How can we use constraint in every individual element in an array in cplex?

Question

Why is my forall loop not working to apply an constraint to all the individual values stored in my variable. For eg: if there are 100 values stored under a variable k, how can I apply the constraint where each value is less than a certain constant.

Answer 1

 range r=1..100;
 
 int value[i in r]=2*i;
 
 dvar int k[r];
 
 maximize sum(i in r) k[i];
 subject to
 {
   forall(i in r) k[i]<=value[i];
 }
 
 assert forall(i in r) k[i]==2*i;

works fine