reformat code

include/command_line_interface.h

@@ -6,13 +6,14 @@
 #include "hanabi_types.hpp"
 
 
-namespace Hanabi {
+namespace Hanabi
-  enum class GameStateSpecType {
+{
-    turn = 0,
+  enum class GameStateSpecType
-    draw_pile_size = 1,
+  {
-  };
+    turn = 0, draw_pile_size = 1, };
 
-  struct CLIParms {
+  struct CLIParms
+  {
     /**
      * The data source for the game to be analysed.
      * If of type int, assumed to be a game ID from hanab.live

include/download.h

@@ -9,11 +9,12 @@
 
 #include "game_interface.h"
 
-namespace Download {
+namespace Download
+{
 
   std::optional<boost::json::object> download_game_json(int game_id);
 
-    std::optional<boost::json::object> open_game_json(const char *filename);
+  std::optional<boost::json::object> open_game_json(char const *filename);
 
   /**
    * @brief Create game object from given source
@@ -27,7 +28,7 @@ namespace Download {
    */
   Hanabi::Game get_game(int game_id, std::optional<uint8_t> score_goal);
 
-    Hanabi::Game get_game(const std::string& filename, std::optional<uint8_t> score_goal);
+  Hanabi::Game get_game(std::string const & filename, std::optional<uint8_t> score_goal);
 
 } // namespace Download
 

include/game_interface.h

@@ -21,43 +21,63 @@ namespace Hanabi
     bool operator==(const CardMultiplicity &) const = default;
   };
 
-  class HanabiStateIF {
+  class HanabiStateIF
+  {
   public:
     virtual void give_clue() = 0;
+
     virtual void discard(hand_index_t index) = 0;
+
     virtual void play(hand_index_t index) = 0;
 
     virtual void rotate_next_draw(const Card & card) = 0;
+
     virtual ActionType last_action_type() const = 0;
+
     virtual void revert() = 0;
 
     virtual void modify_clues(clue_t change) = 0;
+
     virtual void set_clues(clue_t clues) = 0;
 
     [[nodiscard]] virtual player_t turn() const = 0;
+
     [[nodiscard]] virtual clue_t num_clues() const = 0;
+
     [[nodiscard]] virtual unsigned score() const = 0;
+
     [[nodiscard]] virtual std::vector<std::vector<Card>> hands() const = 0;
+
     [[nodiscard]] virtual std::vector<Card> cur_hand() const = 0;
+
     [[nodiscard]] virtual size_t draw_pile_size() const = 0;
 
     [[nodiscard]] virtual bool is_trash(const Card & card) const = 0;
+
     [[nodiscard]] virtual bool is_playable(const Card & card) const = 0;
+
     [[nodiscard]] virtual bool is_relative_state_initialized() const = 0;
+
     [[nodiscard]] virtual hand_index_t find_card_in_hand(const Card & card) const = 0;
 
     [[nodiscard]] virtual std::uint64_t enumerated_states() const = 0;
+
     [[nodiscard]] virtual const std::unordered_map<unsigned long, probability_t> & position_tablebase() const = 0;
 
     virtual void init_backtracking_information() = 0;
+
     virtual probability_t evaluate_state() = 0;
 
     [[nodiscard]] virtual std::optional<probability_t> lookup() const = 0;
+
     [[nodiscard]] virtual std::uint64_t unique_id() const = 0;
+
     [[nodiscard]] virtual std::pair<std::vector<std::uint64_t>, std::vector<Card>> dump_unique_id_parts() const = 0;
 
     virtual std::vector<std::pair<Action, std::optional<probability_t>>> get_reasonable_actions() = 0;
-    virtual std::vector<std::pair<CardMultiplicity, std::optional<probability_t>>> possible_next_states(hand_index_t index, bool play) = 0;
+
+    virtual std::vector<std::pair<CardMultiplicity, std::optional<probability_t>>>
+    possible_next_states(hand_index_t index, bool play) = 0;
 
     virtual ~HanabiStateIF() = default;
 
@@ -77,16 +97,19 @@ namespace Hanabi
     Hanabi::player_t num_players;
   };
 
-  struct Game : private GameInfo {
+  struct Game : private GameInfo
+  {
   public:
     Game(std::unique_ptr<HanabiStateIF> state, GameInfo game_info);
 
     [[nodiscard]] unsigned cur_turn() const;
 
     void make_turn();
+
     void revert_turn();
 
     bool goto_draw_pile_size(size_t draw_pile_break);
+
     bool goto_turn(size_t turn);
 
     [[nodiscard]] bool holds_state() const;

include/game_state.h

@@ -18,7 +18,8 @@
 
 #include "game_interface.h"
 
-namespace Hanabi {
+namespace Hanabi
+{
 
   template<size_t num_suits>
   using Stacks = std::array<rank_t, num_suits>;
@@ -27,21 +28,26 @@ template<size_t num_suits>
   std::ostream & operator<<(std::ostream & os, const Stacks<num_suits> & stacks);
 
   template<typename T>
-struct InnerCardArray {
+  struct InnerCardArray
+  {
     template<size_t N>
     using array_t = std::array<T, N>;
   };
 
   template<>
-struct InnerCardArray<bool> {
+  struct InnerCardArray<bool>
+  {
     template<size_t N>
     using array_t = std::bitset<N>;
   };
 
-template <suit_t num_suits, typename T> struct CardArray {
+  template<suit_t num_suits, typename T>
+  struct CardArray
+  {
     using value_type = T;
 
     CardArray() = default;
+
     explicit CardArray(value_type default_val);
 
     void fill(value_type val);
@@ -61,47 +67,67 @@ private:
 // A game mimics a game state together with a list of actions and allows to traverse the game
 // history by making and reverting the stored actions.
   template<suit_t num_suits, player_t num_players, hand_index_t hand_size>
-class HanabiState : public HanabiStateIF {
+  class HanabiState : public HanabiStateIF
+  {
   public:
     HanabiState() = default;
+
     explicit HanabiState(const std::vector<Card> & deck, uint8_t score_goal = 5 * num_suits);
 
     void give_clue() final;
+
     void discard(hand_index_t index) final;
+
     void play(hand_index_t index) final;
 
     void rotate_next_draw(const Card & card) final;
+
     ActionType last_action_type() const final;
 
     void revert() final;
 
     void modify_clues(clue_t change) final;
+
     void set_clues(clue_t clues) final;
 
     [[nodiscard]] player_t turn() const final;
+
     [[nodiscard]] clue_t num_clues() const final;
+
     [[nodiscard]] unsigned score() const final;
+
     [[nodiscard]] std::vector<std::vector<Card>> hands() const final;
+
     [[nodiscard]] std::vector<Card> cur_hand() const final;
+
     [[nodiscard]] size_t draw_pile_size() const final;
 
     [[nodiscard]] hand_index_t find_card_in_hand(const Card & card) const final;
+
     [[nodiscard]] bool is_trash(const Card & card) const final;
+
     [[nodiscard]] bool is_playable(const Card & card) const final;
+
     [[nodiscard]] bool is_relative_state_initialized() const final;
 
     [[nodiscard]] std::uint64_t enumerated_states() const final;
+
     [[nodiscard]] const std::unordered_map<unsigned long, probability_t> & position_tablebase() const final;
 
     void init_backtracking_information() final;
+
     probability_t evaluate_state() final;
 
     [[nodiscard]] std::optional<probability_t> lookup() const final;
+
     [[nodiscard]] std::uint64_t unique_id() const final;
+
     [[nodiscard]] std::pair<std::vector<std::uint64_t>, std::vector<Card>> dump_unique_id_parts() const final;
 
     std::vector<std::pair<Action, std::optional<probability_t>>> get_reasonable_actions() final;
-    std::vector<std::pair<CardMultiplicity, std::optional<probability_t>>> possible_next_states(hand_index_t index, bool play) final;
+
+    std::vector<std::pair<CardMultiplicity, std::optional<probability_t>>>
+    possible_next_states(hand_index_t index, bool play) final;
 
     auto operator<=>(const HanabiState &) const = default;
 
@@ -109,13 +135,14 @@ protected:
     void print(std::ostream & os) const final;
 
   private:
-   struct BacktrackAction {
+    struct BacktrackAction
+    {
       explicit BacktrackAction(
-                ActionType action_type,
+            ActionType action_type
-                Card discarded_or_played = Cards::unknown,
+            , Card discarded_or_played = Cards::unknown
-                hand_index_t index = 0,
+            , hand_index_t index = 0
-                bool was_on_8_clues = false,
+            , bool was_on_8_clues = false
-                bool strike = false
+            , bool strike = false
       );
 
       ActionType action_type{};
@@ -136,20 +163,21 @@ private:
 
     // This keeps track of the representation of the gamestate relative to some starting state
     // and is used for id calculation
-   struct RelativeRepresentationData {
+    struct RelativeRepresentationData
+    {
       static constexpr player_t draw_pile = num_players;
       static constexpr player_t discard_pile = num_players + 1;
       static constexpr player_t play_stack = num_players + 2;
-       enum CardPosition : uint8_t {
+      enum CardPosition : uint8_t
-         hand = 0,
+      {
-         played = 1,
+        hand = 0, played = 1, discarded = 2
-         discarded = 2
       };
       // List of unique non-trash cards in draw pile
       boost::container::static_vector<Card, 30> good_cards_draw;
 
       // Card positions of these cards. Indexes correspond to the cards stored in _good_cards_draw vector
-       boost::container::static_vector<boost::container::static_vector<player_t, max_card_duplicity>, 30> card_positions_draw;
+      boost::container::static_vector<boost::container::static_vector<player_t, max_card_duplicity>
+            , 30> card_positions_draw;
 
       // This will indicate whether cards that were in hands initially still are in hand
       // The first n bits are used and cards are assumed to have been marked with their indices in this bitset
@@ -163,13 +191,17 @@ private:
     };
 
     unsigned long discard_and_potentially_update(hand_index_t index, bool cycle = false);
+
     unsigned long play_and_potentially_update(hand_index_t index, bool cycle = false);
 
     unsigned draw(hand_index_t index, bool cycle = false, bool played = true);
 
     void revert_draw(hand_index_t index, Card discarded_card, bool cycle = false, bool played = true);
+
     void revert_clue();
+
     void revert_discard(bool cycle = false);
+
     void revert_play(bool cycle = false);
 
 
@@ -179,6 +211,7 @@ private:
     void do_for_each_potential_draw(hand_index_t index, bool play, Function f);
 
     void incr_turn();
+
     void decr_turn();
 
     void check_draw_pile_integrity() const;
@@ -212,7 +245,12 @@ private:
   };
 
   template<std::size_t num_suits, player_t num_players, std::size_t hand_size>
-bool same_up_to_discard_permutation(HanabiState<num_suits, num_players, hand_size> state1, HanabiState<num_suits, num_players, hand_size> state2) {
+  bool same_up_to_discard_permutation(
+        HanabiState<num_suits, num_players, hand_size> state1, HanabiState<num_suits
+        , num_players
+        , hand_size> state2
+  )
+  {
     auto comp = [](CardMultiplicity & m1, CardMultiplicity & m2) -> bool {
       return m1.card.suit < m2.card.suit || (m1.card.suit == m2.card.suit and m1.card.rank < m2.card.rank) ||
              (m1.card.suit == m2.card.suit and m1.card.rank == m2.card.rank and m1.multiplicity < m2.multiplicity);

include/hanabi_types.hpp

@@ -8,7 +8,8 @@
 
 #include <boost/rational.hpp>
 
-namespace Hanabi {
+namespace Hanabi
+{
 
   using rank_t = std::uint8_t;
   using suit_t = std::uint8_t;
@@ -33,6 +34,7 @@ namespace Hanabi {
 #endif
 
   std::ostream & print_probability(std::ostream & os, const rational_probability & prob);
+
   std::ostream & print_probability(std::ostream & os, double prob);
 
   template<typename T>
@@ -57,7 +59,8 @@ namespace Hanabi {
   // Note that this is therefore not static so that we have external linking
   inline std::array<char, 6> suit_initials = {'r', 'y', 'g', 'b', 'p', 't'};
 
-  struct Card {
+  struct Card
+  {
     suit_t suit;
     rank_t rank;
 
@@ -74,29 +77,34 @@ namespace Hanabi {
     inline bool operator==(const Card & other) const;
   };
 
-  enum class ActionType : std::uint8_t {
+  enum class ActionType : std::uint8_t
-    play = 0,
+  {
-    discard = 1,
+    play = 0
-    clue = 2,
+    , discard = 1
-    color_clue = 2,
+    , clue = 2
-    rank_clue = 3,
+    , color_clue = 2
-    end_game = 4,
+    , rank_clue = 3
-    vote_terminate_players = 5,
+    , end_game = 4
-    vote_terminate = 10,
+    , vote_terminate_players = 5
-  };
+    , vote_terminate = 10
+    , };
 
-  struct Action {
+  struct Action
+  {
     ActionType type{};
     Card card{};
   };
 
   // Output utilities for Cards and Actions
   std::string to_string(const Card & card);
+
   std::ostream & operator<<(std::ostream & os, const Card & card);
+
   std::ostream & operator<<(std::ostream & os, const Action & action);
 
 
-  namespace Cards {
+  namespace Cards
+  {
     static constexpr Card r0 = {0, 5};
     static constexpr Card r1 = {0, 4};
     static constexpr Card r2 = {0, 3};
@@ -139,15 +147,20 @@ namespace Hanabi {
 
   //// INLINE SECTION
 
-  bool Card::operator==(const Card &other) const {
+  bool Card::operator==(const Card & other) const
+  {
     return suit == other.suit and rank == other.rank;
   }
 
   template<typename T>
-  std::ostream& print_probability(std::ostream& os, const std::optional<T>& prob) {
+  std::ostream & print_probability(std::ostream & os, const std::optional<T> & prob)
-    if (prob.has_value()) {
+  {
+    if (prob.has_value())
+    {
       return print_probability(os, prob.value());
-    } else {
+    }
+    else
+    {
       os << "unknown";
     }
     return os;

include/myassert.h

@@ -4,7 +4,9 @@
 #ifdef NDEBUG
 #define ASSERT(x) do { (void)sizeof(x);} while (0)
 #else
+
 #include <assert.h>
+
 #define ASSERT(x) assert(x)
 #endif
 

include/null_buffer.h

@@ -3,16 +3,22 @@
 
 #include <iosfwd>
 
-namespace NullBuffer {
+namespace NullBuffer
+{
 
-class NullBuffer final : public std::streambuf {
+  class NullBuffer final : public std::streambuf
+  {
   public:
-  int overflow(int c) override { return c; }
+    int overflow(int c) override
+    { return c; }
   };
 
-class NullStream final : public std::ostream {
+  class NullStream final : public std::ostream
+  {
   public:
-  NullStream() : std::ostream(&_m_sb) {}
+    NullStream() : std::ostream(&_m_sb)
+    {}
+
   private:
     NullBuffer _m_sb;
   };

include/parse_game.h

@@ -5,22 +5,26 @@
 
 #include "game_interface.h"
 
-namespace Hanabi {
+namespace Hanabi
+{
   // These are overloads that the boost/json library uses for parsing.
   // They convert a Card from/to json.
   // This has to be in the same namespace as Hanabi::Card.
   Card tag_invoke(boost::json::value_to_tag<Card>, boost::json::value const & jv);
+
   void tag_invoke(boost::json::value_from_tag, boost::json::value & jv, Hanabi::Card const & card);
 }
 
-namespace Parsing {
+namespace Parsing
+{
   /**
    * Represents a single action (turn) in a Hanab game.
    * Note that this is slightly differen than Hanabi::Action,
    * since this uses indices for specifying the discarded/played cards.
    * We only want to work with this type while parsing, converting to Hanabi::Action after.
    */
-  struct HanabLiveAction {
+  struct HanabLiveAction
+  {
     Hanabi::ActionType type{};
     /**
      * In case the action is of type discard or play,
@@ -45,13 +49,11 @@ namespace Parsing {
   std::vector<HanabLiveAction> parse_actions(const boost::json::value & action_json);
 
   std::vector<Hanabi::Action> convert_actions(
-        std::vector<HanabLiveAction> const & hanab_live_actions,
+        std::vector<HanabLiveAction> const & hanab_live_actions, std::vector<Hanabi::Card> const & deck
-        std::vector<Hanabi::Card> const & deck
   );
 
   Hanabi::GameInfo parse_game(boost::json::object const & game_json);
 }
 
 
-
 #endif //DYNAMIC_PROGRAM_PARSE_GAME_H

include/state_explorer.h

@@ -4,7 +4,8 @@
 #include <memory>
 #include "game_interface.h"
 
-namespace Hanabi {
+namespace Hanabi
+{
   void cli(Game const & game);
 }
 

src/check_games.cpp

@@ -2,23 +2,29 @@
 
 #include "download.h"
 
-void check_games(unsigned num_players, unsigned max_draw_pile_size, unsigned first_game = 0, unsigned last_game = 9999) {
+void check_games(unsigned num_players, unsigned max_draw_pile_size, unsigned first_game = 0, unsigned last_game = 9999)
+{
   std::vector<std::vector<Hanabi::probability_t>> winning_percentages(last_game + 2);
 
-    for(size_t draw_pile_size = 0; draw_pile_size <= max_draw_pile_size; draw_pile_size++) {
+  for (size_t draw_pile_size = 0; draw_pile_size <= max_draw_pile_size; draw_pile_size++)
+  {
     Hanabi::probability_t total_chance = 0;
-        const std::string output_fname = "games_" + std::to_string(num_players) + "p_draw_size_" + std::to_string(draw_pile_size) + ".txt";
+    const std::string output_fname =
+          "games_" + std::to_string(num_players) + "p_draw_size_" + std::to_string(draw_pile_size) + ".txt";
     std::ofstream file(output_fname);
-        for(size_t game_id = first_game; game_id <= last_game; game_id++) {
+    for (size_t game_id = first_game; game_id <= last_game; game_id++)
+    {
       const std::string input_fname = "json/" + std::to_string(num_players) + "p/" + std::to_string(game_id) + ".json";
       auto game = Download::get_game(input_fname.c_str(), 50, draw_pile_size);
       const Hanabi::probability_t chance = game->evaluate_state();
       winning_percentages[game_id].push_back(chance);
-            if(chance != 1) {
+      if (chance != 1)
+      {
         file << "Game " << game_id << ": " << chance << std::endl;
         file << *game << std::endl << std::endl;
       }
-            std::cout << "Finished game " << game_id << " with draw pile size " << draw_pile_size << ": " << chance << std::endl;
+      std::cout << "Finished game " << game_id << " with draw pile size " << draw_pile_size << ": " << chance
+                << std::endl;
 
       total_chance += chance;
     }
@@ -30,19 +36,23 @@ void check_games(unsigned num_players, unsigned max_draw_pile_size, unsigned fir
   const std::string results_file_name{"results_" + std::to_string(num_players) + "p.txt"};
   std::ofstream results_file(results_file_name);
   results_file << "game_id, ";
-    for(size_t draw_pile_size = 0; draw_pile_size <= max_draw_pile_size; draw_pile_size++) {
+  for (size_t draw_pile_size = 0; draw_pile_size <= max_draw_pile_size; draw_pile_size++)
+  {
     results_file << std::to_string(draw_pile_size) << ", ";
   }
   results_file << "\n";
-    for(size_t game_id = first_game; game_id <= last_game; game_id++) {
+  for (size_t game_id = first_game; game_id <= last_game; game_id++)
+  {
     results_file << game_id << ", ";
-        for(size_t draw_pile_size = 0; draw_pile_size <= max_draw_pile_size; draw_pile_size++) {
+    for (size_t draw_pile_size = 0; draw_pile_size <= max_draw_pile_size; draw_pile_size++)
+    {
       results_file << winning_percentages[game_id][draw_pile_size] << ", ";
     }
     results_file << std::endl;
   }
   results_file << "total, ";
-    for(size_t draw_pile_size = 0; draw_pile_size <= max_draw_pile_size; draw_pile_size++) {
+  for (size_t draw_pile_size = 0; draw_pile_size <= max_draw_pile_size; draw_pile_size++)
+  {
     results_file << winning_percentages.back()[draw_pile_size] << ", ";
   }
   results_file << std::endl;

src/command_line_interface.cpp

@@ -8,7 +8,8 @@
 
 namespace bpo = boost::program_options;
 
-namespace Hanabi {
+namespace Hanabi
+{
 
   template<class T>
   std::optional<T> convert_optional(boost::optional<T> val)
@@ -63,9 +64,12 @@ namespace Hanabi {
 
     if (not game.holds_state())
     {
-      if(std::holds_alternative<int>(parms.game)) {
+      if (std::holds_alternative<int>(parms.game))
+      {
         std::cout << "Failed to download game " << std::get<int>(parms.game) << " from hanab.live." << std::endl;
-      } else {
+      }
+      else
+      {
         std::cout << "Failed to open file " << std::get<std::string>(parms.game) << "." << std::endl;
       }
       return download_failed;
@@ -102,7 +106,8 @@ namespace Hanabi {
           throw std::logic_error("Invalid game state specification type encountered");
       }
       std::cout << parms.game_state_spec << " cannot be reached with specified replay." << std::endl;
-      std::cout << "Replay ends at turn " << game.cur_turn() << " with score of " << game.state->score() << "." << std::endl;
+      std::cout << "Replay ends at turn " << game.cur_turn() << " with score of " << game.state->score() << "."
+                << std::endl;
       return state_unreachable;
     }
 
@@ -125,13 +130,16 @@ namespace Hanabi {
       // (except for rare cases, where there is a forced win that does not need stalling).
       size_t const max_draw_pile_size = game.state->draw_pile_size();
       bool printed_replay_end_msg = false;
-      for(size_t remaining_cards = 1; remaining_cards <= max_draw_pile_size; remaining_cards++) {
+      for (size_t remaining_cards = 1; remaining_cards <= max_draw_pile_size; remaining_cards++)
+      {
         if (!game.goto_draw_pile_size(remaining_cards))
         {
           if (not printed_replay_end_msg)
           {
-            std::cout << "Draw pile size of " << game.state->draw_pile_size() -1 << " or lower cannot be obtained with the specified replay:" << std::endl;
+            std::cout << "Draw pile size of " << game.state->draw_pile_size() - 1
-            std::cout << "Replay ends at turn " << game.cur_turn() << " with score of " << game.state->score() << "." << std::endl;
+                      << " or lower cannot be obtained with the specified replay:" << std::endl;
+            std::cout << "Replay ends at turn " << game.cur_turn() << " with score of " << game.state->score() << "."
+                      << std::endl;
             printed_replay_end_msg = true;
           }
           continue;
@@ -142,7 +150,8 @@ namespace Hanabi {
           // When modifying the game state, we want to reset to the actual number of clues
           // to ensure that actions taken are legal.
           clue_t const original_num_clues = game.state->num_clues();
-          for(clue_t num_clues = 0; num_clues <= 8; num_clues++) {
+          for (clue_t num_clues = 0; num_clues <= 8; num_clues++)
+          {
             game.state->set_clues(num_clues);
             probability_t const result = game.state->evaluate_state();
             std::cout << "Probability with " << remaining_cards << " cards left in deck and " << +num_clues
@@ -150,13 +159,16 @@ namespace Hanabi {
             print_probability(std::cout, result) << std::endl;
             std::cout << *game.state << std::endl;
             auto const [a, b] = game.state->dump_unique_id_parts();
-            for (auto elem : a) {
+            for (auto elem: a)
+            {
               std::cout << elem << ", ";
             }
             std::cout << "-> " << game.state->unique_id() << std::endl;
           }
           game.state->set_clues(original_num_clues);
-        } else {
+        }
+        else
+        {
           probability_t const result = game.state->evaluate_state();
           std::cout << "Probability with " << remaining_cards << " cards left in deck: ";
           print_probability(std::cout, result) << std::endl;
@@ -200,27 +212,29 @@ namespace Hanabi {
               ("turn,t", bpo::value<unsigned>(&parms.game_state_spec), "Turn number of state to analyze. "
                                                                        "Turn 1 means no actions have been taken. ")
               ("draw-pile-size,d", bpo::value<unsigned>(&parms.game_state_spec), "Draw pile size of state to analyze.")
-          ("score-goal,s", bpo::value<boost::optional<uint8_t>>(&parms.score_goal),
+              ("score-goal,s"
-                "Score that counts as a win, i.e. is optimized for achieving. If unspecified, the maximum possible "
+               , bpo::value<boost::optional<uint8_t>>(&parms.score_goal)
+               , "Score that counts as a win, i.e. is optimized for achieving. If unspecified, the maximum possible "
                  "score will be used.")
               ("clue-modifier,c", bpo::value<int>(), "Optional relative modification to the number of clues applied to "
                                                      "selected game state. If unspecified, has value 0 and thus no effect.")
-          ("interactive,i", bpo::value<boost::optional<bool>>(&parms.interactive),
+              ("interactive,i"
-                "After computation, drop into interactive shell to explore game. If unspecified, a reasonable default "
+               , bpo::value<boost::optional<bool>>(&parms.interactive)
+               , "After computation, drop into interactive shell to explore game. If unspecified, a reasonable default "
                  "is chosen depending on other options.")
               ("recursive,r", "If specified, also analyzes all game states with fewer cards in the draw pile than the "
                               "specified one, considering smaller draw pile sizes first. Also useful for infinite analysis "
                               "(specifying this with a complex base state")
               ("all-clues", "Whenever evaluating a game state, evaluate it with all clue counts and output their "
                             "probabilities.")
-          ("quiet,q", "Deactivate all non-essential prints. Useful if output is parsed by another program.")
+              ("quiet,q", "Deactivate all non-essential prints. Useful if output is parsed by another program.");
-          ;
 
     bpo::variables_map vm;
     bpo::store(bpo::parse_command_line(argc, argv, desc), vm);
     bpo::notify(vm);
 
-    if (vm.count("help")) {
+    if (vm.count("help"))
+    {
       std::cout << "This program performs endgame analysis of Hanabi. It calculates optimum strategies\n"
                    "(and their winning percentages assuming a random draw pile distribution) under the\n"
                    "assumption that all players know their hands at all times during the game.\n"
@@ -238,7 +252,8 @@ namespace Hanabi {
     }
 
     // Parse file or game id specification, ensuring at most one is given
-    if (vm.count("file") + vm.count("game") != 1) {
+    if (vm.count("file") + vm.count("game") != 1)
+    {
       std::cout << "Exactly one option of 'file' and 'id' has to be given." << std::endl;
       std::cout << "Use '--help' to print a help message." << std::endl;
       return std::nullopt;
@@ -253,7 +268,8 @@ namespace Hanabi {
     }
 
     // Parse game state options (turn or draw), ensuring at most one is given.
-    if (vm.count("draw-pile-size") + vm.count("turn") != 1) {
+    if (vm.count("draw-pile-size") + vm.count("turn") != 1)
+    {
       std::cout << "Conflicting options --draw and --turn." << std::endl;
       std::cout << "Use '--help' to print a help message." << std::endl;
       return std::nullopt;

src/download.cpp

@@ -7,20 +7,25 @@
 #include "download.h"
 
 
-namespace Download {
+namespace Download
+{
 
-    std::optional<boost::json::object> download_game_json(int game_id) {
+  std::optional<boost::json::object> download_game_json(int game_id)
+  {
     std::string request_str = "https://hanab.live/export/" + std::to_string(game_id);
     cpr::Response r = cpr::Get(cpr::Url(request_str));
-        if (r.header["content-type"] != "application/json; charset=utf-8") {
+    if (r.header["content-type"] != "application/json; charset=utf-8")
+    {
       return std::nullopt;
     }
     return boost::json::parse(r.text).as_object();
   }
 
-    std::optional<boost::json::object> open_game_json(const char *filename) {
+  std::optional<boost::json::object> open_game_json(const char *filename)
+  {
     std::ifstream file(filename);
-        if (!file.is_open()) {
+    if (!file.is_open())
+    {
       return std::nullopt;
     }
     std::string game_json((std::istreambuf_iterator<char>(file)), std::istreambuf_iterator<char>());
@@ -30,7 +35,8 @@ namespace Download {
   Hanabi::Game get_game(int game_id, std::optional<uint8_t> score_goal)
   {
     std::optional<boost::json::object> const game_json = download_game_json(game_id);
-    if (!game_json.has_value() or game_json.value().empty()) {
+    if (!game_json.has_value() or game_json.value().empty())
+    {
       return {nullptr, {}};
     }
 
@@ -41,7 +47,8 @@ namespace Download {
   Hanabi::Game get_game(std::string const & filename, std::optional<uint8_t> score_goal)
   {
     std::optional<boost::json::object> const game_json = open_game_json(filename.c_str());
-    if (!game_json.has_value() or game_json.value().empty()) {
+    if (!game_json.has_value() or game_json.value().empty())
+    {
       return {nullptr, {}};
     }
 

src/game_interface.cpp

@@ -2,7 +2,8 @@
 
 #include "game_interface.h"
 
-namespace Hanabi {
+namespace Hanabi
+{
 
   std::ostream & operator<<(std::ostream & os, HanabiStateIF const & hanabi_state)
   {
@@ -15,14 +16,15 @@ namespace Hanabi {
   {
     // If there is a 'Null' action that only signals the game's end, we want to get rid of it now,
     // as this will mess with our moves.
-    if(not this->actions.empty()) {
+    if (not this->actions.empty())
-      switch(this->actions.back().type) {
+    {
+      switch (this->actions.back().type)
+      {
         case ActionType::vote_terminate:
         case ActionType::vote_terminate_players:
         case ActionType::end_game:
           this->actions.pop_back();
-        default:
+        default:;
-          ;
       }
     }
   }
@@ -39,7 +41,8 @@ namespace Hanabi {
     state->rotate_next_draw(next_draw);
     Action const & action = actions[next_action];
     std::uint8_t index;
-    switch(action.type) {
+    switch (action.type)
+    {
       case Hanabi::ActionType::color_clue:
       case Hanabi::ActionType::rank_clue:
         state->give_clue();
@@ -56,8 +59,7 @@ namespace Hanabi {
         break;
       case Hanabi::ActionType::vote_terminate_players:
       case Hanabi::ActionType::vote_terminate:
-      case Hanabi::ActionType::end_game:
+      case Hanabi::ActionType::end_game:;
-        ;
     }
     ++next_action;
   }
@@ -71,12 +73,17 @@ namespace Hanabi {
   bool Game::goto_turn(size_t turn)
   {
     size_t const cur_turn = next_action + 1;
-    if (cur_turn >= turn) {
+    if (cur_turn >= turn)
-      for(size_t i = 0; i < cur_turn - turn; i++) {
+    {
+      for (size_t i = 0; i < cur_turn - turn; i++)
+      {
         revert_turn();
       }
-    } else {
+    }
-      while(next_action < actions.size() and next_action + 1 < turn) {
+    else
+    {
+      while (next_action < actions.size() and next_action + 1 < turn)
+      {
         make_turn();
       }
     }
@@ -90,10 +97,13 @@ namespace Hanabi {
 
   bool Game::goto_draw_pile_size(size_t draw_pile_break)
   {
-    while (state->draw_pile_size() > draw_pile_break and next_action < actions.size()) {
+    while (state->draw_pile_size() > draw_pile_break and next_action < actions.size())
+    {
       make_turn();
     }
-    while(state->draw_pile_size() < draw_pile_break or (state->draw_pile_size() == draw_pile_break and state->last_action_type() == ActionType::clue)) {
+    while (state->draw_pile_size() < draw_pile_break or
+           (state->draw_pile_size() == draw_pile_break and state->last_action_type() == ActionType::clue))
+    {
       revert_turn();
     }
     return state->draw_pile_size() == draw_pile_break;

src/hanabi_types.cpp

@@ -1,8 +1,11 @@
 #include "hanabi_types.hpp"
 
-namespace Hanabi {
+namespace Hanabi
-  std::ostream &operator<<(std::ostream &os, Action const& action) {
+{
-    switch(action.type) {
+  std::ostream & operator<<(std::ostream & os, Action const & action)
+  {
+    switch (action.type)
+    {
       case ActionType::play:
         os << "play " + to_string(action.card);
         break;
@@ -19,25 +22,32 @@ namespace Hanabi {
   }
 
 
-  std::string to_string(const Hanabi::Card &card) {
+  std::string to_string(const Hanabi::Card & card)
-    if (card == Hanabi::Cards::trash) {
+  {
+    if (card == Hanabi::Cards::trash)
+    {
       return "kt";
-    } else {
+    }
+    else
+    {
       return Hanabi::suit_initials[card.suit] + std::to_string(5 - card.rank);
     }
   }
 
-  std::ostream &operator<<(std::ostream &os, const Card &card) {
+  std::ostream & operator<<(std::ostream & os, const Card & card)
+  {
     os << to_string(card);
     return os;
   }
 
-  std::ostream& print_probability(std::ostream& os, const rational_probability & prob) {
+  std::ostream & print_probability(std::ostream & os, const rational_probability & prob)
+  {
     os << prob << " ~ " << std::setprecision(5) << boost::rational_cast<double>(prob) * 100 << "%";
     return os;
   }
 
-  std::ostream& print_probability(std::ostream& os, double prob) {
+  std::ostream & print_probability(std::ostream & os, double prob)
+  {
     os << std::setprecision(5) << prob;
     return os;
   }

src/main.cpp

@@ -3,7 +3,8 @@
 #include "command_line_interface.h"
 
 
-int main(int argc, char *argv[]) {
+int main(int argc, char *argv[])
+{
   std::optional<Hanabi::CLIParms> parms = Hanabi::parse_parms(argc, argv);
   if (parms.has_value())
   {

src/make_state.cpp

@@ -1,17 +1,19 @@
 #include "game_state.h"
 #include "game_interface.h"
 
-namespace Hanabi {
+namespace Hanabi
+{
   std::unique_ptr<Hanabi::HanabiStateIF> make_game_state(
-        std::size_t num_suits,
+        std::size_t num_suits, Hanabi::player_t num_players, std::vector<Hanabi::Card> const & deck, std::optional<
-        Hanabi::player_t num_players,
+        uint8_t> score_goal
-        std::vector<Hanabi::Card> const &deck,
+  )
-        std::optional<uint8_t> score_goal)
   {
     uint8_t actual_score_goal = score_goal.value_or(5 * num_suits);
-    switch(num_players) {
+    switch (num_players)
+    {
       case 2:
-        switch(num_suits) {
+        switch (num_suits)
+        {
           case 3:
             return std::unique_ptr<Hanabi::HanabiStateIF>(new Hanabi::HanabiState<3, 2, 5>(deck, actual_score_goal));
           case 4:
@@ -24,7 +26,8 @@ namespace Hanabi {
             throw std::runtime_error("Invalid number of suits: " + std::to_string(num_suits));
         }
       case 3:
-        switch(num_suits) {
+        switch (num_suits)
+        {
           case 3:
             return std::unique_ptr<Hanabi::HanabiStateIF>(new Hanabi::HanabiState<3, 3, 5>(deck, actual_score_goal));
           case 4:
@@ -37,7 +40,8 @@ namespace Hanabi {
             throw std::runtime_error("Invalid number of suits: " + std::to_string(num_suits));
         }
       case 4:
-        switch(num_suits) {
+        switch (num_suits)
+        {
           case 3:
             return std::unique_ptr<Hanabi::HanabiStateIF>(new Hanabi::HanabiState<3, 4, 4>(deck, actual_score_goal));
           case 4:
@@ -50,7 +54,8 @@ namespace Hanabi {
             throw std::runtime_error("Invalid number of suits: " + std::to_string(num_suits));
         }
       case 5:
-        switch(num_suits) {
+        switch (num_suits)
+        {
           case 3:
             return std::unique_ptr<Hanabi::HanabiStateIF>(new Hanabi::HanabiState<3, 5, 4>(deck, actual_score_goal));
           case 4:
@@ -63,7 +68,8 @@ namespace Hanabi {
             throw std::runtime_error("Invalid number of suits: " + std::to_string(num_suits));
         }
       case 6:
-        switch(num_suits) {
+        switch (num_suits)
+        {
           case 3:
             return std::unique_ptr<Hanabi::HanabiStateIF>(new Hanabi::HanabiState<3, 6, 3>(deck, actual_score_goal));
           case 4:

src/parse_game.cpp

@@ -2,17 +2,22 @@
 
 #include "myassert.h"
 
-namespace Parsing {
+namespace Parsing
+{
   // This helper function deduces the type and assigns the value with the matching key
   template<class T>
-  void extract(boost::json::object const &obj, T &t, std::string_view key) {
+  void extract(boost::json::object const & obj, T & t, std::string_view key)
+  {
     t = value_to<T>(obj.at(key));
   }
 }
 
-namespace Hanabi {
+namespace Hanabi
-  Card tag_invoke(boost::json::value_to_tag<Card>,
+{
-                  boost::json::value const &jv) {
+  Card tag_invoke(
+        boost::json::value_to_tag<Card>, boost::json::value const & jv
+  )
+  {
     Hanabi::Card card{};
     boost::json::object const & obj = jv.as_object();
     Parsing::extract(obj, card.rank, "rank");
@@ -21,15 +26,18 @@ namespace Hanabi {
     return card;
   }
 
-  void tag_invoke(boost::json::value_from_tag, boost::json::value &jv, Hanabi::Card const &card) {
+  void tag_invoke(boost::json::value_from_tag, boost::json::value & jv, Hanabi::Card const & card)
-    jv = {{"suitIndex", card.suit},
+  {
-          {"rank",      card.rank}};
+    jv = {{  "suitIndex", card.suit}
+          , {"rank"     , card.rank}};
   }
 }
 
-namespace Parsing {
+namespace Parsing
+{
 
-  HanabLiveAction tag_invoke(boost::json::value_to_tag<HanabLiveAction>, boost::json::value const &jv) {
+  HanabLiveAction tag_invoke(boost::json::value_to_tag<HanabLiveAction>, boost::json::value const & jv)
+  {
     HanabLiveAction action{};
     uint8_t type;
     boost::json::object const & obj = jv.as_object();
@@ -38,7 +46,8 @@ namespace Parsing {
     extract(obj, type, "type");
 
     action.type = static_cast<Hanabi::ActionType>(type);
-    switch (action.type) {
+    switch (action.type)
+    {
       case Hanabi::ActionType::color_clue:
       case Hanabi::ActionType::rank_clue:
         action.type = Hanabi::ActionType::clue;
@@ -58,16 +67,19 @@ namespace Parsing {
     return action;
   }
 
-  std::pair<std::vector<Hanabi::Card>, Hanabi::suit_t> parse_deck(const boost::json::value &deck_json) {
+  std::pair<std::vector<Hanabi::Card>, Hanabi::suit_t> parse_deck(const boost::json::value & deck_json)
+  {
     auto deck = boost::json::value_to<std::vector<Hanabi::Card>>(deck_json);
-    for (auto &card: deck) {
+    for (auto & card: deck)
+    {
       ASSERT(card.rank < 5);
       ASSERT(card.rank >= 0);
       ASSERT(card.suit < 6);
       ASSERT(card.suit >= 0);
     }
     Hanabi::suit_t num_suits = 0;
-    for(const auto& card: deck) {
+    for (const auto & card: deck)
+    {
       num_suits = std::max(num_suits, card.suit);
     }
     return {deck, num_suits + 1};
@@ -78,14 +90,15 @@ namespace Parsing {
     return boost::json::value_to<std::vector<HanabLiveAction>>(action_json);
   }
 
-  std::vector<Hanabi::Action> convert_actions(std::vector<HanabLiveAction> const & hanab_live_actions, std::vector<Hanabi::Card> const & deck)
+  std::vector<Hanabi::Action>
+  convert_actions(std::vector<HanabLiveAction> const & hanab_live_actions, std::vector<Hanabi::Card> const & deck)
   {
     std::vector<Hanabi::Action> actions;
     std::transform(
-          hanab_live_actions.begin(),
+          hanab_live_actions.begin()
-          hanab_live_actions.end(),
+          , hanab_live_actions.end()
-          std::back_inserter(actions),
+          , std::back_inserter(actions)
-          [&deck](HanabLiveAction const & action){
+          , [&deck](HanabLiveAction const & action) {
             return Hanabi::Action{action.type, deck[action.target]};
           }
     );

src/state_explorer.cpp

@@ -11,15 +11,20 @@
 
 #include "game_state.h"
 
-namespace Hanabi {
+namespace Hanabi
+{
 
 
-    std::string read_line_memory_safe(const char *prompt) {
+  std::string read_line_memory_safe(const char *prompt)
+  {
     char *line = readline(prompt);
     std::string ret;
-        if (line == nullptr) {
+    if (line == nullptr)
+    {
       ret = "";
-        } else {
+    }
+    else
+    {
       ret = std::string(line);
     }
     free(line);
@@ -27,25 +32,17 @@ namespace Hanabi {
   }
 
   constexpr static std::array<std::string, 13> cli_commands = {
-            "play",
+        "play", "clue", "discard", "opt", "state", "id", "revert", "actions", "evaluate", "help", "quit", "set-initials"
-            "clue",
+        , "dump-id-parts",
-            "discard",
-            "opt",
-            "state",
-            "id",
-            "revert",
-            "actions",
-            "evaluate",
-            "help",
-            "quit",
-            "set-initials",
-            "dump-id-parts",
   };
 
-    char * cli_commands_generator(const char *text, int state) {
+  char *cli_commands_generator(const char *text, int state)
+  {
     std::string text_str(text);
-        for(auto& command : cli_commands) {
+    for (auto & command: cli_commands)
-            if (command.starts_with(text_str) && state-- <= 0) {
+    {
+      if (command.starts_with(text_str) && state-- <= 0)
+      {
         return strdup(command.c_str());
       }
     }
@@ -60,39 +57,50 @@ namespace Hanabi {
   }
 
 
-    Card parse_card(std::string card_str) {
+  Card parse_card(std::string card_str)
-        if (card_str == "trash" or card_str == "kt") {
+  {
+    if (card_str == "trash" or card_str == "kt")
+    {
       return Cards::trash;
     }
-        if(card_str.size() != 2) {
+    if (card_str.size() != 2)
+    {
       return Cards::unknown;
     }
     auto it = std::find(suit_initials.begin(), suit_initials.end(), card_str[0]);
-        if (it == suit_initials.end()) {
+    if (it == suit_initials.end())
+    {
       return Cards::unknown;
     }
     const suit_t suit = std::distance(suit_initials.begin(), it);
-        try {
+    try
+    {
       const rank_t rank = 5 - std::stoi(card_str.substr(1, 1));
       return Card{suit, rank};
-        } catch(std::invalid_argument&) {
+    }
+    catch (std::invalid_argument &)
+    {
       return Cards::unknown;
     }
   }
 
-    int representation_length(const rational_probability& probability) {
+  int representation_length(const rational_probability & probability)
+  {
     return 1 + static_cast<int>(std::ceil(std::log10(probability.denominator()))) + \
             static_cast<int>(std::ceil(std::log10(probability.numerator())));
   }
 
-    int representation_length(const double probability) {
+  int representation_length(const double probability)
+  {
     return static_cast<int>(std::ceil(std::log10(probability)));
   }
 
-    bool ask_for_card_and_rotate_draw(HanabiStateIF & state, hand_index_t index, bool play) {
+  bool ask_for_card_and_rotate_draw(HanabiStateIF & state, hand_index_t index, bool play)
+  {
     const auto next_states = state.possible_next_states(index, play);
 
-        if (next_states.size() <= 1) {
+    if (next_states.size() <= 1)
+    {
       // No need to ask for anything if draw contains only one possible type of card
       return true;
     }
@@ -102,21 +110,27 @@ namespace Hanabi {
 
     std::cout << "Choose drawn card: " << std::endl;
     int max_rational_digit_len = 0;
-        for(const auto &[card_multiplicity, probability]: next_states) {
+    for (const auto & [card_multiplicity, probability]: next_states)
+    {
       // If the card is played, we can treat it as a trash draw as well
-            if (state.is_trash(card_multiplicity.card) or (play and state.cur_hand()[index] == card_multiplicity.card)) {
+      if (state.is_trash(card_multiplicity.card) or (play and state.cur_hand()[index] == card_multiplicity.card))
+      {
         states_to_show.front().first.multiplicity += card_multiplicity.multiplicity;
         states_to_show.front().second = probability;
-            } else {
+      }
+      else
+      {
         states_to_show.emplace_back(card_multiplicity, probability);
       }
-            if (probability.has_value()) {
+      if (probability.has_value())
+      {
         max_rational_digit_len = std::max(max_rational_digit_len, representation_length(probability.value()));
       }
     }
 
     // Get rid of the trash collecting entry at the front
-        if (states_to_show.front().first.multiplicity == 0) {
+    if (states_to_show.front().first.multiplicity == 0)
+    {
       states_to_show.front() = std::move(states_to_show.back());
       states_to_show.pop_back();
     }
@@ -125,7 +139,8 @@ namespace Hanabi {
       return left.second > right.second;
     });
 
-        for (const auto &[card_multiplicity, probability]: states_to_show) {
+    for (const auto & [card_multiplicity, probability]: states_to_show)
+    {
       std::cout << card_multiplicity.card << " (" << card_multiplicity.multiplicity;
       std::cout << " copie(s) in draw) " << std::setw(max_rational_digit_len);
       print_probability(std::cout, probability) << std::endl;
@@ -136,21 +151,27 @@ namespace Hanabi {
     const std::string card_str = read_line_memory_safe(prompt.str().c_str());
 
     const Card drawn_card = [&card_str, &states_to_show]() {
-            if (card_str.empty()) {
+      if (card_str.empty())
+      {
         return states_to_show.front().first.card;
       }
       return parse_card(card_str);
     }();
 
-        if (drawn_card == Cards::unknown) {
+    if (drawn_card == Cards::unknown)
+    {
       std::cout << "Could not parse card " << card_str << std::endl;
       return false;
     }
 
-        auto selected_draw_it = std::find_if(next_states.begin(), next_states.end(), [&drawn_card, &state](const std::pair<CardMultiplicity, std::optional<probability_t>>& pair) {
+    auto selected_draw_it = std::find_if(next_states.begin(), next_states.end(), [&drawn_card, &state](
+          const std::pair<CardMultiplicity
+                , std::optional<probability_t>> & pair
+    ) {
       return (state.is_trash(pair.first.card) and drawn_card == Cards::trash) or pair.first.card == drawn_card;
     });
-        if (selected_draw_it == next_states.end()){
+    if (selected_draw_it == next_states.end())
+    {
       std::cout << "That card is not in the draw pile, aborting." << std::endl;
       return false;
     };
@@ -158,11 +179,13 @@ namespace Hanabi {
     return true;
   }
 
-    void signal_handler(int) {
+  void signal_handler(int)
+  {
     std::cout << "Use 'quit' to exit the interactive shell." << std::endl << "> ";
   }
 
-    void cli(Game const & game) {
+  void cli(Game const & game)
+  {
     std::signal(SIGINT, signal_handler);
     // Set up GNU readline
     rl_attempted_completion_function = cli_command_completion;
@@ -171,64 +194,82 @@ namespace Hanabi {
     // Tracks the depth of the replay the user explores. We have to ensure that we don't revert too much.
     unsigned depth = 0;
 
-        while (true) {
+    while (true)
+    {
       const std::string prompt = read_line_memory_safe("> ");
       add_history(prompt.c_str());
 
-            if (prompt.starts_with("help")) {
+      if (prompt.starts_with("help"))
+      {
         std::cout << "state:                 print information on current game state." << std::endl;
         std::cout << "clue:                  give a clue." << std::endl;
         std::cout << "play <card>:           play specified card." << std::endl;
         std::cout << "discard:               discard trash from hand." << std::endl;
-                std::cout << "opt:                   take optimal action. In case of ties, prefers plays and discards in that order." << std::endl;
+        std::cout
+              << "opt:                   take optimal action. In case of ties, prefers plays and discards in that order."
+              << std::endl;
         std::cout << "revert <turns>:        revert specified number of turns (default 1)." << std::endl;
-                std::cout << "actions:               display list of reasonable actions to take and their winning chances." << std::endl;
+        std::cout << "actions:               display list of reasonable actions to take and their winning chances."
-                std::cout << "evaluate:              evaluate current game state recursively. Potentially runtime-expensive." << std::endl;
+                  << std::endl;
+        std::cout << "evaluate:              evaluate current game state recursively. Potentially runtime-expensive."
+                  << std::endl;
         std::cout << "set-initials <chars>:  Set initials for the suits." << std::endl;
         std::cout << "(q)uit:                Quit this interactive shell." << std::endl;
-                std::cout << "id:                    display id of state. Has no inherent meaning, useful for debugging." << std::endl;
+        std::cout << "id:                    display id of state. Has no inherent meaning, useful for debugging."
-                std::cout << "dump-id-parts:         Dump parts used to calculate the id of the state as well as the cards associated to them." << std::endl;
+                  << std::endl;
+        std::cout
+              << "dump-id-parts:         Dump parts used to calculate the id of the state as well as the cards associated to them."
+              << std::endl;
         std::cout << "help:                  Display this help message." << std::endl;
         continue;
       }
 
-            if (prompt.starts_with("dump-id-parts")) {
+      if (prompt.starts_with("dump-id-parts"))
-                for (const auto val: game.state->dump_unique_id_parts().first) {
+      {
+        for (const auto val: game.state->dump_unique_id_parts().first)
+        {
           std::cout << val << ", ";
         }
         std::cout << std::endl;
-                for (const auto card: game.state->dump_unique_id_parts().second) {
+        for (const auto card: game.state->dump_unique_id_parts().second)
+        {
           std::cout << card << " ";
         }
         std::cout << std::endl;
         continue;
       }
 
-            if (prompt.starts_with("quit") or prompt == "q") {
+      if (prompt.starts_with("quit") or prompt == "q")
+      {
         std::cout << "Quitting." << std::endl;
         clear_history();
         std::signal(SIGINT, SIG_DFL);
         break;
       }
 
-            if (prompt.starts_with("set-initials")) {
+      if (prompt.starts_with("set-initials"))
-                if (prompt.length() < 16) {
+      {
+        if (prompt.length() < 16)
+        {
           std::cout << "At least 3 initials need to be specified" << std::endl;
           continue;
         }
         const std::string new_initials = prompt.substr(13);
-                for(size_t i = 0; i < std::min(size_t(6), new_initials.length()); i++) {
+        for (size_t i = 0; i < std::min(size_t(6), new_initials.length()); i++)
+        {
           suit_initials[i] = new_initials[i];
         }
         std::cout << "Updated initials to ";
-                for(const char c: suit_initials) {
+        for (const char c: suit_initials)
+        {
           std::cout << c;
         }
         std::cout << std::endl;
         continue;
       }
 
-            if (prompt.starts_with("state")) {
+      if (prompt.starts_with("state"))
+      {
         std::cout << *game.state << std::endl;
         const std::optional<probability_t> prob = game.state->lookup();
         std::cout << "Winning chance: ";
@@ -236,60 +277,75 @@ namespace Hanabi {
         continue;
       }
 
-            if (prompt.starts_with("evaluate")) {
+      if (prompt.starts_with("evaluate"))
+      {
         std::cout << "Evaluating current game state, this might take a while." << std::endl;
         game.state->evaluate_state();
         std::cout << "Evaluated state." << std::endl;
         continue;
       }
 
-            if (prompt.starts_with("revert")) {
+      if (prompt.starts_with("revert"))
-                if (depth == 0) {
+      {
+        if (depth == 0)
+        {
           std::cout << "Cannot revert more than base state." << std::endl;
           continue;
         }
         unsigned turns_to_revert = 1;
-                if(prompt.length() > 7) {
+        if (prompt.length() > 7)
-                    try {
+        {
+          try
+          {
             turns_to_revert = std::stoi(prompt.substr(7));
-                    } catch(const std::invalid_argument&) {
+          }
+          catch (const std::invalid_argument &)
+          {
             std::cout << "Could not parse number of turns to revert." << std::endl;
             continue;
           }
         }
-                if (turns_to_revert > depth) {
+        if (turns_to_revert > depth)
+        {
           turns_to_revert = depth;
           std::cout << "Only revererting " << depth << " turns, since this is already the base state." << std::endl;
         }
         std::cout << "Reverting " << turns_to_revert << " turn(s)." << std::endl;
-                while(turns_to_revert--) {
+        while (turns_to_revert--)
+        {
           game.state->revert();
           depth--;
         }
         continue;
       }
 
-            if (prompt.starts_with("id")) {
+      if (prompt.starts_with("id"))
+      {
         std::cout << game.state->unique_id() << std::endl;
         continue;
       }
 
-            if (prompt.starts_with("play")) {
+      if (prompt.starts_with("play"))
+      {
         const Card card = parse_card(prompt.substr(5, 2));
-                if (prompt.length() < 7) {
+        if (prompt.length() < 7)
+        {
           std::cout << "No card specified." << std::endl;
           continue;
         }
-                if (card == Cards::unknown) {
+        if (card == Cards::unknown)
+        {
           std::cout << "Could not parse card " << prompt.substr(5, 2) << std::endl;
           continue;
         }
         const hand_index_t index = game.state->find_card_in_hand(card);
-                if (index == hand_index_t(-1)) {
+        if (index == hand_index_t(-1))
+        {
           std::cout << "This card is not in the current players hand, aborting." << std::endl;
           continue;
         }
-                if (!ask_for_card_and_rotate_draw(*game.state, index, true)) {
+        if (!ask_for_card_and_rotate_draw(*game.state, index, true))
+        {
           continue;
         }
         game.state->play(index);
@@ -297,24 +353,30 @@ namespace Hanabi {
         continue;
       }
 
-            if (prompt.starts_with("discard")) {
+      if (prompt.starts_with("discard"))
+      {
         const auto hand = game.state->cur_hand();
         hand_index_t trash_index = invalid_hand_idx;
-                for(hand_index_t index = 0; index < hand.size(); index++) {
+        for (hand_index_t index = 0; index < hand.size(); index++)
-                    if (game.state->is_trash(hand[index])) {
+        {
+          if (game.state->is_trash(hand[index]))
+          {
             trash_index = index;
             break;
           }
         }
-                if (trash_index == invalid_hand_idx) {
+        if (trash_index == invalid_hand_idx)
+        {
           std::cout << "No trash in hand found, discarding not supported." << std::endl;
           continue;
         }
-                if (game.state->num_clues() == max_num_clues) {
+        if (game.state->num_clues() == max_num_clues)
+        {
           std::cout << "You cannot discard at " << max_num_clues << " clues." << std::endl;
           continue;
         }
-                if (!ask_for_card_and_rotate_draw(*game.state, trash_index, false)) {
+        if (!ask_for_card_and_rotate_draw(*game.state, trash_index, false))
+        {
           continue;
         }
         game.state->discard(trash_index);
@@ -322,8 +384,10 @@ namespace Hanabi {
         continue;
       }
 
-            if (prompt.starts_with("clue")) {
+      if (prompt.starts_with("clue"))
-                if (game.state->num_clues() == 0) {
+      {
+        if (game.state->num_clues() == 0)
+        {
           std::cout << "You cannot give a clue at 0 clues." << std::endl;
           continue;
         }
@@ -332,50 +396,60 @@ namespace Hanabi {
         continue;
       }
 
-            if (prompt.starts_with("actions")) {
+      if (prompt.starts_with("actions"))
+      {
         auto reasonable_actions = game.state->get_reasonable_actions();
         int max_rational_digit_len = std::accumulate(
-                        reasonable_actions.begin(),
+              reasonable_actions.begin(), reasonable_actions.end(), 0, [](
-                        reasonable_actions.end(),
+                    int old, const std::pair<Action
-                        0,
+                    , std::optional<probability_t>> & pair
-                        [](int old, const std::pair<Action, std::optional<probability_t>>& pair){
+              ) {
                 return std::max(old, representation_length(pair.second.value_or(0)));
               }
         );
-                for (const auto &[action, probability] : reasonable_actions) {
+        for (const auto & [action, probability]: reasonable_actions)
+        {
           std::cout.setf(std::ios_base::left, std::ios_base::adjustfield);
           std::cout << std::setw(7) << action << ": ";
           std::cout.setf(std::ios_base::right, std::ios_base::adjustfield);
           std::cout << std::setw(max_rational_digit_len);
           print_probability(std::cout, probability) << std::endl;
         }
-                if(reasonable_actions.empty()) {
+        if (reasonable_actions.empty())
+        {
           std::cout << "Game is over, no actions to take." << std::endl;
         }
         continue;
       }
 
-            if (prompt.starts_with("opt")) {
+      if (prompt.starts_with("opt"))
+      {
         const auto reasonable_actions = game.state->get_reasonable_actions();
-                if(reasonable_actions.empty()) {
+        if (reasonable_actions.empty())
+        {
           std::cout << "Game is over, no actions to take." << std::endl;
           continue;
         }
         Action best_action;
         std::optional<probability_t> best_probability;
-                for (const auto &[action, probability] : game.state->get_reasonable_actions()) {
+        for (const auto & [action, probability]: game.state->get_reasonable_actions())
-                    if (!best_probability.has_value() or (probability.has_value() and probability.value() > best_probability.value())) {
+        {
+          if (!best_probability.has_value() or
+              (probability.has_value() and probability.value() > best_probability.value()))
+          {
             best_action = action;
             best_probability = probability;
           }
         }
 
         hand_index_t index = 0;
-                switch(best_action.type) {
+        switch (best_action.type)
+        {
           case ActionType::play:
             std::cout << "Playing " << best_action.card << std::endl;
             index = game.state->find_card_in_hand(best_action.card);
-                        if(!ask_for_card_and_rotate_draw(*game.state,index,true)) {
+            if (!ask_for_card_and_rotate_draw(*game.state, index, true))
+            {
               continue;
             };
             game.state->play(game.state->find_card_in_hand(best_action.card));
@@ -383,7 +457,8 @@ namespace Hanabi {
           case ActionType::discard:
             std::cout << "Discarding" << std::endl;
             index = game.state->find_card_in_hand(best_action.card);
-                        if(!ask_for_card_and_rotate_draw(*game.state, index, false)) {
+            if (!ask_for_card_and_rotate_draw(*game.state, index, false))
+            {
               continue;
             };
             game.state->discard(game.state->find_card_in_hand(best_action.card));

src/test.cpp

@@ -1,14 +1,17 @@
 #include "download.h"
 #include "game_state.h"
 
-void test() {
+void test()
+{
   {
     auto game = Download::get_game("in/1005195", 43);
     auto res = game->evaluate_state();
-        if (!(res == Hanabi::probability_t(7, 8))) {
+    if (!(res == Hanabi::probability_t(7, 8)))
+    {
       std::cerr << "Test " << ("1005195") << " failed." << std::endl;
     }
-        else {
+    else
+    {
       std::cout << "Test " << ("1005195") << " succeeded." << std::endl;
     };
   }