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Question 747
Swap Two Variables with References
Swap Two Variables with References
Write a function template swapValues(T& first, T& second) that exchanges the two values using a temporary variable. Do not call std::swap.
The parameters are REFERENCES, so the function changes the caller's own variables. If they were passed by value, the function would swap two private copies and the originals would stay the same. The tests swap two int variables holding 1 and 2 and print them separated by a space, then swap two std::string variables holding left and right and print them the same way.
Do NOT write a main function.
Expected Output:
2 1 right left
= newline. The output ends with a newline — print one after the last line.
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