（）运算符和＆lt; <operator lead =“”to =“”memory =“”leak =“”

Question

=“”

以下代码引出内存泄漏（使用xcode 7.0.1和mac os 10.11测试）。泄漏位于以下行：std::cout << m(0,0) << std::endl;有人可以解释原因吗？当我删除此行时，泄漏消失。我想它与（）运算符的重载有关，但我不知道我做错了什么。

Matrix.h：

template<typename T>
class Matrix {

public:
    Matrix(unsigned int rows, unsigned int columns, T initValue)
    : size_(rows*columns), columns_(columns), rows_(rows) {
        data_ = new T[size_];
        for (unsigned int i = 0; i < size_; ++i) {
            data_[i] = initValue;
        }
    }

    Matrix(unsigned int rows, unsigned int columns)
    : columns_(columns), rows_(rows) {
        data_ = new T[size_];
        for (unsigned int i = 0; i < size_; ++i) {
            data_[i] = 0;
        }
    }

    ~Matrix() {
        delete [] data_;
    }

    T& operator()(const unsigned int &row, const unsigned int &column) {
        assert(row < rows_ && column < columns_);
        return data_[row * columns_ + column];
    }

    T operator()(const unsigned int &row, const unsigned int &column) const {
        assert(row < rows_ && column < columns_);
        return data_[row * columns_ + column];
    }

private:
    T *data_;
    unsigned int size_, columns_, rows_;

};

MAIN.C：

int main(int argc, char** argv)
{
    Matrix<double> m( 2,2, 1.0 );
    std::cout << m(0,0) << std::endl;
}