Go programming language specification
Constants
An untyped constant has a default type, which is the type with which the constant is implicitly converted in contexts where a typed value is required. By default, the type of the untyped constant is bool, rune, int, float64, complex128 or string, respectively, depending on whether it is a logical, runic, integer, floating-point, complex or string constant.
func Println(a ...interface{}) (n int, err error)
fmt.Println(math.MaxUint32)
math.MaxUint32 - , int , interface{}.
int - 32- 64- .
const (
MaxInt32 = 1<<31 - 1
MaxUint32 = 1<<32 - 1
)
MaxUint32 MaxInt32.
go env, , 32- , GOARCH="386".
32- int . . ,
fmt.Println(uint32(math.MaxUint32))