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Compound Statements (Blocks)


The latest version of this topic can be found at Compound Statements (Blocks).

A compound statement consists of zero or more statements enclosed in curly braces ({ }). A compound statement can be used anywhere a statement is expected. Compound statements are commonly called "blocks."

{ [ statement-list ] }  

The following example uses a compound statement as the statement part of the if statement (see The if Statement for details about the syntax):

if( Amount > 100 )  
    cout << "Amount was too large to handle\n";  
    Balance -= Amount;  

System_CAPS_ICON_note.jpg Note

Because a declaration is a statement, a declaration can be one of the statements in the statement-list. As a result, names declared inside a compound statement, but not explicitly declared as static, have local scope and (for objects) lifetime. See Scope for details about treatment of names with local scope.

Overview of C++ Statements