ISO/IEC 9,899:2011 clause 6.4.6--punctuation

6.4.6 Punctuation

Grammar

1. One of the following

[  ]    (  )     {  }    . + + +--& * +-~!

/% << >> < > <= >= = = = ^ |    && | |    ?    :    ; ...

= *=/=%= + = = <<= >>= &= ^= |=, # # #

<::> <%%>%:%:%:

Semantic

2, a punctuation mark is a symbol, with independent grammatical and semantic meaning. Depending on the context, it can specify an action to be performed (which in turn produces a value or a function specifier, which produces a side effect, or a combination of these), in which case it is recognized as an operator (Other forms of the operator also exist in some contexts). An operand is an entity that is manipulated by an operator.

3.

ISO/IEC 9,899:2011 clause 6.4.6--punctuation