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Memory leak in using a list of lists
someStruct->arrayMap = new std::list<BasisIndex>*[someStruct->mapSizeX];
for(int i=0; i<someStruct->mapSizeX; i++){
    someStruct->arrayMap[i] = new std::list<BasisIndex>[someStruct->mapSizeY];
}

struct SomeStruct{
    int mapSizeX;
    int mapSizeY;
    std::list<BasisIndex>** arrayMap;
};

someStruct->arrayMap[xVal][yVal].push_back(tempIndex);

for(it = someStruct->arrayMap[xVal][yVal].begin(); it != someStruct->arrayMap[xVal][yVal].end(); it++){
    ...
}

for(int x=0; x<someStruct->mapSizeX; x++){
    for(int y=0; y<someStruct->mapSizeY; y++){
        someStruct->arrayMap[x][y].clear();
        someStruct->arrayMap[x][y].~list();
    }
}

std::list<BasisIndex> ** temp = someStruct->arrayMap;
delete temp;

someStruct->arrayMap = new std::list<BasisIndex>*[someStruct->mapSizeX];
for(int i=0; i<someStruct->mapSizeX; i++){
    someStruct->arrayMap[i] = new std::list<BasisIndex>[someStruct->mapSizeY];
}

for (int i=0; i<someStruct->mapSizeX; i++){
    delete[] someStruct->arrayMap[i];
}
delete[] someStruct->arrayMap;