[stmt.expr] (original) (raw)

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Expression statements have the form

expression-statement: expression ;

The expression is a discarded-value expression.

Allside 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

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Most statements are expression statements — usually assignments or function calls.

A null statement is useful to carry a label just before the } of a compound statement and to supply a null body to an iteration statement such as a whilestatement.

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