// It panics if t's Kind is not Complex64 or Complex128.
	OverflowComplex(x complex128) bool

	// OverflowFloat reports whether the float64 x cannot be represented by type t.
	// It panics if t's Kind is not Float32 or Float64.
	OverflowFloat(x float64) bool

	// OverflowInt reports whether the int64 x cannot be represented by type t.