abs
acos
acosh
asin
asinh
atan
atan2
atanh
atoi
atol
atoll
calloc
ceil
clearerr
closedir
cos
cosh
debug_printf
difftime
div
exit
exp
fabs
fclose
feof
ferror
fflush
fgetc
fgetpos
fgets
floor
fmod
fopen
fputc
fputs
fread
free
freopen
frexp
fseek
fsetpos
ftell
fwrite
getchar
gets
hypot
itoa
labs
ldexp
ldiv
llabs
lldiv
localtime
log
malloc
memccpy
memchr
memcmp
memcpy
memmove
memset
mktime
modf
modfl
opendir
perror
pow
pow10
pow2
printf
puts
readdir
realloc
remove
rename
rewind
rewinddir
seekdir
setbuf
setvbuf
sin
sinh
snprintf
sprintf
sqrt
strcat
strchr
strcmp
strcoll
strcpy
strcspn
strerror
strlen
strncat
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strncpy
strpbrk
strrchr
strrev
strspn
strstr
strtok
strxfrm
tan
tanh
telldir
time
tmpfile
tmpnam
vprintf
vsnprintf