clamp(-0.0, 0.0, 1.0) = +0.0
    clamp(-NaN, 0.0, 1.0) = 0.0
    clamp(NaN, 0.0, 1.0) = 0.0

    clamp(-0.0, -1.0, 1.0) = -0.0
    clamp(NaN, -1.0, 1.0) = -1.0
    clamp(-NaN, -1.0, 1.0) = -1.0

    max(NaN, 0.0) = 0.0
    max(-NaN, 0.0) = 0.0
    max(-0.0, 0.0) = 0.0