Originally posted by: Girish Dey

Hi...

 I am trying to create a boolean matrix in c++ concert technology. I have defined 
typedef IloArray<IloBoolArray> BoolMatrix;
after that I declared it:
BoolMatrix Assigned(env);
but while trying input data by file >> Assigned, it is showing error (no operator ">>" matches these operands). Please help me to come out of this error.

You can use the undocumented macro ILOARRAY_INPUT_OPERATOR to allow this sort of input (note that bools are provided as "0" and "1", not "false" and "true"):

#include <sstream>
#include <iostream>
#include <ilcplex/ilocplex.h>

ILOARRAY_INPUT_OPERATOR(IloBoolArray, IloArray<IloBoolArray>)

int
main(void)
{
   std::stringstream ints("[1,2,3,4,5]");
   std::stringstream ints2D("[[1,2,3,4,5],[6,7,8,9]]");
   std::stringstream bools("[1,1,0,1,0]");
   std::stringstream bools2D("[[1,1,0,1,0],[0,1,0]]");

   IloEnv env;
   IloIntArray intArray(env);
   ints >> intArray;
   std::cout << intArray << std::endl;

   IloArray<IloIntArray> intArray2D(env);
   ints2D >> intArray2D;
   std::cout << intArray2D << std::endl;

   IloBoolArray boolArray(env);
   bools >> boolArray;
   std::cout << boolArray << std::endl;

   IloArray<IloBoolArray> boolArray2D(env);
   bools2D >> boolArray2D;
   std::cout << boolArray2D << std::endl;

   env.end();
   return 0;
}