stl.bit2hex (arity 3)

hex[:(n+3)/4] = bit[:n]

n is a size-constant, hex is a hex.vec (n+3)/4, bit is a bit.vec n.

Signature

def bit2hex n, hex, bit { ... }

Defined in casting.fj — lines 22–25 (view on GitHub).

Complexity

• Time: n(1.25@-1)

• Space: n(1.25@+2)

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

Source

Click to view the macro body

def bit2hex n, hex, bit {
    hex.zero (n+3)/4, hex
    rep(n, i) bit.exact_xor hex+(i/4)*dw+dbit+(i%4), bit+i*dw
}

Depends on

• hex.zero/2

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