Function main

07.09-mapSortBooksByIsbn3/main.cpp:47–73

#endif

int main()
{
#if(__cpp_generic_lambdas >= 201707)
  const Book effectiveCpp{"Effective C++", "978-3-16-148410-0"};
  const Book fpCpp{"Functional Programming in C++",
                   "978-3-20-148410-0"};

  const Magazine ix{"iX", "978-3-16-148410-0"};
  const Magazine overload{"overload", "978-3-20-148410-0"};

  const Price normal{34.95};
  const Price reduced{24.95};

  MapSortedByIsbn<Book, Price> book2Price{
    {effectiveCpp, reduced}, {fpCpp, normal}};
  MapSortedByIsbn<Magazine, Price> magazine2Price{
    {ix, reduced}, {overload, normal}};

  for(const auto& [k, v] : book2Price) {
    printf(
      "%s %s %f\n", k.title.c_str(), k.isbn.c_str(), v.amount);
  }

#else
#  pragma message("not supported")
#endif
}