[stmt.expr]

# 8 Statements [[stmt]](./#stmt)

## 8.3 Expression statement [stmt.expr]

[1](#1)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/statements.tex#L217)

Expression statements have the form

[expression-statement:](#nt:expression-statement "8.3 Expression statement [stmt.expr]")  
[*expression*](expr.comma#nt:expression "7.6.20 Comma operator [expr.comma]")opt ;

The expression is
a [discarded-value expression](expr.context#def:discarded-value_expression "7.2.3 Context dependence [expr.context]")[.](#1.sentence-2)

Allside effects from an expression statement
are completed before the next statement is executed[.](#1.sentence-3)

An expression statement with the [*expression*](expr.comma#nt:expression "7.6.20 Comma operator [expr.comma]") missing is called
a [*null statement*](#def:statement,null "8.3 Expression statement [stmt.expr]")[.](#1.sentence-4)

[*Note [1](#note-1)*:

Most statements are expression statements — usually assignments or
function calls[.](#1.sentence-5)

A null statement is useful to supply a null body to an
iteration statement such as a while statement ([[stmt.while]](stmt.while "8.6.2 The while statement"))[.](#1.sentence-6)

— *end note*]