6.5.2 Postfix operators
Syntax
postfix-expression:
primary-expression
postfix-expression [ expression ]
postfix-expression ( argument-expression-listopt )
postfix-expression . identifier
postfix-expression -> identifier
postfix-expression ++
postfix-expression –
( type-name ) { initializer-list }
( type-name ) { initializer-list , }
argument-expression-list:
assignment-expression
argument-expression-list ` :syn-term:,` assignment-expression