Chapter 40. Monoliths “Unstrung,” Part 4: std::string Redux

Difficulty: 6

In this Item, we enter the home stretch, and uncover a (more) modest and minimal edition of std::string.

JG Question

  1. Can string::erase be a nonmember function? Explain.

Guru Question

  1. Analyze the remaining member functions of std::string and demonstrate whether or not they can or should instead be nonmember functions. Justify your answers.

    1. replace

    2. copy and substr

    3. compare

    4. find family (find, find_*, and rfind)

Solution

Still More Operations That Can Be Nonmember Nonfriends

In this Item, we're in the home stretch, and the finish line is in sight. Only a few functions remain—and we'll see that all of them can be implemented as nonmember nonfriends:

  • erase (2—all but the “iter, iter” version) ...

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