如何在C ++ API中使用IloCplex :: addMIPStart

Question

I am trying to use IloCplex::addMIPStart in C++ CPLEX Concert technology as follows:

IloCplex::MIPStartEffort effort = CPX_MIPSTART_SOLVEFIXED ;
cplex.addMIPStart(Y, Y_VAL,effort);

Unfortunately I face with the following error:

I have also tried writing IloCplex::MIPStartEffort effort = MIPStartSolveFixed ; but then it says identifier "MIPStartSolveFixed" is undefined .

According to

https://www.ibm.com/support/knowledgecenter/SSSA5P_12.8.0/ilog.odms.cplex.help/refcppcplex/html/classes/IloCplex.html#method_addMIPStart

and

https://www.ibm.com/support/knowledgecenter/SSSA5P_12.8.0/ilog.odms.cplex.help/refcppcplex/html/enumerations/IloCplex_MIPStartEffort.html?view=kc

at least one of them should work without producing errors. Any suggestions?

Answer 1

The correct syntax is as follows:

IloCplex::MIPStartEffort effort = IloCplex::MIPStartSolveFixed;

Notice the extra IloCplex:: in front of MIPStartSolveFixed .