[Cbc] one problem when I call the CBC library in my c++ code

[Liu, Lu]

Hi,

I am trying to solve a simple LP problem, I formulated the problem and convert it to MPS format and LP format. I use a free online solver CPLEX to solve it and also call the CBC command line using the MPS format, both solve with identical solution. however, when I call the CBC library in my c++ code and I load the problem to a matrix and use rowlb, rowub to specify the constraints, it seems to treat the upper bound as an exact match, therefore it can not solve. I wonder if there is a way/function to call so I can say it is less or equal to the upper bound, as opposed to equal to the upper bound. Thanks!

Regards,
Lu

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