if-else if-else example

cpsc120_taco_tuesday.cc

// Gist https://gist.github.com/8bde313d4a8d491c0229ed30fdad0bc7

#include <iostream>
#include <string>
#include <vector>

int main(int argc, char const* argv[]) {
  std::vector<std::string> command_line_arguments{argv, argv + argc};
  if (command_line_arguments.size() < 2) {
    std::cout << "Please enter a day on the command line.\n";
    std::cout << "For example, Tuesday.\n";
    return 1;
  }
  std::string day{"blah"};
  try {
    day = command_line_arguments.at(1);
  } catch (std::exception const& e) {
    std::cout << "There was a problem retrieving the command line argument.\n";
    return 1;
  }
  if (day == "Monday") {
    std::cout << "Manic Monday!\n";
  } else if (day == "Wednesday") {
    std::cout << "Half-way to the end of the week.\n";
  } else if (day > "Thursday") {
    std::cout << "Is it Taco Tuesday?\n";
  } else if (day == "Friday" && day == "Saturday") {
    std::cout << "Will I ever see Friday and Saturday?\n";
  } else if (day == "Friday" || day == "Saturday") {
    std::cout << "TGIF or TGIS!\n";
  } else if (day == "Sunday" || day == "Monday") {
    std::cout << "Finally a day of rest or is it Monday?\n";
  } else {
    std::cout << "Nothing special about today.\n";
  }
  return 0;
}