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C C++ interview questions

!!! C C++ interview questions !!!

When do use "const" reference arguments in function?



a) Using const protects you against programming errors that inadvertently alter data.
b) Using const allows function to process both const and non-const actual arguments, while a function without const in the prototype can only accept non constant arguments.
c) Using a const reference allows the function to generate and use a temporary variable appropriately.

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