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I am seeing ^0 in the code base.
Example:
type stat struct {
...
min int64
...
}
newStat := stat{min: ^0}
What does ^0 mean?
941
A zero value struct is simply a struct variable where each key's value is set to their respective zero value. This article is part of the Structs in Go series. We can create a zero value struct using the var statement to initialize our struct variable.
Zero is a number which quantifies a count or an amount of null size. In most cultures, 0 was identified before the idea of negative things (i.e., quantities less than zero) was accepted. As a value or a number, zero is not the same as the digit zero, used in numeral systems with positional notation.
The zero value is: 0 for numeric types, false for the boolean type, and. "" (the empty string) for strings.
According to the docs:
^x bitwise complement is m ^ x with m = "all bits set to 1" for
unsigned x and m = -1 for signed x
It means that ^0 is the same as ~0 in other mainstream languages.
On a two's complement (which most of the programming languages adopt) the value of the complement of zero is -1 (on an signed data type). So this is a way to write:
newStat := stat{min: -1}
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