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#include <stdio.h> | |
#include <iostream> | |
using namespace std; | |
int main() | |
{ | |
int a = 3; | |
int b = 4; | |
int* pointerToA = &a; | |
int* pointerToB = &b; | |
int* p = pointerToA; | |
p = pointerToB; | |
printf("%d %d %d\n", a, b, *p); // Prints 3 4 4 | |
int& referenceToA = a; | |
int& referenceToB = b; | |
int& r = referenceToA; | |
cout<<"&referenceToA:"<<&referenceToA<<",&a:"<<&a<<",&referenceToB:"<<&referenceToB<<",&b:"<<&b<<",&r:"<<&r<<",r:"<<r<<endl; | |
r = referenceToB; | |
cout<<"&referenceToA:"<<&referenceToA<<",&a:"<<&a<<",&referenceToB:"<<&referenceToB<<",&b:"<<&b<<",&r:"<<&r<<",r:"<<r<<endl; | |
referenceToA = referenceToB; | |
cout<<"&referenceToA:"<<&referenceToA<<",&a:"<<&a<<",&referenceToB:"<<&referenceToB<<",&b:"<<&b<<",&r:"<<&r<<",r:"<<r<<endl; | |
//cannot declare pointer to 'int&' | |
//int& *pointerToReferenceToA = &referenceToA; | |
//cout<<"pointerToReferenceToA:"<<pointerToReferenceToA<<"*pointerToReferenceToA:"<<*pointerToReferenceToA<<endl; | |
//invalid initialization of reference of type 'int&' from expression of type 'int*' | |
//int& referenceToPointer = pointerToA; | |
return 0; | |
} |
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