SymmetricMatrix.hpp
#pragma once #include<iostream> using namespace std; template<class T> class SymmetricMatrix{ public: SymmetricMatrix(int arry[][3],size_t n){ _arrySize = n*(n + 1) / 2; _arry = new int(_arrySize); size_t index = 0; for (int i = 0; i < n; ++i){ for (int j = 0; j < n; ++j){ if (i >= j){ _arry[index++] = arry[i][j]; } } } } T& Access(int row, int col){ if (row < col){ swap(row, col); } return _arry[row*(row+1)/2+col]; } private: T* _arry; size_t _arrySize; size_t _matrixLen; }; void test(){ int arr[3][3] = { { 0, 1, 2 },{ 1, 0, 2 },{ 2, 1, 0 } }; SymmetricMatrix<int> sm(arr,3); cout << sm.Access(1, 0) << endl; }
main.cpp
#include<iostream> #include"SymmetricMatrix.hpp" using namespace std; int main(){ test(); return 0; }
本文出自 “moLova” 博客,请务必保留此出处http://molova.blog.51cto.com/10594266/1709583
原文地址:http://molova.blog.51cto.com/10594266/1709583