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Is there a way without using arrays to write the following with a loop:

cout<<"This variable c1 ="c1
cout<<"This variable c2 ="c2
cout<<"This variable c3 ="c3

for(i=1,i<8,i++)
cout<<"This variable c%d =",i<<**????**<<

This is obviously not what I Need to be done but is the easiest example I could think of with the same problem... So what I would like to do is change the variables in the loop, not the output!

EDIT: Thanks a lot for all the input, here is a bit more of the code to help illustrate my problem...Im Using Cplex with c++. The loop will not end at seven but when a stop criteria is met

static void  populatebyrow (IloModel model, IloNumVarArray x, IloRangeArray c)
{
    IloExpr c1(env);
    IloExpr c2(env);
    IloExpr c3(env);
    IloExpr c4(env);

    c.add(c1>=n);
    c.add(c2>=n); ...

    model.add(c);
}

I Want to add these expressions to an Array called c that will be an input for a model in cplex. Then after I get a result from Cplex I want to add an expression c(i) and solve it again... This until i get the values I want... IloExprArray could also be used somehow, but then I dont know how to add the expressions using this method:

for(i= 0,...)
{
    c7 +=x[i];
}
See Question&Answers more detail:os

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If I understand correctly, you are trying to create variable names dynamically. AFAIK this is not possible with C++.


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