func GBToByte(n interface{}) int64 {
	switch v := n.(type) {
	case int:
		return int64(v * 1000000000)
	case int32:
		return int64(v * 1000000000)
	case int64:
		return v * 1000000000
	}
	panic(fmt.Errorf("non-integer type %T for value", n))
}
func GBToByte(n interface{}) int64 {
	switch v := n.(type) {
	case int:
		return int64(v * 1000000000)
	case int32:
		return int64(v * 1000000000)
	case int64:
		return v * 1000000000
	}
	panic(fmt.Errorf("non-integer type %T for value", n))
}
func GBToByte ( n interface { } ) int64 { switch v := n . ( type ) { case int : return int64 ( v * 1000000000 ) case int32 : return int64 ( v * 1000000000 ) case int64 : return v * 1000000000 } panic ( fmt . Errorf ( " " , n ) ) }
// GBToByte returns n*1000000000.
//
// The output is returned as int64 - if another type is needed, it needs to be
// cast. Remember that int32 overflows at 2GB and uint32 will overflow at 4GB.
GBToByte returns n * 1000000000 . The output is returned as int64 - if another type is needed it needs to be cast . Remember that int32 overflows at 2GB and uint32 will overflow at 4GB .