Problem

Given the following typical definition of swap § 13.3 (p. 517), determine which version of...

Given the following typical definition of swap § 13.3 (p. 517), determine which version of swap is used if mem1 is a string. What if mem1 is an int? Explain how name lookup works in both cases.

void swap(T v1, T v2){    using std::swap;    swap(v1.mem1, v2.mem1);    // swap remaining members of type T}

§ 13.3 (p. 517)

Exercise 29

Explain why the calls to swap inside swap(HasPtr&, HasPtr&) do not cause a recursion loop.

Exercise 30

Write and test a swap function for your valuelike version of HasPtr. Give your swap a print statement that notes when it is executed.

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