Lesson 4 - References in C++
So far, we've talked about the two "types" that C++ has. These were values (these include types such as int, char, string, etc.) and pointers. Unlike C, C++ introduces another group of types - references. This is kind of a transition between pointers and values.
A reference, like a pointer, is used to refer to data in memory. There are two fundamental differences between a pointer and a reference. First, a reference, unlike a pointer, is treated as a classical variable or object. Second, a reference always refers to the same data, we can never redirect it somewhere else into memory. Thus, it can be said that a reference is such a more convenient constant pointer. It's declared using the
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C++ adds another type of a variable - reference. In this article we'll talk about how to work with them.
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