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c++variablesreference

Reference Variables In C++

I need assistance in understanding why reference variables are used in C++. The reference variables points to other variables since they are an alias of other variable We are able to create

int x = 10;
int y = x;

Why do we use it? It serves the same purpose as a reference. I'm learning C++ as a beginner. Please assist in figuring out why we chose &y = x rather than y = x for the preceding solution.

Solution

  • The difference is following:

    int x = 10;
int y = x;
y = 5; // After this line x == 10

int& z = x;
z = 5; // After this line x == 5