// Go supports high precision values in
// numeric constants, and an untyped constant
// takes the type needed by its context.
// However, when assigned to a variable, or
// when operations are performed on it, then
// it may have an error.

package main

import "fmt"

func needInt(x int) int {
    return x * 10 + 1
}

func needFloat(x float64) float64 {
    return x * 0.1
}

func main() {
    const (
        Big   = 1 << 100
        Small = Big >> 99
    )

    // The first statement causes an overflow:
    // fmt.Println("Type: %T, Value: %v", Big, Big)
    // fmt.Println("Type: %T, Value: %v", Small, Small)

    fmt.Println(needInt(Small))
    fmt.Println(needFloat(Small))
    fmt.Println(needFloat(Big))

    // This, too, causes an overflow
    // fmt.Println(needInt(Big))
}