func math/big.karatsubaSub

3 uses

	math/big (current package)
		nat.go#L255: func karatsubaSub(z, x nat, n int) {
		nat.go#L361: 		karatsubaSub(z[n2:], p, n)
		nat.go#L550: 	karatsubaSub(z[n2:], p, n) // s == -1 for p != 0; s == 1 for p == 0