hex-quad:
hexadecimal-digit hexadecimal-digit hexadecimal-digit hexadecimal-digit
universal-character-name:
\u hex-quad
\U hex-quad hex-quad
preprocessing-token:
header-name
identifier
pp-number
character-literal
user-defined-character-literal
string-literal
user-defined-string-literal
preprocessing-op-or-punc
each non-white-space character that cannot be one of the above
token:
identifier
keyword
literal
operator
punctuator
< h-char-sequence >
" q-char-sequence "
h-char-sequence:
h-char
h-char-sequence h-char
h-char:
any member of the source character set except new-line and >
q-char-sequence:
q-char
q-char-sequence q-char
q-char:
any member of the source character set except new-line and "
pp-number:
digit
. digit
pp-number digit
pp-number identifier-nondigit
pp-number ' digit
pp-number ' nondigit
pp-number e sign
pp-number E sign
pp-number p sign
pp-number P sign
pp-number .
identifier:
identifier-nondigit
identifier identifier-nondigit
identifier digit
identifier-nondigit:
nondigit
universal-character-name
nondigit: one of
a b c d e f g h i j k l m
n o p q r s t u v w x y z
A B C D E F G H I J K L M
N O P Q R S T U V W X Y Z _
digit: one of
0 1 2 3 4 5 6 7 8 9
preprocessing-op-or-punc: one of
{ } [ ] # ## ( )
<: :> <% %> %: %:%: ; : ...
new delete ? :: . .*
+ - * / % ^ & | ~
! = < > += -= *= /= %=
^= &= |= << >> >>= <<= == !=
<= >= && || ++ -- , ->* ->
and and_eq bitand bitor compl not not_eq
or or_eq xor xor_eq
literal:
integer-literal
character-literal
floating-literal
string-literal
boolean-literal
pointer-literal
user-defined-literal
integer-literal:
binary-literal integer-suffixopt
octal-literal integer-suffixopt
decimal-literal integer-suffixopt
hexadecimal-literal integer-suffixopt
binary-literal:
0b binary-digit
0B binary-digit
binary-literal 'opt binary-digit
octal-literal:
0
octal-literal 'opt octal-digit
decimal-literal:
nonzero-digit
decimal-literal 'opt digit
hexadecimal-literal:
hexadecimal-prefix hexadecimal-digit-sequence
binary-digit:
0
1
octal-digit: one of
0 1 2 3 4 5 6 7
nonzero-digit: one of
1 2 3 4 5 6 7 8 9
hexadecimal-prefix: one of
0x 0X
hexadecimal-digit-sequence:
hexadecimal-digit
hexadecimal-digit-sequence 'opt hexadecimal-digit
hexadecimal-digit: one of
0 1 2 3 4 5 6 7 8 9
a b c d e f
A B C D E F
integer-suffix:
unsigned-suffix long-suffixopt
unsigned-suffix long-long-suffixopt
long-suffix unsigned-suffixopt
long-long-suffix unsigned-suffixopt
unsigned-suffix: one of
u U
long-suffix: one of
l L
long-long-suffix: one of
ll LL
character-literal:
encoding-prefixopt ' c-char-sequence '
encoding-prefix: one of
u8 u U L
c-char-sequence:
c-char
c-char-sequence c-char
c-char:
any member of the source character set except
the single-quote ', backslash \, or new-line character
escape-sequence
universal-character-name
escape-sequence:
simple-escape-sequence
octal-escape-sequence
hexadecimal-escape-sequence
simple-escape-sequence: one of
\' \" \? \\
\a \b \f \n \r \t \v
octal-escape-sequence:
\ octal-digit
\ octal-digit octal-digit
\ octal-digit octal-digit octal-digit
hexadecimal-escape-sequence:
\x hexadecimal-digit
hexadecimal-escape-sequence hexadecimal-digit
floating-literal:
decimal-floating-literal
hexadecimal-floating-literal
decimal-floating-literal:
fractional-constant exponent-partopt floating-suffixopt
digit-sequence exponent-part floating-suffixopt
hexadecimal-floating-literal:
hexadecimal-prefix hexadecimal-fractional-constant binary-exponent-part floating-suffixopt
hexadecimal-prefix hexadecimal-digit-sequence binary-exponent-part floating-suffixopt
fractional-constant:
digit-sequenceopt . digit-sequence
digit-sequence .
hexadecimal-fractional-constant:
hexadecimal-digit-sequenceopt . hexadecimal-digit-sequence
hexadecimal-digit-sequence .
exponent-part:
e signopt digit-sequence
E signopt digit-sequence
binary-exponent-part:
p signopt digit-sequence
P signopt digit-sequence
sign: one of
+ -
digit-sequence:
digit
digit-sequence 'opt digit
floating-suffix: one of
f l F L
string-literal:
encoding-prefixopt " s-char-sequenceopt "
encoding-prefixopt R raw-string
s-char-sequence:
s-char
s-char-sequence s-char
s-char:
any member of the source character set except
the double-quote ", backslash \, or new-line character
escape-sequence
universal-character-name
raw-string:
" d-char-sequenceopt ( r-char-sequenceopt ) d-char-sequenceopt "
r-char-sequence:
r-char
r-char-sequence r-char
r-char:
any member of the source character set, except
a right parenthesis ) followed by the initial d-char-sequence
(which may be empty) followed by a double quote ".
d-char-sequence:
d-char
d-char-sequence d-char
d-char:
any member of the basic source character set except:
space, the left parenthesis (, the right parenthesis ), the backslash \,
and the control characters representing horizontal tab,
vertical tab, form feed, and newline.
boolean-literal:
false
true
pointer-literal:
nullptr
user-defined-literal:
user-defined-integer-literal
user-defined-floating-literal
user-defined-string-literal
user-defined-character-literal
user-defined-integer-literal:
decimal-literal ud-suffix
octal-literal ud-suffix
hexadecimal-literal ud-suffix
binary-literal ud-suffix
user-defined-floating-literal:
fractional-constant exponent-partopt ud-suffix
digit-sequence exponent-part ud-suffix
hexadecimal-prefix hexadecimal-fractional-constant binary-exponent-part ud-suffix
hexadecimal-prefix hexadecimal-digit-sequence binary-exponent-part ud-suffix
user-defined-string-literal:
string-literal ud-suffix
user-defined-character-literal:
character-literal ud-suffix
ud-suffix:
identifier