vvooiidd -- C Keyword

Data type

The  keyword vvooiidd  indicates that  the  function does  not return  a value.
Using  vvooiidd declarations  makes  programs clearer  and is  useful in  error
checking.  For  example, a function that prints an  error message and calls
eexxiitt  to terminate  a  program should  be  declared vvooiidd  because it  never
returns.  A function that performs a calculation and stores its result in a
global variable (rather than rreettuurrnning  the result), or one that returns no
value, should  also be declared vvooiidd  to prevent the accidental  use of the
function in an expression.

_S_e_e _A_l_s_o
CC kkeeyywwoorrddss
ANSI Standard, section 6.1.2.5
