aoc_lib: parse arguments into a Arguments struct

This contains the input ifstream, the file name as a string, and the
input type: EXAMPLE (for `*example*`), MAIN (for `input.txt`), or OTHER.

Author: yut23

2023/src/day01.cpp

@@ -32,7 +32,7 @@ int parse_digit(std::string match, const bool reverse = false) {
 }
 
 int main(int argc, char **argv) {
-    std::ifstream infile = aoc::parse_args(argc, argv);
+    std::ifstream infile = aoc::parse_args(argc, argv).infile;
 
     // part 1
     const std::string digits{"123456789"};

2023/src/day02.cpp

@@ -14,7 +14,7 @@
 #include <string>   // for string, getline
 
 int main(int argc, char **argv) {
-    std::ifstream infile = aoc::parse_args(argc, argv);
+    std::ifstream infile = aoc::parse_args(argc, argv).infile;
 
     int part_1 = 0, part_2 = 0;
     std::string line;

2023/src/day03.cpp

@@ -118,7 +118,7 @@ std::istream &operator>>(std::istream &is, Grid &grid) {
 } // namespace aoc::day03
 
 int main(int argc, char **argv) {
-    std::ifstream infile = aoc::parse_args(argc, argv);
+    std::ifstream infile = aoc::parse_args(argc, argv).infile;
 
     aoc::day03::Grid grid;
     infile >> grid;

2023/src/day04.cpp

@@ -14,7 +14,7 @@
 #include <string>   // for string, getline
 
 int main(int argc, char **argv) {
-    std::ifstream infile = aoc::parse_args(argc, argv);
+    std::ifstream infile = aoc::parse_args(argc, argv).infile;
 
     // read file line-by-line
     int part_1 = 0, part_2 = 0;

2023/src/day05.cpp

@@ -65,7 +65,7 @@ long part_2(const std::vector<long> &seeds,
 }
 
 int main(int argc, char **argv) {
-    std::ifstream infile = aoc::parse_args(argc, argv);
+    std::ifstream infile = aoc::parse_args(argc, argv).infile;
 
     // read input
     auto seeds = aoc::day05::read_seeds(infile);

2023/src/day06.cpp

@@ -83,7 +83,7 @@ long part_2(const std::vector<int> &times, const std::vector<int> &records) {
 int main(int argc, char **argv) {
     std::vector<int> times, records;
     {
-        std::ifstream infile = aoc::parse_args(argc, argv);
+        std::ifstream infile = aoc::parse_args(argc, argv).infile;
         aoc::day06::parse(infile, times, records);
     }
 

2023/src/day07.cpp

@@ -31,7 +31,7 @@ int part_2(std::vector<aoc::day07::Hand> hands) {
 }
 
 int main(int argc, char **argv) {
-    std::ifstream infile = aoc::parse_args(argc, argv);
+    std::ifstream infile = aoc::parse_args(argc, argv).infile;
 
     using namespace aoc::day07;
     auto hands = read_hands(infile);

2023/src/day08.cpp

@@ -96,7 +96,7 @@ long part_2(const std::string &directions, const aoc::day08::Network &network) {
 }
 
 int main(int argc, char **argv) {
-    std::ifstream infile = aoc::parse_args(argc, argv);
+    std::ifstream infile = aoc::parse_args(argc, argv).infile;
 
     std::string directions;
     infile >> directions;

2023/src/day09.cpp

@@ -16,7 +16,7 @@
 // IWYU pragma: no_include <functional>  // for identity (ranges::any_of)
 
 int main(int argc, char **argv) {
-    std::ifstream infile = aoc::parse_args(argc, argv);
+    std::ifstream infile = aoc::parse_args(argc, argv).infile;
 
     // read file line-by-line
     std::string line;

2023/src/day10.cpp

@@ -15,7 +15,7 @@
 #include <iostream> // for cout, cerr
 
 int main(int argc, char **argv) {
-    std::ifstream infile = aoc::parse_args(argc, argv);
+    std::ifstream infile = aoc::parse_args(argc, argv).infile;
 
     using namespace aoc::day10;
     using aoc::Pos;

2023/src/day11.cpp

@@ -22,7 +22,7 @@ long sum_paths(const std::vector<aoc::Pos> &galaxies) {
 }
 
 int main(int argc, char **argv) {
-    std::ifstream infile = aoc::parse_args(argc, argv);
+    std::ifstream infile = aoc::parse_args(argc, argv).infile;
 
     std::vector<aoc::Pos> galaxies = aoc::day11::read_image(infile);
 

2023/src/day12.cpp

@@ -11,7 +11,7 @@
 #include <iostream> // for cout, cerr
 
 int main(int argc, char **argv) {
-    std::ifstream infile = aoc::parse_args(argc, argv);
+    std::ifstream infile = aoc::parse_args(argc, argv).infile;
 
     auto records = aoc::day12::read_records(infile);
 

2023/src/day13.cpp

@@ -17,7 +17,7 @@ void print_grid(std::ostream &os, const aoc::day13::Grid &grid) {
 }
 
 int main(int argc, char **argv) {
-    std::ifstream infile = aoc::parse_args(argc, argv);
+    std::ifstream infile = aoc::parse_args(argc, argv).infile;
 
     auto grids = aoc::day13::read_grids(infile);
 

2023/src/day14.cpp

@@ -13,7 +13,7 @@
 // IWYU pragma: no_include <functional>  // for hash (unordered_map)
 
 void solve(int argc, char **argv, bool print) {
-    std::ifstream infile = aoc::parse_args(argc, argv);
+    std::ifstream infile = aoc::parse_args(argc, argv).infile;
 
     std::unordered_map<std::vector<bool>, long> states;
     auto platform = aoc::day14::read_platform(infile);

2023/src/day15.cpp

@@ -33,7 +33,7 @@ int part_2(const std::vector<std::string> &steps) {
 }
 
 int main(int argc, char **argv) {
-    std::ifstream infile = aoc::parse_args(argc, argv);
+    std::ifstream infile = aoc::parse_args(argc, argv).infile;
 
     auto steps = aoc::day15::read_steps(infile);
 

2023/src/day16.cpp

@@ -11,7 +11,7 @@
 #include <iostream> // for cout, cerr
 
 int main(int argc, char **argv) {
-    std::ifstream infile = aoc::parse_args(argc, argv);
+    std::ifstream infile = aoc::parse_args(argc, argv).infile;
 
     auto laser_grid = aoc::day16::LaserGrid::read(infile);
 

2023/src/day17.cpp

@@ -11,7 +11,7 @@
 #include <iostream> // for cout
 
 int main(int argc, char **argv) {
-    std::ifstream infile = aoc::parse_args(argc, argv);
+    std::ifstream infile = aoc::parse_args(argc, argv).infile;
 
     auto city_map = aoc::day17::CityMap::read(infile);
 

2023/src/day18.cpp

@@ -33,7 +33,7 @@ long calc_volume(const std::vector<aoc::day18::DigInstruction> &instructions) {
 }
 
 int main(int argc, char **argv) {
-    std::ifstream infile = aoc::parse_args(argc, argv);
+    std::ifstream infile = aoc::parse_args(argc, argv).infile;
 
     const auto [instructions1, instructions2] =
         aoc::day18::read_instructions(infile);

2023/src/day19.cpp

@@ -38,7 +38,7 @@ int part_1(const aoc::day19::PartCategorizer &cat,
 }
 
 int main(int argc, char **argv) {
-    std::ifstream infile = aoc::parse_args(argc, argv);
+    std::ifstream infile = aoc::parse_args(argc, argv).infile;
 
     const auto &[cat, parts] = aoc::day19::read_input(infile);
 

2023/src/day20.cpp

@@ -46,7 +46,7 @@ long part_2(aoc::day20::MessageBus &bus) {
 }
 
 int main(int argc, char **argv) {
-    std::ifstream infile = aoc::parse_args(argc, argv);
+    std::ifstream infile = aoc::parse_args(argc, argv).infile;
 
     auto bus = aoc::day20::MessageBus::read_modules(infile);
 

2023/src/day21.cpp

@@ -11,7 +11,7 @@
 #include <iostream> // for cout
 
 int main(int argc, char **argv) {
-    std::ifstream infile = aoc::parse_args(argc, argv);
+    std::ifstream infile = aoc::parse_args(argc, argv).infile;
 
     auto garden = aoc::day21::Garden::read(infile);
 

2023/src/day22.cpp

@@ -72,7 +72,7 @@ int part_2(const aoc::day22::BrickStack &stack) {
 }
 
 int main(int argc, char **argv) {
-    std::ifstream infile = aoc::parse_args(argc, argv);
+    std::ifstream infile = aoc::parse_args(argc, argv).infile;
 
     auto stack = aoc::day22::BrickStack::read(infile);
 

2023/src/day23.cpp

@@ -11,7 +11,7 @@
 #include <iostream> // for cout
 
 void solve(int argc, char **argv, bool print) {
-    std::ifstream infile = aoc::parse_args(argc, argv);
+    std::ifstream infile = aoc::parse_args(argc, argv).infile;
 
     auto trail_map = aoc::day23::TrailMap::read(infile);
 

2023/src/day24.cpp

@@ -88,7 +88,7 @@ std::int64_t part_2(const std::vector<aoc::day24::Hailstone> &stones) {
 }
 
 int main(int argc, char **argv) {
-    std::ifstream infile = aoc::parse_args(argc, argv);
+    std::ifstream infile = aoc::parse_args(argc, argv).infile;
 
     std::vector<aoc::day24::Hailstone> stones = aoc::day24::read_stones(infile);
 

2023/src/day25.cpp

@@ -12,7 +12,7 @@
 #include <iostream> // for cout
 
 int main(int argc, char **argv) {
-    std::ifstream infile = aoc::parse_args(argc, argv);
+    std::ifstream infile = aoc::parse_args(argc, argv).infile;
 
     using namespace aoc::day25;
     Graph G = read_input(infile);

2024/src/day01.cpp

@@ -14,7 +14,7 @@
 // IWYU pragma: no_include <functional>  // for identity, less (ranges::sort)
 
 int main(int argc, char **argv) {
-    std::ifstream infile = aoc::parse_args(argc, argv);
+    std::ifstream infile = aoc::parse_args(argc, argv).infile;
 
     auto [left, right] = aoc::day01::read_input(infile);
     std::ranges::sort(left);

2024/src/day02.cpp

@@ -13,7 +13,7 @@
 // IWYU pragma: no_include <functional>  // for identity (ranges::count_if)
 
 int main(int argc, char **argv) {
-    std::ifstream infile = aoc::parse_args(argc, argv);
+    std::ifstream infile = aoc::parse_args(argc, argv).infile;
 
     auto reports = aoc::day02::read_input(infile);
 

2024/src/day03.cpp

@@ -12,7 +12,7 @@
 #include <string>   // for string, stoi
 
 int main(int argc, char **argv) {
-    std::ifstream infile = aoc::parse_args(argc, argv);
+    std::ifstream infile = aoc::parse_args(argc, argv).infile;
 
     std::string memory = aoc::read_whole_stream(infile);
 

2024/src/day04.cpp

@@ -11,7 +11,7 @@
 #include <iostream> // for cout
 
 int main(int argc, char **argv) {
-    std::ifstream infile = aoc::parse_args(argc, argv);
+    std::ifstream infile = aoc::parse_args(argc, argv).infile;
 
     auto grid = aoc::day04::read_input(infile);
 

2024/src/day05.cpp

@@ -14,7 +14,7 @@ int main(int argc, char **argv) {
 #if DEBUG_MODE
     using pretty_print::repr;
 #endif
-    std::ifstream infile = aoc::parse_args(argc, argv);
+    std::ifstream infile = aoc::parse_args(argc, argv).infile;
 
     auto [rules, orderings] = aoc::day05::Rules::read(infile);
 

2024/src/day06.cpp

@@ -11,7 +11,7 @@
 #include <iostream> // for cout
 
 int main(int argc, char **argv) {
-    std::ifstream infile = aoc::parse_args(argc, argv);
+    std::ifstream infile = aoc::parse_args(argc, argv).infile;
 
     aoc::day06::GuardSim guard_sim = aoc::day06::read_input(infile);
 

2024/src/day07.cpp

@@ -11,7 +11,7 @@
 #include <iostream> // for cout
 
 int main(int argc, char **argv) {
-    std::ifstream infile = aoc::parse_args(argc, argv);
+    std::ifstream infile = aoc::parse_args(argc, argv).infile;
 
     auto equations = aoc::day07::read_input(infile);
 

2024/src/day08.cpp

@@ -11,7 +11,7 @@
 #include <iostream> // for cout
 
 int main(int argc, char **argv) {
-    std::ifstream infile = aoc::parse_args(argc, argv);
+    std::ifstream infile = aoc::parse_args(argc, argv).infile;
 
     aoc::day08::AntennaMap antenna_map{};
     infile >> antenna_map;

2024/src/day09.cpp

@@ -13,12 +13,10 @@
 
 int main(int argc, char **argv) {
     using namespace aoc::day09;
-    std::ifstream infile = aoc::parse_args(argc, argv);
-    // NOLINTNEXTLINE(clang-analyzer-deadcode.DeadStores)
-    const bool is_example =
-        std::string{argv[1]}.find("example") != std::string::npos;
+    auto args = aoc::parse_args(argc, argv);
+    const bool is_example = args.input_type == aoc::InputType::EXAMPLE;
 
-    auto disk_layout = DiskLayout::read(infile);
+    auto disk_layout = DiskLayout::read(args.infile);
     if constexpr (aoc::DEBUG) {
         if (is_example) {
             std::cerr << "initial:    " << disk_layout << "\n";

2024/src/day10.cpp

@@ -11,7 +11,7 @@
 #include <iostream> // for cout
 
 int main(int argc, char **argv) {
-    std::ifstream infile = aoc::parse_args(argc, argv);
+    std::ifstream infile = aoc::parse_args(argc, argv).infile;
 
     auto island = aoc::day10::IslandMap::read(infile);
 

2024/src/day11.cpp

@@ -11,7 +11,7 @@
 #include <iostream> // for cout
 
 int main(int argc, char **argv) {
-    std::ifstream infile = aoc::parse_args(argc, argv);
+    std::ifstream infile = aoc::parse_args(argc, argv).infile;
 
     auto stones = aoc::day11::Stones::read(infile);
     if constexpr (aoc::DEBUG) {

2024/src/day12.cpp

@@ -11,7 +11,7 @@
 #include <iostream> // for cout
 
 int main(int argc, char **argv) {
-    std::ifstream infile = aoc::parse_args(argc, argv);
+    std::ifstream infile = aoc::parse_args(argc, argv).infile;
 
     auto garden = aoc::day12::Garden::read(infile);
     std::cout << garden.fence_price<aoc::PART_1>() << "\n";

2024/src/day13.cpp

@@ -11,7 +11,7 @@
 #include <iostream> // for cout
 
 int main(int argc, char **argv) {
-    std::ifstream infile = aoc::parse_args(argc, argv);
+    std::ifstream infile = aoc::parse_args(argc, argv).infile;
 
     auto claw_machines = aoc::day13::read_input(infile);
 

2024/src/day14.cpp

@@ -9,15 +9,13 @@
 #include "lib.hpp"
 #include <fstream>  // for ifstream
 #include <iostream> // for cout
-#include <string>   // for string
 
 int main(int argc, char **argv) {
-    std::ifstream infile = aoc::parse_args(argc, argv);
-    const bool is_example =
-        std::string{argv[1]}.find("example") != std::string::npos;
+    auto args = aoc::parse_args(argc, argv);
+    const bool is_example = args.input_type == aoc::InputType::EXAMPLE;
     aoc::Pos bounds = is_example ? aoc::Pos{11, 7} : aoc::Pos{101, 103};
 
-    auto robots = aoc::day14::Robots::read(infile, bounds);
+    auto robots = aoc::day14::Robots::read(args.infile, bounds);
 
     for (int time = 0; time < 10000; ++time) {
         if (time == 100) {