r = a - b
r, a and b may be aliases.
Asserts the result fits in r
. An upper bound on the number of limbs needed by r is @max(a.limbs.len, b.limbs.len) + 1
. The +1 is not needed if both operands are positive.
r = a - b
r, a and b may be aliases.
Asserts the result fits in r
. An upper bound on the number of limbs needed by r is @max(a.limbs.len, b.limbs.len) + 1
. The +1 is not needed if both operands are positive.