我正在使用ANSI C C90标准在GCC中创建一个小应用程序。
我的标题文件：
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define DECKSZ 52
#define HAND_SIZE 5
#define STACKMAX 52
#define EMPTY -1
#define FULL (STACKMAX-1)
typedef enum boolean {false, true} boolean;
typedef struct card {
enum pip {ACE=1, TWO, THREE, FOUR, FIVE, SIX, SEVEN, EIGHT, NINE, TEN, JACK, QUEEN, KING} pips;
enum suit {SPADES, CLUBS, HEARTS, DIAMONDS} suits;
char cardName[20];
} card;
typedef struct stack {
card s[STACKMAX];
int top;
} stack;
extern card deck[];
void initDeck(card[]);
void shuffleDeck(card[]);
void displayHand(card*);
void arrangeHand(card*);
void swap(card*, card*);
boolean isFlush(card[]);
boolean isStraight(card[]);
boolean isXOfAKind(card[], int, enum pip);
boolean isStraightFlush(card[]);
boolean isFullHouse(card[]);
boolean isTwoPair(card[]);
boolean isEmpty(stack*);
boolean isFull(stack*);
void push(card, stack*);
card pop(stack*);
void reset(stack*);
我的主要档案：
#include "Poker.h"
int main(void) {
int i, j;
int numHands = 0;
int flushCount = 0;
int straightCount = 0;
int xOfAKindCount = 0;
int straightFlushCount = 0;
int fullHouseCount = 0;
int isTwoPairCount = 0;
card deck[DECKSZ] = {0};
card hand[HAND_SIZE] = {0};
stack deckStack = {0};
stack handStack = {0};
initDeck(deck);
shuffleDeck(deck);
reset(&deckStack);
for (i = 0; i < DECKSZ; i++) {
push(deck[i], &deckStack);
}
do {
numHands += 1;
reset(&handStack);
for (i = 0; i < HAND_SIZE; i++) {
push(pop(&deckStack), &handStack);
if (isEmpty(&deckStack)) {
reset(&handStack);
i = HAND_SIZE;
shuffleDeck(deck);
reset(&deckStack);
numHands -= 1;
for (j = 0; j < DECKSZ; j++) {
push(deck[j], &deckStack);
}
}
hand[i] = handStack.s[i];
}
arrangeHand(hand);
/*displayHand(hand);*/
flushCount += isFlush(hand);
straightCount += isStraight(hand);
xOfAKindCount += isXOfAKind(hand, 2, 0);
straightFlushCount += isStraightFlush(hand);
fullHouseCount += isFullHouse(hand);
isTwoPairCount += isTwoPair(hand);
printf("Flushes:%d Straights:%d SF's:%d Number of Hands:%d\r",
flushCount, straightCount, straightFlushCount, numHands);
} while (1);
printf("\n");
return EXIT_SUCCESS;
}
void initDeck(card deck[]) {
int i;
for (i = 0; i < DECKSZ; i++) {
deck[i].pips = (const)((i % 13) + 1);
deck[i].suits = (const)(i / 13);
}
}
void shuffleDeck(card deck[]) {
int i, j;
for (i = 0; i < DECKSZ; i++) {
j = rand() % DECKSZ;
swap(&deck[i], &deck[j]);
}
}
void displayHand(card hand[]) {
int i, tmpPip = 0, tmpSuit = 0;
const char *pipNames[] = {"Ace","Two","Three","Four","Five","Six","Seven","Eight","Nine","Ten","Jack","Queen","King"};
const char *suitNames[] = {" of Spades"," of Hearts"," of Diamonds"," of Clubs"};
for (i = 0; i < HAND_SIZE; i++) {
tmpPip = (hand[i].pips) - 1;
tmpSuit = (hand[i].suits);
strcpy(hand[i].cardName, pipNames[tmpPip]);
strcat(hand[i].cardName, suitNames[tmpSuit]);
printf("%s\n", hand[i].cardName);
}
}
void arrangeHand(card *hand) {
int i, j;
for (i = HAND_SIZE-1; i >= 0; i--) {
for (j = 0; j < i; j++) {
if ((hand+j)->pips > (hand+j+1)->pips)
swap(hand+j, hand+j+1);
}
}
}
void swap(card *c1, card *c2) {
card temp;
temp = *c1;
*c1 = *c2;
*c2 = temp;
}
boolean isFlush(card hand[]) {
int i, count = 0, result = 0;
for (i = 0; i < HAND_SIZE-1; i++) {
if (hand[i].suits != hand[i+1].suits) {
count++;
}
}
if (count == HAND_SIZE)
result = 1;
return ((boolean) (result));
}
boolean isStraight(card hand[]) {
int i, count = 0, result = 0;
for (i = 0; i < HAND_SIZE - 1; i++) {
if (hand[i].pips == (hand[i+1].pips + 1)) {
count++;
}
}
if (count == HAND_SIZE)
result = 1;
return ((boolean) (result));
}
boolean isXOfAKind(card hand[], int x, enum pip pipsIgnored) {
int i, count = 0, result = 0;
for (i = 0; i < HAND_SIZE - 1; i++) {
if (hand[i].pips == hand[i+1].pips) {
if (hand[i].pips != pipsIgnored) {
count++;
}
}
}
if (count == (x - 1))
result = 1;
return count;
}
boolean isStraightFlush(card hand[]) {
int result = 0;
result = isFlush(hand);
result = isStraight(hand);
return ((boolean) (result));
}
boolean isFullHouse(card hand[]) {
int result = 0;
result = isXOfAKind(hand, 3, 0);
result = isXOfAKind(hand, 2, 0);
return ((boolean) (result));
}
boolean isTwoPair(card hand[]) {
int result = 0;
result = isXOfAKind(hand, 2, hand->pips);
result = isXOfAKind(hand, 2, hand->pips);
return ((boolean) (result));
}
boolean isEmpty(stack *stk) {
return ((boolean) (stk->top == EMPTY));
}
boolean isFull(stack *stk) {
return ((boolean) (stk->top == FULL));
}
void push(card c, stack *stk) {
stk->top++;
stk->s[stk -> top] = c;
}
card pop(stack *stk) {
return (stk->s[stk->top--]);
}
void reset(stack *stk) {
stk->top = EMPTY;
}
我的问题是我的main（）函数中的变量numHands。每当我在我的甲板堆栈上调用reset（）时，它似乎将自身重置为零。我根本不希望它重置。有人知道为什么它重置为零，以及我怎么能让它不重置？谢谢！
答案 0 :(得分：1)
这里通过访问hand
for (i = 0; i < HAND_SIZE; i++) {
push(pop(&deckStack), &handStack);
if (isEmpty(&deckStack)) {
reset(&handStack);
i = HAND_SIZE; /* <== set i to 5 */
shuffleDeck(deck);
reset(&deckStack);
numHands -= 1;
for (j = 0; j < DECKSZ; j++) {
push(deck[j], &deckStack);
}
}
hand[i] = handStack.s[i]; /* <== illegal hand[5] */
}
我怀疑无效访问触发的未定义行为在您之前运行程序时更改了numHands的值。今天它可能会有所不同。