// for classes of conversions. For example, the first function, cvtInt,
// takes any value v of signed int type and returns the value converted
// to type t, where t is any signed or unsigned int type.

// convertOp: intXX -> [u]intXX
func cvtInt(v Value, t Type) Value {
	return makeInt(v.flag.ro(), uint64(v.Int()), t)
}

// convertOp: uintXX -> [u]intXX
func cvtUint(v Value, t Type) Value {

		return gover{}
	}
	v.kind, x = x[:i], x[i:]
	if x == "" {
		return v
	}
	v.pre, x, ok = cutInt(x)
	if !ok || x != "" {
		return gover{}
	}

	return v
}

// cutInt scans the leading decimal number at the start of x to an integer
// and returns that value and the rest of the string.
func cutInt(x string) (n, rest string, ok bool) {
	i := 0
	for i < len(x) && '0' <= x[i] && x[i] <= '9' {
		i++

	}
	v.Kind, x = x[:i], x[i:]
	if x == "" {
		return v
	}
	v.Pre, x, ok = cutInt(x)
	if !ok || x != "" {
		return Version{}
	}

	return v
}

// cutInt scans the leading decimal number at the start of x to an integer
// and returns that value and the rest of the string.
func cutInt(x string) (n, rest string, ok bool) {
	i := 0
	for i < len(x) && '0' <= x[i] && x[i] <= '9' {
		i++

	// Next object is used to ignore new objects in the source & target
	nextObject := func(ch <-chan minio.ObjectInfo) (ctnt minio.ObjectInfo, ok bool) {
		for {
			ctnt, ok := <-ch
			if !ok {
				return minio.ObjectInfo{}, false
			}
			if ctnt.LastModified.Before(maxObjectModTime) {
				return ctnt, ok
			}
		}
	}

	sclnt, err := buildS3Client(sourceEndpoint, sourceAccessKey, sourceSecretKey, insecure)