bitarray/map over bitarrays/map! for length 6399 @test map!(==, b, b1, b2) == map!(((x, y)->begin #= C:\buildkite-agent\builds\win2k22-amdci6-5\julialang\julia-master\julia-0c4003be4d\share\julia\test\bitarray.jl:1507 =# x == y end), b, b1, b2) == (b1 .== b2) == b