Operator Precedence
The following table shows how Spice prioritizes the supported operators. The list is sorted top to bottom in descending precedence.
Precedence table¶
| Precedence | Operator | Description | Associativity | Modifying |
|---|---|---|---|---|
| 1 | a() | Function/procedure call | left to right | no |
| 1 | :: | Scope access operator | left to right | no |
| 1 | . | Member access operator | left to right | no |
| 1 | a[] | Subscript operator | left to right | no |
| 1 | a++ | Postfix increment operator | left to right | yes |
| 1 | a-- | Postfix decrement operator | left to right | yes |
| 2 | - | Unary minus operator | right to left | no |
| 2 | ++a | Prefix increment operator | right to left | yes |
| 2 | --a | Prefix decrement operator | right to left | yes |
| 2 | ! | Logical not operator | right to left | no |
| 2 | ~ | Bitwise not operator | right to left | no |
| 2 | * | Indirection operator | right to left | no |
| 2 | & | Address-of operator | right to left | no |
| 3 | cast<type>() | Type cast operator | right to left | no |
| 4 | * | Multiplication | left to right | no |
| 4 | / | Division | left to right | no |
| 4 | % | Remainder | left to right | no |
| 5 | + | Addition | left to right | no |
| 5 | - | Subtraction | left to right | no |
| 6 | << | Bitwise left shift operator | left to right | no |
| 6 | >> | Bitwise right shift operator | left to right | no |
| 7 | < | Relational less operator | left to right | no |
| 7 | > | Relational greater operator | left to right | no |
| 7 | <= | Relational less equal operator | left to right | no |
| 7 | >= | Relational greater equal operator | left to right | no |
| 8 | == | Equal operator | left to right | no |
| 8 | != | Not equal operator | left to right | no |
| 9 | & | Bitwise and operator | left to right | no |
| 10 | ^ | Bitwise or operator | left to right | no |
| 11 | | | Bitwise or operator | left to right | no |
| 12 | && | Logical and operator | left to right | no |
| 13 | || | Logical or operator | left to right | no |
| 14 | a?b:c | Ternary conditional | right to left | no |
| 15 | = | Assign operator | right to left | yes |
| 15 | += | Compound sum assign operator | right to left | yes |
| 15 | -= | Compound difference assign operator | right to left | yes |
| 15 | *= | Compound product assign operator | right to left | yes |
| 15 | /= | Compound quotient assign operator | right to left | yes |
| 15 | %= | Compound remainder assign operator | right to left | yes |
| 15 | <<= | Compound shift left assign operator | right to left | yes |
| 15 | >>= | Compound shift right assign operator | right to left | yes |
| 15 | &= | Compound bitwise and assign operator | right to left | yes |
| 15 | |= | Compound bitwise or assign operator | right to left | yes |
| 15 | ^= | Compound bitwise xor assign operator | right to left | yes |
| 16 | , | Comma | left to right | no |