Check if column exists

[vitornesello]

In the function that checks if column exists:
Will it work for non-binary variables?
Also, maybe it should be in a separate function.. We might have an isequal(varconstr, varconstr)

In this function :

Coluna.jl/src/MathProg/formulation.jl

Line 177 in 8f7d105

function setprimalsol!(

[guimarqu]

setprimalsol! does not work with binary variables... Like what you suggest, I think I will put the column checker as a separate method exists and let the algorithm decide if we allow duplicate columns or not.