column generation with c++

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Kechen Ouyang

January 17, 2022 14:12

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I'm trying to use column generating with gurobi and c++. I encounter some problem when adding a new variable.

I first create a new column:

and then add a new variable:

There is something wrong with the addvar, but I don't know what the reason is. Is anyone can help me? Thank you!

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  Mario Ruthmair

  • Gurobi Staff

  January 18, 2022 13:59

  Hi Kechen,

  What exactly is the error message you get?

  In addVar() you use NULL for a string argument (name). Since the name parameter is optional, you can just skip it.

  Best regards,
  Mario

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