_Exit
abort
abs
atexit
atof
atoi
atol
atoll
bsearch
calloc
div
exit
free
getenv
getsubopt
labs
ldiv
llabs
lldiv
malloc
mblen
mbstowcs
mbtowc
qsort
rand
realloc
srand
strtod
strtof
strtol
strtold
strtoll
strtoul
strtoull
system
wcstombs
wctomb