Name

operator keyword — Function call syntax for operators

Synopsis

               operator-function-id ::= operator op-symbol | 
    operator op-symbol < [template-arg-list] >
conversion-function-id ::= operator conversion-type-id
               conversion-type-id ::= type-specifier-seq [conversion-declarator]
conversion-declarator ::= ptr-operator [conversion-declarator]
ptr-operator ::= * [cv-qualifier-seq] | & | [::] nested-name :: * [cv-qualifier-seq]

The operator keyword converts an operator symbol into function notation. You can use the operator keyword when invoking an operator or when overloading an operator.