Difference between revisions of "Operator precedence"
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| 0 || Range separator || <code>..</code> || Not a real operator, hardwired into syntax at specific points. | | 0 || Range separator || <code>..</code> || Not a real operator, hardwired into syntax at specific points. | ||
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Revision as of 12:47, 3 March 2018
Priority | Description | Operators | Comments |
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15 | Template instantiation | ! |
Top-level , in rhs expression treated specially. Cannot be chained.
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14.5 | Lambda abstraction | => |
Not a real operator, occurs twice, this is binding power to the left. |
14 | Postfix operators | . ++ -- ( [ |
( and [ treat top-level , in rhs expression specially and require balanced ) or ] in order to be completed.
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13 | Power operator | ^^ |
Right-associative. |
12 | Unary operators | & ++ -- * + - ! ~ cast |
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11 | Multiplicative operators | * / % |
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10 | Additive operators | + - ~ |
Binary ~ is the array concatenation operator.
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9 | Bit shift operators | << >> >>> |
>>> is the always logical shift operator.
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6a | Comparison operators | == != > < >= <= !> !< !>= !<= <> !<> <>= !<>= in !in is !is
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Unordered with respect to bitwise operators. Cannot be chained. |
8b | Bitwise And | & |
Unordered with respect to comparison operators. |
7b | Bitwise Xor | ^ |
Unordered with respect to comparison operators. |
6b | Bitwise Or | | |
Unordered with respect to comparison operators. |
5 | Logical And | && |
Short-circuit. |
4 | Logical Or | || |
Short-circuit. |
3 | Conditional operator | ? : |
Right-associative. |
2 | Assignment operators | = ^^= *= /= %= += -= ~= <<= >>= >>>= &= |= ^=
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Right-associative. |
1.5 | Lambda abstraction | => |
Not a real operator, occurs twice, this is binding power to the right. |
1 | Comma operator | , |
Not to be confused with other uses of , , though their precedence is the same.
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0 | Range separator | .. |
Not a real operator, hardwired into syntax at specific points. |