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The precedence ranking of an operator determines the order in which it is
evaluated in an expression.
The levels of ranking are: | Precedence | Operators |
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| highest | [ ] | | . | NOT, BNOT | | . | <<, >>, BAND, BOR | | . | *, /, MOD, AND | | . | +, -, OR | | lowest | <, <=, =, >, >=, <> |
Operators of highest precedence are evaluated first. For example,
since * ranks above +, the following expressions are evaluated
identically:
(x + y * z) and (x + (y * z))
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When operators in a sequence have equal precedence, evaluation proceeds
from left to right. For example, each of the following expressions are
evaluated identically:
(x + y + z) and ((x + y) + z)
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