broadcasting a JuMParray

[bbrunaud]

Cannot apply a vectorized operation to a JuMParray

julia> @variable(m, x[1:5, [:green, :blue]])
2-dimensional JuMPArray{VariableRef,2,...} with index sets:
    Dimension 1, 1:5
    Dimension 2, Symbol[:green, :blue]
And data, a 5×2 Array{VariableRef,2}:
 x[1,green]  x[1,blue]
 x[2,green]  x[2,blue]
 x[3,green]  x[3,blue]
 x[4,green]  x[4,blue]
 x[5,green]  x[5,blue]

julia> set_lower_bound.(x[:,:blue], 0)
ERROR: ArgumentError: broadcasting requires an assigned BroadcastStyle
Stacktrace:
 [1] copy(::Base.Broadcast.Broadcasted{Base.Broadcast.Unknown,Tuple{UnitRange{Int64}},typeof(setlowerbound),Tuple{JuMPArray{VariableRef,1,Tuple{UnitRange{Int64}},Tuple{Dict{Int64,Int64}}},Int64}}) at ./broadcast.jl:735
 [2] materialize(::Base.Broadcast.Broadcasted{Base.Broadcast.Unknown,Nothing,typeof(setlowerbound),Tuple{JuMPArray{VariableRef,1,Tuple{UnitRange{Int64}},Tuple{Dict{Int64,Int64}}},Int64}}) at ./broadcast.jl:724
 [3] top-level scope at none:0

julia> set_lower_bound.(x, 0)
ERROR: ArgumentError: broadcasting requires an assigned BroadcastStyle
Stacktrace:
 [1] copy(::Base.Broadcast.Broadcasted{Base.Broadcast.Unknown,Tuple{UnitRange{Int64},Array{Symbol,1}},typeof(setlowerbound),Tuple{JuMPArray{VariableRef,2,Tuple{UnitRange{Int64},Array{Symbol,1}},Tuple{Dict{Int64,Int64},Dict{Symbol,Int64}}},Int64}}) at ./broadcast.jl:735
 [2] materialize(::Base.Broadcast.Broadcasted{Base.Broadcast.Unknown,Nothing,typeof(setlowerbound),Tuple{JuMPArray{VariableRef,2,Tuple{UnitRange{Int64},Array{Symbol,1}},Tuple{Dict{Int64,Int64},Dict{Symbol,Int64}}},Int64}}) at ./broadcast.jl:724
 [3] top-level scope at none:0