bit.sub

dst[:n] -= src[:n]
dst,src are bit[:n]

Signature

def sub n, dst, src @ carry { ... }

Defined in bit/math.fj — lines 91–99 (view on GitHub).

Complexity

• Time: n(8@+16)

• Space: n(8@+16)

See the complexity glossary for what @, w, dw, dbit, n mean.

Depends on

• bit.bit/0

• bit.not/2

• bit.one/1

• stl.skip

Used by

• bit.div.div_step

• bit.div_loop