_s() (since C11)
log()
log() (generic) (since C99)
log10()
log10() (generic) (since C99)
log10f() (since C99)
log10l() (since C99)
log1p() (since C99)
log1p() (generic) (since C99)
log1pf() (since C99)
log1pl() (since C99)
log2() (since C99)
log2() (generic) (since C99)
log2f() (since C99)
log2l() (since C99)
logb() (since C99)
logb() (generic) (since C99)
logbf() (since C99)
logbl() (since C99)
logf() (since C99)
logl() (since C99)
LONG_MAX
LONG_MIN
longjmp()
lrint() (since C99)
lrint() (generic) (since C99)
lrintf() (since C99)
lrintl() (since C99)
lround() (since C99)
lround() (generic) (since C99)
lroundf() (since C99)
lroundl() (since C99)
[edit] M
MATH_ERREXCEPT (since C99)
math_errhandling (since C99)
MATH_ERRNO (since C99)
max_align_t (since C11)
MB_CUR_MAX (macro variable)
MB_LEN_MAX
mblen()
mbrlen() (since C95)
mbrtoc16() (since C11)
mbrtoc32() (since C11)
mbrtowc() (since C95)
mbsinit() (since C95)
mbsrtowcs() (since C95)
mbsrtowcs_s() (since C11)
mbstate_t (since C95)
mbstowcs() (since C95)
mbstowcs_s() (since C11)
mbtowc()
memchr()
memcmp()
memcpy()
memcpy_s() (since C11)
memmove()
memmove_s() (since C11)
memory_order (since C11)
memory_order_acq_rel (since C11)
memory_order_acquire (since C11)
memory_order_consume (since C11)
memory_order_relaxed (since C11)
memory_order_release (since C11)
memory_order_seq_cst (since C11)
memset()
memset_s() (since C11)
mktime()
modf()
modff() (since C99)
modfl() (since C99)
mtx_destroy() (since C11)
mtx_init() (since C11)
mtx_lock() (since C11)
mtx_plain (since C11)
mtx_recursive (since C11)
mtx_t (since C11)
mtx_timed (since C11)
mtx_timedlock() (since C11)
mtx_trylock() (since C11)
mtx_unlock() (since C11)
[edit] N
NAN (since C99)
nan() (since C99)
nanf() (since C99)
nanl() (since C99)
nearbyint() (since C99)
nearbyint() (generic) (since C99)
nearbyintf() (since C99)
nearbyintl() (since C99)
nextafter() (since C99)
nextafter() (generic) (since C99)
nextafterf() (since C99)
nextafterl() (since C99)
nexttoward() (since C99)
nexttoward() (generic) (since C99)
nexttowardf() (since C99)
nexttowardl() (since C99)
noreturn (keyword macro) (since C11)
not (operator macro) (since C95)
not_eq (operator macro) (since C95)
NULL
[edit] O
offsetof()
once_flag (since C11)
ONCE_FLAG_INIT (since C11)
or (operator macro) (since C95)
or_eq (operator macro) (since C95)
[edit] P
perror()
pow()
pow() (generic) (since C99)
powf() (since C99)
powl() (since C99)
PRI{d i o u x X}WIDTH (macro string)


PRId16 (since C99) 
printf()
printf_s() (since C11)
PTRDIFF_MAX (since C99)
PTRDIFF_MIN (since C99)
ptrdiff_t
putc()
putchar()
puts()
putwc() (since C95)
putwchar() (since C95)
[edit] Q
qsort()
qsort_s() (since C11)
quick_exit() (since C11)
[edit] R
raise()
rand()
RAND_MAX
realloc()
remainder() (since C99)
remainder() (generic) (since C99)
remainderf() (since C99)
remainderl() (since C99)
remove()
remquo() (since C99)
remquo() (generic) (since C99)
remquof() (since C99)
remquol() (since C99)
rename()
rewind()
rint() (since C99)
rint() (generic) (since C99)
rintf() (since C99)
rintl() (since C99)
round() (since C99)
round() (generic) (since C99)
roundf() (since C99)
roundl() (since C99)
RSIZE_MAX (macro variable) (since C11)
rsize_t (since C11)
[edit] S
scalbln() (since C99)
scalbln() (generic) (since C99)
scalblnf() (since C99)
scalblnl() (since C99)
scalbn() (since C99)
scalbn() (generic) (since C99)
scalbnf() (since C99)
scalbnl() (since C99)
scanf()
scanf_s() (since C11)
SCHAR_MAX
SCHAR_MIN
SCN{d i o u x}WIDTH (macro string)


SCNd16 (since C99) 
SEEK_CUR
SEEK_END
SEEK_SET
set_constraint_handler_s() (since C11)
setbuf()
setjmp()
setlocale()
setvbuf()
SHRT_MAX
SHRT_MIN
SIG_ATOMIC_MAX (since C99)
SIG_ATOMIC_MIN (since C99)
sig_atomic_t
SIG_DFL
SIG_ERR
SIG_IGN
SIGABRT
SIGFPE
SIGILL
SIGINT
signal()
signbit() (since C99)
SIGSEGV
SIGTERM
sin()
sin() (generic) (since C99)
sinf() (since C99)
sinh()
sinh() (generic) (since C99)
sinhf() (since C99)
sinhl() (since C99)
sinl() (since C99)
SIZE_MAX (since C99)
size_t
snprintf() (since C99)
snprintf_s() (since C11)
snwprintf_s() (since C11)
sprintf()
sprintf_s() (since C11)
sqrt()
sqrt() (generic) (since C99)
sqrtf() (since C99)
sqrtl() (since C99)
srand()
sscanf()
sscanf_s() (since C11)
static_assert (keyword macro) (since C11)
stderr
stdin
stdout
strcat()
strcat_s() (since C11)
strchr()
strcmp()
strcoll()
strcpy()
strcpy_s() (since C11)
strcspn()
strerror()
strerror_s() (since C11)
strerrorlen_s() (since C11)
strftime()
strlen()
strncat()
strncat_s() (since C11)
strncmp()
strncpy()
strncpy_s() (since C11)
strnlen_s() (since C11)
strpbrk()
strrchr()
strspn()
strstr()
strtod()
strtof() (since C99)
strtoimax() (since C99)
strtok()
strtok_s() (since C11)
strtol()
strtold()
strtoll() (since C99)
strtoul()
strtoull() (since C99)
strtoumax() (since C99)
strxfrm()
swprintf() (since C95)
swprintf_s() (since C11)
swscanf() (since C95)
swscanf_s() (since C11)
system()
[edit] T
tan()
tan() (generic) (since C99)
tanf() (since C99)
tanh() (since C99)
tanh() (generic) (since C99)
tanhf() (since C99)
tanhl() (since C99)
tanl() (since C99)
tgamma() (since C99)
tgamma() (generic) (since C99)
tgammaf() (since C99)
tgammal() (since C99)
thrd_busy (since C11)
thrd_create() (since C11)
thrd_current() (since C11)
thrd_detach() (since C11)
thrd_equal() (since C11)
thrd_error (since C11)
thrd_join() (since C11)
thrd_nomem (since C11)
thrd_sleep() (since C11)
thrd_start_t (since C11)
thrd_success (since C11)
thrd_t (since C11)
thrd_timedout (since C11)
thrd_yield() (since C11)
thread_local (keyword macro) (since C11)
time()
time_t
TIME_UTC (since C11)
timespec (since C11)
timespec_get() (since C11)
tm
TMP_MAX
TMP_MAX_S (since C11)
tmpfile()
tmpfile_s() (since C11)
tmpnam()
tmpnam_s() (since C11)
tolower()
toupper()
towctrans() (since C95)
towlower() (since C95)
towupper() (since C95)
true (since C99)
trunc() (since C99)
trunc() (generic) (since C99)
truncf() (since C99)
truncl() (since C99)
tss_create() (since C11)
tss_delete() (since C11)
TSS_DTOR_ITERATIONS (since C11)
tss_dtor_t (since C11)
tss_get() (since C11)
tss_set() (since C11)
tss_t (since C11)
[edit] U
UINTWIDTH_MAX


UINT_FAST16_MAX (since C99) 
uintwidth_t


uint_fast16_t (since C99) 
UINT_MAX
UINT16_C() (since C99)
UINT32_C() (since C99)
UINT64_C() (since C99)
UINT8_C() (since C99)
UINTMAX_C() (since C99)
ULLONG_MAX (since C99)
ULONG_MAX
ungetc()
ungetwc() (since C95)
USHRT_MAX
[edit] V
va_arg()
va_copy() (since C99)
va_end()
va_list
va_start()
vfprintf()
vfprintf_s() (since C11)
vfscanf() (since C99)
vfscanf_s() (since C11)
vfwprintf() (since C95)
vfwprintf_s() (since C11)
vfwscanf() (since C99)
vfwscanf_s() (since C11)
vprintf()
vprintf_s() (since C11)
vscanf() (since C99)
vscanf_s() (since C11)
vsnprintf() (since C99)
vsnprintf_s() (since C11)
vsnwprintf_s() (since C11)
vsprintf()
vsprintf_s() (since C11)
vsscanf() (since C99)
vsscanf_s() (since C11)
vswprintf() (since C95)
vswprintf_s() (since C11)
vswscanf() (since C99)
vswscanf_s() (since C11)
vwprintf() (since C95)
vwprintf_s() (since C11)
vwscanf() (since C99)
vwscanf_s() (since C11)
[edit] W
WCHAR_MAX (since C99)
WCHAR_MIN (since C99)
wchar_t
wcrtomb() (since C95)
wcrtomb_s() (since C11)
wcscat() (since C95)
wcscat_s() (since C11)
wcschr() (since C95)
wcscmp() (since C95)
wcscoll() (since C95)
wcscpy() (since C95)
wcscpy_s() (since C11)
wcscspn() (since C95)
wcsftime() (since C95)
wcslen() (since C95)
wcsncat() (since C95)
wcsncat_s() (since C11)
wcsncmp() (since C95)
wcsncpy() (since C95)
wcsncpy_s() (since C11)
wcsnlen_s() (since C11)
wcspbrk() (since C95)
wcsrchr() (since C95)
wcsrtombs() (since C95)
wcsrtombs_s() (since C11)
wcsspn() (since C95)
wcsstr() (since C95)
wcstod() (since C95)
wcstof() (since C99)
wcstoimax() (since C99)
wcstok() (since C95)
wcstok_s() (since C11)
wcstol() (since C95)
wcstold() (since C99)
wcstoll() (since C99)
wcstombs()
wcstombs_s() (since C11)
wcstoul() (since C95)
wcstoull() (since C99)
wcstoumax() (since C99)
wcsxfrm() (since C95)
wctob() (since C95)
wctomb()
wctomb_s() (since C11)
wctrans() (since C95)
wctrans_t (since C95)
wctype() (since C95)
wctype_t (since C95)
WEOF (since C95)
WINT_MAX (since C99)
WINT_MIN (since C99)
wint_t (since C95)
wmemchr() (since C95)
wmemcmp() (since C95)
wmemcpy() (since C95)
wmemcpy_s() (since C11)
wmemmove() (since C95)
wmemmove_s() (since C11)
wmemset() (since C95)
wprintf() (since C95)
wprintf_s() (since C11)
wscanf() (since C95)
wscanf_s() (since C11)
[edit] X
xor (operator macro) (since C95)
xor_eq (operator macro) (since C95)