Reference topic (cont.) = "constant Reference"

Frequently cited points two points:

1 Initializing a const reference with a variable const int &a = b

2 Use literal constant Initialization Const Reference const int &m = ten;

#include  <iostream>using namespace std;void main () {    //Normal reference     int a = 10;    int &b = a;     printf ("B"%d\n ", b);             / /oft-quoted     int x = 20;    const int &y  = x; //frequently quoted    function: Let variables have   read-only properties  ; that cannot be modified by y  x             //commonly referenced initialization is divided into 2 cases     //(1) with variables   initialization   oft-referenced      {        int x1 = 30;         const int &y1 = x1;//using x1 variable to initialize   constant reference      }        //(2) Literals   initialization   constant reference      {        const int a = 40;         int &m = 41; //General reference   reference a literal   Do you have any memory address for the literal number? Answer: No                        //Compile Error                               const  int &m = 43;//c++ compiler allocates memory space                    }}

3 Const Reference Conclusion:

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Reference topic (cont.) = "constant Reference"