Originally posted by: banun

Hi,
I wrote the following function that creates a variable :
{
IloInt one,two;
one = val-radius;
two = val+radius;
IloIntVar var(env, one, two, ILOINT, name);

var.setName(name.c_str());

return var.getId()
}

radius and val are int,
name is string
the compiler complains :

no matching function for call to ‘IloIntVar::IloIntVar(IloEnv&, IloInt&, IloInt&, std::string&)’
candidates are:...

What's wrong with my function ?
Thanks
#CPLEXOptimizers
#DecisionOptimization

Originally posted by: RodrigoLinfati

try:

IloIntVar var(env, one, two, name);
#CPLEXOptimizers
#DecisionOptimization

Originally posted by: banun

I tried that, still the same message from the compiler :

no matching function for call to ‘IloIntVar::IloIntVar(IloEnv&, IloInt&, IloInt&, std::string&)’
candidates are...
#CPLEXOptimizers
#DecisionOptimization

Originally posted by: RodrigoLinfati

try:

IloIntVar var(env, one, two, name*.c_str()*);
#CPLEXOptimizers
#DecisionOptimization

Originally posted by: banun

I get :

error: expected primary-expression before ‘.’ token
error: expected primary-expression before ‘)’ token

another question - one and two are actually like constraints here ?
meaning, that variable I'm creating here is greater than one and smaller than two, and it's an integer. Is that correct ?

Thanks
#CPLEXOptimizers
#DecisionOptimization

Originally posted by: RodrigoLinfati

IloIntVar var(env, one, two, name.c_str() );

one is the lower bound of the variable, the minimal value
two is the upper bound of the variable, tha maximal value
name is a "C string", ie, an array of char.
#CPLEXOptimizers
#DecisionOptimization

Originally posted by: banun

thanks, it works now.

regarding my second question :

is IloIntVar var(env, one, two, name.c_str() ); equals to :

creating var like that :
IloBoolVar var(env);
var.setName(name.c_str());

and afterwards creating a constraint for it :

someshing like:

add(var >= one);
add(var <= two);
?
#CPLEXOptimizers
#DecisionOptimization