[julia-users] encode 4 x 1 byte into a one 4 bytes variable

[J Luis]

Hi, 

How can I encode  4 one byte variable, lets say 

julia> UInt8[1 2 5 255]
1x4 Array{UInt8,2}:
 0x01  0x02  0x05  0xff

into a single variable with 4 bytes length?

Thanks.