Pointers vs. References: When Should You Use Each for Variable Assignment?

When to Use Pointers vs. References for Remotely Assigning Variables

When passing a variable to a function for modification, two options are available: using a pointer or a reference. Both approaches grant access to the original variable and allow it to be updated within the function.

Pointers (func2)

Use pointers when you need to perform pointer arithmetic, such as stepping through an array element by element. Pointers also allow for the use of NULL-pointers, which may be necessary in certain situations.

References (func1)

In most cases, references are preferred over pointers. References provide a more straightforward and concise syntax, eliminating the need for dereferencing operators (* and &). They also prevent accidental null pointer assignments.

Recommendation

Generally, it is recommended to use references over pointers unless there is a specific need for pointer arithmetic or handling null pointers. References simplify code readability, reduce error potential, and provide a cleaner interface for passing and manipulating variables.

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