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C++ Pointers and References

bookIntroduction to References

A reference is an alias, or an alternative name, for an existing variable. It provides a way to access the value of a variable indirectly through another name. They do not have a memory address of their own. Instead they refer to the memory address of the variable they are referencing.

reference.h

reference.h

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int originalVariable = 42;
int& referenceVariable = originalVariable;

Now referenceVariable is an alias for originalVariable. The primary purpose of references is to simplify and make safe, more readable code and avoid unnecessary memory overhead.

Advantages of Reference

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Sektion 3. Kapitel 1

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bookIntroduction to References

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A reference is an alias, or an alternative name, for an existing variable. It provides a way to access the value of a variable indirectly through another name. They do not have a memory address of their own. Instead they refer to the memory address of the variable they are referencing.

reference.h

reference.h

copy

              
12

            
int originalVariable = 42;
int& referenceVariable = originalVariable;

Now referenceVariable is an alias for originalVariable. The primary purpose of references is to simplify and make safe, more readable code and avoid unnecessary memory overhead.

Advantages of Reference

question mark

What is false about the references?

Select the correct answer

Var alt klart?

Hvordan kan vi forbedre det?

Tak for dine kommentarer!

Sektion 3. Kapitel 1
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