Variable names

[matbesancon]

From the C interface, columns in Cbc seem to have variable names, not sure they can be set after creation though.
In any case, when the problem is created with copy_to, names could be passed as well

[odow]

Is there a need for this? I think I punted because we always use Cbc with a cache, and that stores the names. Supporting names is really only needed for solvers in direct-mode.

Methods are here:

Cbc.jl/src/gen/libcbc_api.jl

Lines 41 to 47 in e028e26

	function Cbc_setColName(model, iColumn, name)
	ccall((:Cbc_setColName, libcbcsolver), Cvoid, (Ptr{Cbc_Model}, Cint, Cstring), model, iColumn, name)
	end
	function Cbc_setRowName(model, iRow, name)
	ccall((:Cbc_setRowName, libcbcsolver), Cvoid, (Ptr{Cbc_Model}, Cint, Cstring), model, iRow, name)
	end

Cbc.jl/src/gen/libcbc_api.jl

Lines 117 to 123 in e028e26

	function Cbc_getRowName(model, iRow, name, maxLength)
	ccall((:Cbc_getRowName, libcbcsolver), Cvoid, (Ptr{Cbc_Model}, Cint, Cstring, Cint), model, iRow, name, maxLength)
	end
	function Cbc_getColName(model, iColumn, name, maxLength)
	ccall((:Cbc_getColName, libcbcsolver), Cvoid, (Ptr{Cbc_Model}, Cint, Cstring, Cint), model, iColumn, name, maxLength)
	end

[matbesancon]

the use case is solving instances loaded from a file with Cbc, it would be useful to have access to the names (and have them set at copy_to time)