Go会修复或共享C的危险隐式->无符号转换吗？

Question

In "21st Century C", Ben Klemens describes how C automatically converts signed numbers to unsigned, in comparison expressions for example. Does Go share this same hazardous behavior, or does Go approach it differently?

Answer 1

There are no implicit conversions in Go. In order to compare or do arithmetic with two values of different types, you must do manual and explicit type conversion.

a := 3          // numerical constant 3 defaults to int
b := uint(2)
c := a < b      // compiler error
d := a < int(b) // OK

Answer 2

Go uses only explicit type conversions for all the operations including comparison.

var a uint64
var b int64

a = 1
b = 1
if a == b {
    fmt.Println("Equal")
}

This snippet is going to cause an error:

tmp/sandbox428200464/main.go:13: invalid operation: a == b (mismatched types uint64 and int64)

To do the comparison you must cast the variables to the same type explicitly:

if int64(a) == b {...}

So, definitely yes , it is fixed if one can say so.

Playgound for the snippet.