/usr/include/dds.h is in libdds-dev 2.1.1+ddd105-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/* Windows requires a __declspec(dllexport) tag, etc */
#if defined(_WIN32)
# define DLLEXPORT __declspec(dllexport)
# define STDCALL __stdcall
#else
# define DLLEXPORT
# define STDCALL
# define INT8 char
#endif
#ifdef __cplusplus
# define EXTERN_C extern "C"
#else
# define EXTERN_C
#endif
#if defined(_WIN32)
# include <windows.h>
# include <process.h>
#endif
#if defined(_MSC_VER)
# include <intrin.h>
#else
# include <omp.h>
#endif
/* end of portability-macros section */
#define DDS_VERSION 20101 /* Version 2.1.1. Allowing for 2 digit
minor versions */
/*#define BENCH*/
#include <stdio.h>
/*#define _CRTDBG_MAP_ALLOC */ /* MEMORY LEAK? */
#include <stdlib.h>
/*#include <crtdbg.h> */ /* MEMORY LEAK? */
#include <string.h>
#include <time.h>
#include <assert.h>
#include <math.h>
typedef long long __int64;
/*#define STAT*/ /* Define STAT to generate a statistics log, stat.txt */
/*#define TTDEBUG*/ /* Define TTDEBUG to generate transposition table debug information.
Only for a single thread! */
#ifdef TTDEBUG
#define SEARCHSIZE 20000
#else
#define SEARCHSIZE 1
#endif
#define CANCELCHECK 200000
#if defined(INFINITY)
# undef INFINITY
#endif
#define INFINITY 32000
#define MAXNOOFTHREADS 16
#define MAXNODE 1
#define MINNODE 0
#define TRUE 1
#define FALSE 0
#define MOVESVALID 1
#define MOVESLOCKED 2
#define NSIZE 100000
#define WSIZE 100000
#define LSIZE 20000
#define NINIT 250000/*400000*/
#define WINIT 700000/*1000000*/
#define LINIT 50000
#define SIMILARDEALLIMIT 5
#define SIMILARMAXWINNODES 700000
#define MAXNOOFBOARDS 20
#define Max(x, y) (((x) >= (y)) ? (x) : (y))
#define Min(x, y) (((x) <= (y)) ? (x) : (y))
/* "hand" is leading hand, "relative" is hand relative leading
hand.
The handId macro implementation follows a solution
by Thomas Andrews.
All hand identities are given as
0=NORTH, 1=EAST, 2=SOUTH, 3=WEST. */
#define handId(hand, relative) (hand + relative) & 3
struct gameInfo { /* All info of a particular deal */
/*int vulnerable;*/
int declarer;
/*int contract;*/
int leadHand;
int leadSuit;
int leadRank;
int first;
int noOfCards;
unsigned short int suit[4][4];
/* 1st index is hand id, 2nd index is suit id */
};
struct moveType {
unsigned char suit;
unsigned char rank;
unsigned short int sequence; /* Whether or not this move is
the first in a sequence */
short int weight; /* Weight used at sorting */
};
struct movePlyType {
struct moveType move[14];
int current;
int last;
};
struct highCardType {
int rank;
int hand;
};
struct futureTricks {
int nodes;
#ifdef BENCH
int totalNodes;
#endif
int cards;
int suit[13];
int rank[13];
int equals[13];
int score[13];
};
struct deal {
int trump;
int first;
int currentTrickSuit[3];
int currentTrickRank[3];
unsigned int remainCards[4][4];
};
struct pos {
unsigned short int rankInSuit[4][4]; /* 1st index is hand, 2nd index is
suit id */
int orderSet[4];
int winOrderSet[4];
int winMask[4];
int leastWin[4];
unsigned short int removedRanks[4]; /* Ranks removed from board,
index is suit */
unsigned short int winRanks[50][4]; /* Cards that win by rank,
indices are depth and suit */
unsigned char length[4][4];
char ubound;
char lbound;
char bestMoveSuit;
char bestMoveRank;
int first[50]; /* Hand that leads the trick for each ply*/
int high[50]; /* Hand that is presently winning the trick */
struct moveType move[50]; /* Presently winning move */
int handRelFirst; /* The current hand, relative first hand */
int tricksMAX; /* Aggregated tricks won by MAX */
struct highCardType winner[4]; /* Winning rank of the trick,
index is suit id. */
struct highCardType secondBest[4]; /* Second best rank, index is suit id. */
};
struct posSearchType {
struct winCardType * posSearchPoint;
__int64 suitLengths;
struct posSearchType * left;
struct posSearchType * right;
};
struct nodeCardsType {
char ubound; /* ubound and
lbound for the N-S side */
char lbound;
char bestMoveSuit;
char bestMoveRank;
char leastWin[4];
};
struct winCardType {
int orderSet;
int winMask;
struct nodeCardsType * first;
struct winCardType * prevWin;
struct winCardType * nextWin;
struct winCardType * next;
};
struct evalType {
int tricks;
unsigned short int winRanks[4];
};
struct relRanksType {
int aggrRanks[4];
int winMask[4];
};
struct adaptWinRanksType {
unsigned short int winRanks[14];
};
struct ttStoreType {
struct nodeCardsType * cardsP;
char tricksLeft;
char target;
char ubound;
char lbound;
unsigned char first;
unsigned short int suit[4][4];
};
struct card {
int suit;
int rank;
};
struct boards {
int noOfBoards;
struct deal deals[MAXNOOFBOARDS];
int target[MAXNOOFBOARDS];
int solutions[MAXNOOFBOARDS];
int mode[MAXNOOFBOARDS];
};
struct solvedBoards {
int noOfBoards;
int timeOut;
struct futureTricks solvedBoard[MAXNOOFBOARDS];
};
struct paramType {
int noOfBoards;
struct boards *bop;
struct solvedBoards *solvedp;
int tstart;
int timeSupervision;
int remainTime;
};
struct ddTableDeal {
unsigned int cards[4][4];
};
struct ddTableResults {
int resTable[5][4];
};
struct localVarType {
int nodeTypeStore[4];
int trump;
unsigned short int lowestWin[50][4];
int nodes;
int trickNodes;
int no[50];
int iniDepth;
int handToPlay;
int payOff;
int val;
struct pos iniPosition;
struct pos lookAheadPos; /* Is initialized for starting
alpha-beta search */
struct moveType forbiddenMoves[14];
struct moveType initialMoves[4];
struct moveType cd;
struct movePlyType movePly[50];
int tricksTarget;
struct gameInfo game;
int newDeal;
int newTrump;
int similarDeal;
unsigned short int diffDeal;
unsigned short int aggDeal;
int estTricks[4];
FILE *fp2;
FILE *fp7;
FILE *fp11;
/*FILE *fdp */
struct moveType bestMove[50];
struct moveType bestMoveTT[50];
struct winCardType temp_win[5];
int hiwinSetSize;
int hinodeSetSize;
int hilenSetSize;
int MaxnodeSetSize;
int MaxwinSetSize;
int MaxlenSetSize;
int nodeSetSizeLimit;
int winSetSizeLimit;
int lenSetSizeLimit;
__int64 maxmem; /* bytes */
__int64 allocmem;
__int64 summem;
int wmem;
int nmem;
int lmem;
int maxIndex;
int wcount;
int ncount;
int lcount;
int clearTTflag;
int windex;
/*int ttCollect;
int suppressTTlog;*/
struct relRanksType * rel;
struct adaptWinRanksType * adaptWins;
__int64 suitLengths;
struct posSearchType *rootnp[14][4];
struct winCardType **pw;
struct nodeCardsType **pn;
struct posSearchType **pl;
struct nodeCardsType * nodeCards;
struct winCardType * winCards;
struct posSearchType * posSearch;
/*struct ttStoreType * ttStore;
int lastTTstore;*/
unsigned short int iniRemovedRanks[4];
int nodeSetSize; /* Index with range 0 to nodeSetSizeLimit */
int winSetSize; /* Index with range 0 to winSetSizeLimit */
int lenSetSize; /* Index with range 0 to lenSetSizeLimit */
};
#if defined(_WIN32)
extern CRITICAL_SECTION solv_crit;
#endif
extern int noOfThreads;
extern int noOfCores;
extern struct localVarType localVar[MAXNOOFTHREADS];
extern struct gameInfo game;
extern int newDeal;
extern struct gameInfo * gameStore;
extern struct pos position, iniPosition, lookAheadPos;
extern struct moveType move[13];
extern struct movePlyType movePly[50];
extern struct searchType searchData;
extern struct moveType forbiddenMoves[14]; /* Initial depth moves that will be
excluded from the search */
extern struct moveType initialMoves[4];
extern struct moveType highMove;
extern struct moveType * bestMove;
extern struct winCardType **pw;
extern struct nodeCardsType **pn;
extern struct posSearchType **pl;
extern int * highestRank;
extern int * counttable;
extern struct adaptWinRanksType * adaptWins;
extern struct winCardType * temp_win;
extern unsigned short int bitMapRank[16];
extern unsigned short int relRankInSuit[4][4];
extern int sum;
extern int score1Counts[50], score0Counts[50];
extern int c1[50], c2[50], c3[50], c4[50], c5[50], c6[50], c7[50],
c8[50], c9[50];
extern int nodeTypeStore[4]; /* Look-up table for determining if
node is MAXNODE or MINNODE */
extern int lho[4], rho[4], partner[4];
extern int trumpContract;
extern int trump;
extern int nodes; /* Number of nodes searched */
extern int no[50]; /* Number of nodes searched on each
depth level */
extern int payOff;
extern int iniDepth;
extern int treeDepth;
extern int tricksTarget; /* No of tricks for MAX in order to
meet the game goal, e.g. to make the
contract */
extern int tricksTargetOpp; /* Target no of tricks for MAX
opponent */
extern int targetNS;
extern int targetEW;
extern int handToPlay;
extern int searchTraceFlag;
extern int countMax;
extern int depthCount;
extern int highHand;
extern int nodeSetSizeLimit;
extern int winSetSizeLimit;
extern int lenSetSizeLimit;
extern int estTricks[4];
extern int recInd;
extern int suppressTTlog;
extern unsigned char suitChar[4];
extern unsigned char rankChar[15];
extern unsigned char handChar[4];
extern int cancelOrdered;
extern int cancelStarted;
extern int threshold;
extern unsigned char cardRank[15], cardSuit[5], cardHand[4];
extern unsigned char cardSuitSds[5];
extern struct handStateType handState;
extern int totalNodes;
extern struct futureTricks fut, ft;
extern struct futureTricks *futp;
extern char stri[128];
extern FILE *fp, /**fp2, *fp7, *fp11,*/ *fpx;
/* Pointers to logs */
extern struct ttStoreType * ttStore;
extern int lastTTstore;
extern int ttCollect;
extern int suppressTTlog;
EXTERN_C DLLEXPORT int STDCALL SolveBoard(struct deal dl,
int target, int solutions, int mode, struct futureTricks *futp, int threadIndex);
EXTERN_C DLLEXPORT int STDCALL CalcDDtable(struct ddTableDeal tableDeal,
struct ddTableResults * tablep);
EXTERN_C void InitStart(int gb_ram, int ncores);
void InitGame(int gameNo, int moveTreeFlag, int first, int handRelFirst, int thrId);
void InitSearch(struct pos * posPoint, int depth,
struct moveType startMoves[], int first, int mtd, int thrId);
int ABsearch(struct pos * posPoint, int target, int depth, int thrId);
void Make(struct pos * posPoint, unsigned short int trickCards[4],
int depth, int thrId);
int MoveGen(struct pos * posPoint, int depth, int thrId);
void InsertSort(int n, int depth, int thrId);
void UpdateWinner(struct pos * posPoint, int suit);
void UpdateSecondBest(struct pos * posPoint, int suit);
int WinningMove(struct moveType * mvp1, struct moveType * mvp2, int thrId);
int AdjustMoveList(int thrId);
int QuickTricks(struct pos * posPoint, int hand,
int depth, int target, int *result, int thrId);
int LaterTricksMIN(struct pos *posPoint, int hand, int depth, int target, int thrId);
int LaterTricksMAX(struct pos *posPoint, int hand, int depth, int target, int thrId);
struct nodeCardsType * CheckSOP(struct pos * posPoint, struct nodeCardsType
* nodep, int target, int tricks, int * result, int *value, int thrId);
struct nodeCardsType * UpdateSOP(struct pos * posPoint, struct nodeCardsType
* nodep);
struct nodeCardsType * FindSOP(struct pos * posPoint,
struct winCardType * nodeP, int firstHand,
int target, int tricks, int * valp, int thrId);
struct nodeCardsType * BuildPath(struct pos * posPoint,
struct posSearchType *nodep, int * result, int thrId);
void BuildSOP(struct pos * posPoint, int tricks, int firstHand, int target,
int depth, int scoreFlag, int score, int thrId);
struct posSearchType * SearchLenAndInsert(struct posSearchType
* rootp, __int64 key, int insertNode, int *result, int thrId);
void Undo(struct pos * posPoint, int depth, int thrId);
int CheckDeal(struct moveType * cardp, int thrId);
int InvBitMapRank(unsigned short bitMap);
int InvWinMask(int mask);
void ReceiveTTstore(struct pos *posPoint, struct nodeCardsType * cardsP, int target,
int depth, int thrId);
int NextMove(struct pos *posPoint, int depth, int thrId);
int DumpInput(int errCode, struct deal dl, int target, int solutions, int mode);
void Wipe(int thrId);
void AddNodeSet(int thrId);
void AddLenSet(int thrId);
void AddWinSet(int thrId);
void PrintDeal(FILE *fp, unsigned short ranks[4][4]);
int SolveAllBoards4(struct boards *bop, struct solvedBoards *solvedp,
int timeSupervision, int remainTime);
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