Unary Operators

Syntax
UnaryExpression :
     not Expression
   | - Expression
   | ~ Expression

The unary operators are used to negate expressions. The unary - (minus) operator yields the negation of its numeric argument. The unary ~ (invert) operator yields the bitwise inversion of its integer argument. The unary not operator yields the inversion of its boolean argument.

Example:

let x: bool = not true # false
let y: i256 = -1  # -1
let y: i256 = ~1  # -2