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GRBaddgenconstrMax
| int | GRBaddgenconstrMax ( | GRBmodel | *model, |
| const char | *name, | ||
| int | resvar, | ||
| int | nvars, | ||
| const int | *vars, | ||
| double | constant ) |
Add a new general constraint of type GRB_GENCONSTR_MAX to a model. Note that, due to our lazy update approach, the new constraint won't actually be added until you update the model (using GRBupdatemodel), optimize the model (using GRBoptimize), or write the model to disk (using GRBwrite).
A MAX constraint
states that the resultant
variable 
should be equal to the maximum of the operand variables
and the constant 
.
Return value:
A non-zero return value indicates that a problem occurred while adding the general constraint. Refer to the Error Code table for a list of possible return values. Details on the error can be obtained by calling GRBgeterrormsg.
Arguments:
model: The model to which the new general constraint should be added.
name: Name for the new general constraint. This argument can be NULL, in which case the constraint is given a default name.
resvar: The index of the resultant variable whose value will
be equal to the max of the other variables.
nvars: The number 
of operand variables over which the max will be taken.
vars: An array containing the indices of the operand variables
over which the max will be taken.
constant: An additional operand that allows you to include
a constant among the arguments of the max operation.
Example usage:
/* x5 = max(x1, x3, x4, 2.0) */
int ind[] = {1, 3, 4};
error = GRBaddgenconstrMax(model, "maxconstr", 5,
3, ind, 2.0);
