The void type
The void
data type always represents
an empty set of values. The only object that can be declared with
the type specifier void
is a pointer.
You cannot declare a variable of type
void
,
but you can explicitly convert any expression to type void
.
The resulting expression can only be used as one of the following
cases: - An expression statement
- The left operand of a comma expression
- The second or third operand in a conditional expression.