The header file <stdlib.h> defines a number of types, macros, and functions of general utility.

###### Types

> div_t, ldiv_t, lldiv_t

###### Macros

> RAND_MAX

###### Number conversion functions

> atoi, atol, atoll, itoa, ltoa, lltoa, strtol, strtoll, strtoul, strtoull, ultoa, ulltoa, utoa

###### Integer arithmetic functions

> div, ldiv, lldiv

###### Pseudo-random sequence generation functions

> rand, srand