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7.6.1 Standard library

The interrupt disabled time, use of the initialized data section (.data), use of the uninitialized data section (.bss), and the reentrancy of each function in the standard library are shown in the following.

The interrupt disabled time is displayed, starting from the left, for the case of not using division/multiplication and multiply-accumulate units, the case of using division/multiplication and multiply-accumulate units, the case of using division/multiplication extended instructions (single precision), and the case of using division/multiplication extended instructions (double precision). A single numerical value is common for all libraries.

Function Name	Interrupt Disabled Time	Use of .data	Use of .bss	Reentrancy	Remark (non-reentrancy source)
assert	0	X	X	O
isalnum	0	X	X	O
isalpha	0	X	X	O
isascii	0	X	X	O
isblank [V1.07 or later]	0	X	X	O	(C99)
iscntrl	0	X	X	O
isdigit	0	X	X	O
isgraph	0	X	X	O
islower	0	X	X	O
isprint	0	X	X	O
ispunct	0	X	X	O
isspace	0	X	X	O
isupper	0	X	X	O
isxdigit	0	X	X	O
toascii	0	X	X	O
tolower	0	X	X	O
toupper	0	X	X	O
imaxabs [V1.07 or later]	0	X	X	O	(C99)
imaxdiv [V1.07 or later]	0/42/0/0	X	X	O	(C99)
strtoimax [V1.07 or later]	0/43/0/0	O	X	X	errno (C99)
_COM_strtoimax_ff [V1.07 or later]	0/43/0/0	O	X	X	errno (C99)
strtoumax [V1.07 or later]	0/43/0/0	O	X	X	errno (C99)
_COM_strtoumax_ff [V1.07 or later]	0/43/0/0	O	X	X	errno (C99)
fpclassify [V1.08 or later]	0	X	X	O	(C99)
isfinite [V1.08 or later]	0	X	X	O	(C99)
isinf [V1.08 or later]	0	X	X	O	(C99)
isnan [V1.08 or later]	0	X	X	O	(C99)
isnormal [V1.08 or later]	0	X	X	O	(C99)
signbit [V1.08 or later]	0	X	X	O	(C99)
acos	0/41/0/0	O	X	X	errno
acosf	0/41/0/0	O	X	X	errno
acosl [V1.08 or later]	0/41/0/0	O	X	X	errno (C99)
asin	0/41/0/0	O	X	X	errno
asinf	0/41/0/0	O	X	X	errno
asinl [V1.08 or later]	0/41/0/0	O	X	X	errno (C99)
atan	0/41/0/0	O	X	X	errno
atanf	0/41/0/0	O	X	X	errno
atanl [V1.08 or later]	0/41/0/0	O	X	X	errno (C99)
atan2	0/41/0/0	O	X	X	errno
atan2f	0/41/0/0	O	X	X	errno
atan2l [V1.08 or later]	0/41/0/0	O	X	X	errno (C99)
cos	0/14/0/0	O	X	X	errno
cosf	0/14/0/0	O	X	X	errno
cosl [V1.08 or later]	0/14/0/0	O	X	X	errno (C99)
sin	0/14/0/0	O	X	X	errno
sinf	0/14/0/0	O	X	X	errno
sinl [V1.08 or later]	0/14/0/0	O	X	X	errno (C99)
tan	0/41/0/0	O	X	X	errno
tanf	0/41/0/0	O	X	X	errno
tanl [V1.08 or later]	0/41/0/0	O	X	X	errno (C99)
acosh [V1.08 or later]	0/41/0/0	O	X	X	errno (C99)
acoshf [V1.08 or later]	0/41/0/0	O	X	X	errno (C99)
acoshl [V1.08 or later]	0/41/0/0	O	X	X	errno (C99)
asinh [V1.08 or later]	0/41/0/0	O	X	O	(C99)
asinhf [V1.08 or later]	0/41/0/0	O	X	O	(C99)
asinhl [V1.08 or later]	0/41/0/0	O	X	O	(C99)
atanh [V1.08 or later]	0/41/0/0	O	X	X	errno (C99)
atanhf [V1.08 or later]	0/41/0/0	O	X	X	errno (C99)
atanhl [V1.08 or later]	0/41/0/0	O	X	X	errno (C99)
cosh	0/41/0/0	O	X	X	errno
coshf	0/41/0/0	O	X	X	errno
coshl [V1.08 or later]	0/41/0/0	O	X	X	errno (C99)
sinh	0/41/0/0	O	X	X	errno
sinhf	0/41/0/0	O	X	X	errno
sinhl [V1.08 or later]	0/41/0/0	O	X	X	errno (C99)
tanh	0/41/0/0	O	X	X	errno
tanhf	0/41/0/0	O	X	X	errno
tanhl [V1.08 or later]	0/41/0/0	O	X	X	errno (C99)
exp	0/41/0/0	O	X	X	errno
expf	0/41/0/0	O	X	X	errno
expl [V1.08 or later]	0/41/0/0	O	X	X	errno (C99)
frexp	0/14/0/0	O	X	X	errno
frexpf	0/14/0/0	O	X	X	errno
frexpl [V1.08 or later]	0/14/0/0	O	X	X	errno (C99)
ldexp	0/14/0/0	O	X	X	errno
ldexpf	0/14/0/0	O	X	X	errno
ldexpl [V1.08 or later]	0/14/0/0	O	X	X	errno (C99)
log	0/14/0/0	O	X	X	errno
logf	0/14/0/0	O	X	X	errno
logl [V1.08 or later]	0/14/0/0	O	X	X	errno (C99)
log10	0/14/0/0	O	X	X	errno
log10f	0/14/0/0	O	X	X	errno
log10l [V1.08 or later]	0/14/0/0	O	X	X	errno (C99)
log1p [V1.08 or later]	0/41/0/0	O	X	X	errno (C99)
log1pf [V1.08 or later]	0/41/0/0	O	X	X	errno (C99)
log1pl [V1.08 or later]	0/41/0/0	O	X	X	errno (C99)
modf	0	O	X	X	errno
modff	0	O	X	X	errno
modfl [V1.08 or later]	0	O	X	X	errno (C99)
scalbn [V1.09 or later]	0/14/0/0	O	X	X	errno (C99)
scalbnf [V1.09 or later]	0/14/0/0	O	X	X	errno (C99)
scalbnl [V1.09 or later]	0/14/0/0	O	X	X	errno (C99)
scalbln [V1.09 or later]	0/14/0/0	O	X	X	errno (C99)
scalblnf [V1.09 or later]	0/14/0/0	O	X	X	errno (C99)
scalblnl [V1.09 or later]	0/14/0/0	O	X	X	errno (C99)
fabs	0	O	X	X	errno
fabsf	0	O	X	X	errno
fabsl [V1.08 or later]	0	O	X	X	errno (C99)
pow	0/41/0/0	O	X	X	errno
powf	0/41/0/0	O	X	X	errno
powl [V1.08 or later]	0/41/0/0	O	X	X	errno (C99)
sqrt	0/24/0/0	O	X	X	errno
sqrtf	0/24/0/0	O	X	X	errno
sqrtl [V1.08 or later]	0/24/0/0	O	X	X	errno (C99)
ceil	0	O	X	X	errno
ceilf	0	O	X	X	errno
ceill [V1.08 or later]	0	O	X	X	errno (C99)
floor	0	O	X	X	errno
floorf	0	O	X	X	errno
floorl [V1.08 or later]	0	O	X	X	errno (C99)
nearbyint [V1.09 or later]	0	X	X	O	(C99)
nearbyintf [V1.09 or later]	0	X	X	O	(C99)
nearbyintl [V1.09 or later]	0	X	X	O	(C99)
rint [V1.09 or later]	0	X	X	O	(C99)
rintf [V1.09 or later]	0	X	X	O	(C99)
rintl [V1.09 or later]	0	X	X	O	(C99)
lrint [V1.09 or later]	0	X	X	X	errno (C99)
lrintf [V1.09 or later]	0	X	X	X	errno (C99)
lrintl [V1.09 or later]	0	X	X	X	errno (C99)
llrint [V1.09 or later]	0	X	X	X	errno (C99)
llrintf [V1.09 or later]	0	X	X	X	errno (C99)
llrintl [V1.09 or later]	0	X	X	X	errno (C99)
round [V1.09 or later]	0	X	X	O	(C99)
roundf [V1.09 or later]	0	X	X	O	(C99)
roundl [V1.09 or later]	0	X	X	O	(C99)
lround [V1.09 or later]	0	X	X	X	errno (C99)
lroundf [V1.09 or later]	0	X	X	X	errno (C99)
lroundl [V1.09 or later]	0	X	X	X	errno (C99)
llround [V1.09 or later]	0	X	X	X	errno (C99)
llroundf [V1.09 or later]	0	X	X	X	errno (C99)
llroundl [V1.09 or later]	0	X	X	X	errno (C99)
trunc [V1.09 or later]	0	X	X	O	(C99)
truncf [V1.09 or later]	0	X	X	O	(C99)
truncl [V1.09 or later]	0	X	X	O	(C99)
fmod	0/14/0/0	O	X	X	errno
fmodf	0/14/0/0	O	X	X	errno
fmodl [V1.08 or later]	0/14/0/0	O	X	X	errno (C99)
copysign [V1.09 or later]	0	X	X	O	(C99)
copysignf [V1.09 or later]	0	X	X	O	(C99)
copysignl [V1.09 or later]	0	X	X	O	(C99)
nan [V1.09 or later]	0	X	X	O	(C99)
nanf [V1.09 or later]	0	X	X	O	(C99)
nanl [V1.09 or later]	0	X	X	O	(C99)
fdim [V1.09 or later]	0	X	X	O	(C99)
fdimf [V1.09 or later]	0	X	X	O	(C99)
fdiml [V1.09 or later]	0	X	X	O	(C99)
fmax [V1.09 or later]	0	X	X	O	(C99)
fmaxf [V1.09 or later]	0	X	X	O	(C99)
fmaxl [V1.09 or later]	0	X	X	O	(C99)
fmin [V1.09 or later]	0	X	X	O	(C99)
fminf [V1.09 or later]	0	X	X	O	(C99)
fminl [V1.09 or later]	0	X	X	O	(C99)
isgreater [V1.09 or later]	0	X	X	O	(C99)
isgreaterequal [V1.09 or later]	0	X	X	O	(C99)
isless [V1.09 or later]	0	X	X	O	(C99)
islessequal [V1.09 or later]	0	X	X	O	(C99)
islessgreater [V1.09 or later]	0	X	X	O	(C99)
isunordered [V1.09 or later]	0	X	X	O	(C99)
setjmp	0	X	X	Δ	When the pointer reference destination is updated
longjmp	0	X	X	X	SP
va_start	0	X	X	O
va_arg	0	X	X	O
va_copy [V1.09 or later]	0	X	X	O	(C99)
va_end	0	X	X	O
printf	0/43/0/0	X	O	X	stdout, Internal management data
scanf	0/41/0/0	O	X	X	stdin
snprintf [V1.07 or later]	0/43/0/0	X	O	X	Internal management data (C99)
sprintf	0/43/0/0	X	O	X	Internal management data
sscanf	0/41/0/0	X	O	Δ	When the pointer reference destination is updated
vprintf	0/43/0/0	X	O	X	stdout,Internal management data
vscanf [V1.08 or later]	0/41/0/0	O	X	X	stdin (C99)
vsnprintf [V1.07 or later]	0/43/0/0	X	O	X	Internal management data (C99)
vsprintf	0/43/0/0	X	O	X	Internal management data
vsscanf [V1.08 or later]	0/41/0/0	O	X	Δ	When the pointer reference destination is updated (C99)
getchar	0	X	X	X	stdin
gets	0	X	X	X	stdin
_COM_gets_f	0	X	X	X	stdin
putchar	0	X	X	X	stdout
puts	0	X	X	X	stdout
_COM_puts_f	0	X	X	X	stdout
perror	0	O	X	X	errno
_COM_perror_f	0	O	X	X	errno
atof	0/41/0/0	O	X	X	errno
_COM_atof_f	0/41/0/0	O	X	X	errno
atoff	0/41/0/0	O	X	X	errno
_COM_atoff_f	0/41/0/0	O	X	X	errno
atoi	0/40/0/0	O	X	X	errno
_COM_atoi_f	0/40/0/0	O	X	X	errno
atol	0/40/0/0	O	X	X	errno
_COM_atol_f	0/40/0/0	O	X	X	errno
atoll [V1.07 or later]	0/43/0/0	O	X	X	errno (C99)
_COM_atoll_f [V1.07 or later]	0/43/0/0	O	X	X	errno (C99)
strtod	0/41/0/0	O	X	X	errno
_COM_strtod_ff	0/41/0/0	O	X	X	errno
strtof	0/41/0/0	O	X	X	errno
_COM_strtof_ff	0/41/0/0	O	X	X	errno
strtold [V1.07 or later]	0/41/0/0	O	X	X	errno (C99)
_COM_strtold_ff [V1.07 or later]	0/41/0/0	O	X	X	errno (C99)
strtol	0/40/0/0	O	X	X	errno
_COM_strtol_ff	0/40/0/0	O	X	X	errno
strtoll [V1.07 or later]	0/43/0/0	O	X	X	errno (C99)
_COM_strtoll_ff [V1.07 or later]	0/43/0/0	O	X	X	errno (C99)
strtoul	0/40/0/0	O	X	X	errno
_COM_strtoul_ff	0/40/0/0	O	X	X	errno
strtoull [V1.07 or later]	0/43/0/0	O	X	X	errno (C99)
_COM_strtoull_ff [V1.07 or later]	0/43/0/0	O	X	X	errno (C99)
rand	0/24/0/0	O	X	X	seed
srand	0	O	X	X	seed
calloc [V1.02 or later]	0	O	O	X	Internal management data
free [V1.02 or later]	0	O	O	X	Internal management data
malloc [V1.02 or later]	0	O	O	X	Internal management data
realloc [V1.02 or later]	0	O	O	X	Internal management data
abort	0	X	X	-	Processing is not returned
bsearch	0	X	X	Δ	When the pointer reference destination is updated
_COM_bsearch_f	0	X	X	Δ	When the pointer reference destination is updated
qsort	0/40/0/0	X	X	Δ	When the pointer reference destination is updated
_COM_qsort_f	0/40/0/0	X	X	Δ	When the pointer reference destination is updated
abs	0	X	X	O
div	0/39/0/0	X	X	O
labs	0	X	X	O
ldiv	0/45/0/0	X	X	O
llabs [V1.07 or later]	0	X	X	O	(C99)
lldiv [V1.07 or later]	0/42/0/0	X	X	O	(C99)
memcpy	0	X	X	Δ	When the pointer reference destination is updated
_COM_memcpy_f	0	X	X	Δ	When the pointer reference destination is updated
memmove	0	X	X	Δ	When the pointer reference destination is updated
_COM_memmove_ff	0	X	X	Δ	When the pointer reference destination is updated
strcpy	0	X	X	Δ	When the pointer reference destination is updated
_COM_strcpy_ff	0	X	X	Δ	When the pointer reference destination is updated
strncpy	0	X	X	Δ	When the pointer reference destination is updated
_COM_strncpy_ff	0	X	X	Δ	When the pointer reference destination is updated
strcat	0	X	X	Δ	When the pointer reference destination is updated
_COM_strcat_ff	0	X	X	Δ	When the pointer reference destination is updated
strncat	0	X	X	Δ	When the pointer reference destination is updated
_COM_strncat_ff	0	X	X	Δ	When the pointer reference destination is updated
memcmp	0	X	X	Δ	When the pointer reference destination is updated
_COM_memcmp_ff	0	X	X	Δ	When the pointer reference destination is updated
strcmp	0	X	X	Δ	When the pointer reference destination is updated
_COM_strcmp_ff	0	X	X	Δ	When the pointer reference destination is updated
strncmp	0	X	X	Δ	When the pointer reference destination is updated
_COM_strncmp_ff	0	X	X	Δ	When the pointer reference destination is updated
memchr	0	X	X	Δ	When the pointer reference destination is updated
_COM_memchr_f	0	X	X	Δ	When the pointer reference destination is updated
strchr	0	X	X	Δ	When the pointer reference destination is updated
_COM_strchr_f	0	X	X	Δ	When the pointer reference destination is updated
strcspn	0	X	X	Δ	When the pointer reference destination is updated
_COM_strcspn_ff	0	X	X	Δ	When the pointer reference destination is updated
strpbrk	0	X	X	Δ	When the pointer reference destination is updated
_COM_strpbrk_ff	0	X	X	Δ	When the pointer reference destination is updated
strrchr	0	X	X	Δ	When the pointer reference destination is updated
_COM_strrchr_f	0	X	X	Δ	When the pointer reference destination is updated
strspn	0	X	X	Δ	When the pointer reference destination is updated
_COM_strspn_ff	0	X	X	Δ	When the pointer reference destination is updated
strstr	0	X	X	Δ	When the pointer reference destination is updated
_COM_strstr_ff	0	X	X	Δ	When the pointer reference destination is updated
strtok	0	X	O	X	Internal management data
memset	0	X	X	Δ	When the pointer reference destination is updated
_COM_memset_f	0	X	X	Δ	When the pointer reference destination is updated
strerror	0	X	X	O
strlen	0	X	X	Δ	When the pointer reference destination is updated
_COM_strlen_f	0	X	X	Δ	When the pointer reference destination is updated
hdwinit	0	X	X	X	Initializing process
stkinit	0	X	X	X	Initializing process