Question

我目前正在为运筹学中的任务实施this model，我发现了一些我认为与变量定义有关的问题。我阅读并观看了很多关于如何实现3D矩阵的参考资料，但我仍然遇到同样的错误，不知道我还能做些什么来解决它。

我得到的错误是this one：

Empty Handle in IloArray::operator[]
ConcertTest: /opt/ibm/ILOG/CPLEX_Studio1261/concert/include/ilconcert/iloenv.h:2232: 
X& IloArray<X>::operator[](IloInt) [with X= IloNumArray; 
IloInt = long int]: Assertion '(_impl) || (std:: cerr << "Empty Handle in IloArray::operator[]" 
<< std:: endl, ilo_stop_assert())' faield. 
Aborted (core dumped)

Process returned 134 (0x86) execution time: 0.094 s

变量的代码如下：

using namespace std;

int main()
{
    IloEnv env;
    try{
        IloModel model(env);
        IloExpr obj(env);
        IloRangeArray constraints(env);

        // Defining the type of arrays

        typedef IloArray< IloArray<IloNumVarArray> > IloNumVarArray3;
        typedef IloArray< IloArray<IloNumArray> > IloNumArray3;
        typedef IloArray<IloNumArray> IloNumArray2;

        // Creating the variables

        IloInt N = 10;
        IloInt J = 10;
        IloInt W = 3;


        IloNumVarArray3 x_iwj(env, N);

        IloNumArray3 c_iwj(env, N);
        IloNumArray3 ce_iwj(env, N);
        IloNumArray3 cb_iwj(env, N);

        IloNumArray2 cap_iw(env, N);
        IloNumArray dem_j(env, J);

        // Definig the variables

        for(int i = 0; i < N; i++){
            for(int w = 0; w < W; w++){
                x_iwj[i][w].add(IloNumVarArray(env, N, 0, IloInfinity, ILOINT));
                c_iwj[i][w] = IloNumArray(env, N);
                ce_iwj[i][w] = IloNumArray(env, N);
                cb_iwj[i][w] = IloNumArray(env, N);
                for(int j = 0; j < J; j++){
                    if(i == 0 && w == 2){
                        c_iwj[i][w][j] = 100;
                    }
                    else{
                        c_iwj[i][w][j] = 10; //rand() % 10;
                    }
                    ce_iwj[i][w][j] = 0.5; //rand() % 1;
                    cb_iwj[i][w][j] = 0.4; //rand() % 1;
                }
            }
        }

        for(int i = 0; i < N; i++){
            cap_iw[i] = IloNumArray(env, N);
            for(int w = 0; w < W; w++){
                cap_iw[i][w] = 150; //rand() % 150;
            }
        }

        for(int j = 0; j < J; j++){
            dem_j[j] = 480; //rand() % 500;
        }

        ...

它也可能与代码的其他部分有关，所以如果有必要我可以把它放在这里。

提前非常感谢！

Concert CPLEX C ++中3D矩阵的问题

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