bit.mul.mul_add_if

if flag: dst[:n] += src[:n] — conditional in-place add. flag is a bit.

Signature

def mul_add_if n, flag, dst, src @ end { ... }

Defined in bit/mul.fj — lines 78–82 (view on GitHub).

Complexity

• Time: n(8@+14)

• Space: n(8@+14)

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

Source

Click to view the macro body

def mul_add_if n, flag, dst, src @ end {
    ..if0 flag, end
    ..add n, dst, src
  end:
}

Depends on

• bit.add

• bit.if0/2

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