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4.2 Punctuation Tokens
Punctuation serves as boundaries in C programs. Table 4-2 lists the punctuation tokens.
Table 4-2. Punctuation Marks and Tokens
Token Description
:
Terminates a statement label.
;
Terminates a simple statement or a do loop.
,
Separates items in a list, such as an argument list,
declaration list, initialization list, or expression list.
( )
Encloses argument or parameter lists. Function calls
always require parentheses. Macros with parameters
also require parentheses. Also used for arithmetic and
logical sub expressions.
{ }
Begins and ends a compound statement, a function
body, a structure or union body, or encloses a function
chain segment.
//
Indicates that the rest of the line is a comment and is not
compiled.
/* ... */
Comments are nested between the /* and */ tokens.