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2.3.6 Pre-processing expressions
The operators !
, ==
, !=
, &&
and ||
are permitted in pre-processing expressions. Parentheses can be used for grouping in pre-processing expressions.
- pp-expression:
- pp-equality-expression
- pp-primary-expression:
- true
false
pp-identifier
( pp-expression )
- pp-unary-expression:
- pp-primary-expression
! pp-unary-expression
- pp-equality-expression:
- pp-equality-expression == pp-logical-and-expression
pp-equality-expression != pp-logical-and-expression
- pp-logical-and-expression:
- pp-unary-expression
pp-logical-and-expression && pp-unary-expression
- pp-logical-or-expression:
- pp-logical-and-expression
pp-logical-or-expression || pp-logical-and-expression