#
Expression statements have the form
expression-statement
:
expression
o
p
t
;
The expression is a
discarded-value expression
.
All
side effects from an expression statement are completed before the next statement is executed
.
An expression statement with the
expression
missing is called a
null statement
.
[
Note
1
:
Most statements are expression statements — usually assignments or function calls
.
A null statement is useful to supply a null body to an iteration statement such as a
while
statement (
[stmt.
while]
)
.
—
end note
]