x = nan  : max(x, 0.0) = 0.0     max(0.0, x) = nan
x = -2.0 : max(x, 0.0) = 0.0     max(0.0, x) = 0.0
x = 0.0  : max(x, 0.0) = 0.0     max(0.0, x) = 0.0
x = -0.0 : max(x, 0.0) = 0.0     max(0.0, x) = -0.0
