translation-unit :
external-declaration
translation-unit external-declaration
external-declaration :
function-definition
declaration
function-definition :
declaration-specifiers opt declarator declaration-list opt compound-statement
declaration :
declaration-specifiers init-declarator-list opt ;
declaration-list :
declaration
declaration-list declaration
declaration-specifiers :
storage-class-specifier declaration-specifiers opt
type-specifier declaration-specifiers opt
type-qualifier declaration-specifiers opt
storage-class specifier : one of
auto register static extern typedef
type specifier : one of
void char short int long float double signed
unsigned struct-or-union-specifier enum-specifier typedef-name
type-qualifier : one of
const volatile
struct-or-union-specifier :
struct-or-union identifier opt { struct-declaration-list }
struct-or-union identifier
struct-or-union : one of
struct union
struct-declaration-list :
struct declaration
struct-declaration-list struct declaration
init-declarator-list :
init-declarator
init-declarator-list , init-declarator
init-declarator :
declarator
declarator = initializer
struct-declaration :
specifier-qualifier-list struct-declarator-list ;
specifier-qualifier-list :
type-specifier specifier-qualifier-list opt
type-qualifier specifier-qualifier-list opt
struct-declarator-list :
struct-declarator
struct-declarator-list , struct-declarator
struct-declarator :
declarator
declarator opt : constant-expression
enum-specifier :
enum identifier opt { enumerator-list }
enum identifier
enumerator-list :
enumerator
enumerator-list , enumerator
enumerator :
identifier
identifier = constant-expression
declarator :
pointer opt direct-declarator
direct-declarator :
identifier
( declarator )
direct-declarator [ constant-expression opt ]
direct-declarator ( parameter-type-list )
direct-declarator ( identifier-list opt )
pointer :
* type-qualifier-list opt
* type-qualifier-list opt pointer
type-qualifier-list :
type-qualifier
type-qualifier-list type-qualifier
parameter-type-list :
parameter-list
parameter-list , ...
parameter-list :
parameter-declaration
parameter-list , parameter-declaration
parameter-declaration :
declaration-specifiers declarator
declaration-specifiers abstract-declarator opt
identifier-list :
identifier
identifier-list , identifier
initializer :
assignment-expression
{ initializer-list }
{ initializer-list , }
initializer-list :
initializer
initializer-list , initializer
type-name :
specifier-qualifier-list abstract-declarator opt
abstract-declarator :
pointer
pointer opt direct-abstract-declarator
direct-abstract-declarator :
( abstract-declarator )
direct-abstract-declarator opt [constant-expression opt ]
direct-abstract-declarator opt (parameter-type-list opt )
typedef-name :
identifier
statement :
labeled-statement
expression-statement
compound-statement
selection-statement
iteration-statement
jump-statement
labeled-statement :
identifier : statement
case constant-expression : statement
default : statement
expression-statement :
expression opt ;
compound-statement :
{ declaration-list opt statement-list opt }
statement-list :
statement
statement-list statement
selection-statement :
if (expression ) statement
if (expression ) statement else statement
switch (expression ) statement
iteration-statement :
while (expression ) statement
do statement while (expression ) ;
for (expression opt ; expression opt ; expression opt ) statement
jump-statement :
goto identifier ;
continue;
break;
return expression opt ;
expression :
assignment-expression
expression , assignment-expression
assignment-expression :
conditional-expression
unary-expression assignment-operator assignment-expression
assignment-operator : one of
= *= /= %= += -= <<= >>= &= ^= |=
conditional-expression :
logical-OR-expression
logical-OR-expression ? expression : conditional-expression
constant-expression :
conditional-expression
logical-OR-expression :
logical-AND-expression
logical-OR-expression || logical-AND-expression
logical-AND-expression :
inclusive-OR-expression
logical-AND-expression && inclusive-OR-expression
inclusive-OR-expression :
exclusive-OR-expression
inclusive-OR-expression | exclusive-OR-expression
exclusive-OR-expression :
AND-expression
exclusive-OR-expression ^ AND-expression
AND-expression :
equality-expression
AND-expression & equality-expression
equality-expression :
relational-expression
equality-expression == relational-expression
equality-expression != relational-expression
relational-expression :
shift-expression
relational-expression < shift-expression
relational-expression > shift-expression
relational-expression <= shift-expression
relational-expression >= shift-expression
shift-expression :
additive-expression
shift-expression << additive-expression
shift-expression >> additive-expression
additive-expression :
multiplicative-expression
additive-expression + multiplicative-expression
additive-expression - multiplicative-expression
multiplicative-expression :
multiplicative-expression * cast-expression
multiplicative-expression / cast-expression
multiplicative-expression % cast-expression
cast-expression :
unary expression
(type-name ) cast-expression
unary-expression :
postfix expression
++ unary expression
-- unary expression
unary-operator cast-expression
sizeof unary-expression
sizeof (type-name )
unary operator : one of
& * + - ~ !
postfix-expression :
primary-expression
postfix-expression [expression ]
postfix-expression (argument-expression-list opt )
postfix-expression .identifier
postfix-expression -> +identifier
postfix-expression ++
postfix-expression --
primary-expression :
identifier
constant
string
(expression )
argument-expression-list :
assignment-expression
assignment-expression-list , assignment-expression
constant :
integer-constant
character-constant
floating-constant
enumeration-constant
