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Unlock the power of references and parameter passing in C++! This chapter clarifies the crucial differences between call by value (copying data) and call by reference (using aliases or pointers). Learn how to efficiently modify variables directly within functions using references and pointers, and discover the benefits of const references for performance and data safety when working with large objects.
Parameter passing to a function is extremely important in all programming languages. The desire to keep the passed parameter intact forced the compiler designers to add various keywords to the programming languages.
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