我有一个类“CardT”,它包含一个由枚举值存储的套装和编号。对于纸牌的使用,我创造了这些卡中的52个牌组。我还有一个“画面”类,为纸牌画面存储了一组这些卡片,我的棋盘类包含8个这样的阵列。将值放入数组并打印以检查是否正确后,它会给出正确的输出。但是,如果我在打印完相同的东西之后立即调用另一个函数,我会得到非常不同的值。
void Board::setUp(){
//here i setup all 52
CardT deck[52];
int c = 0;
for (int i = 0; i <= 3; i++)
for (int j = 1; j <=13;j++){
deck[c] = CardT(static_cast<CardSuit>(i),static_cast<CardNum>(j));
c++;
}
//shuffle
std::random_shuffle(&deck[0],&deck[52]);
CardT tabls[8][13];
for (int i = 0; i < 4; i++)
for (int j = 0; j < 8; j++)
tabls[i][j] = deck[j + i*8]; //the first 4 piles that contain 8 cards
for (int i = 4; i < 8; i++)
for (int j = 0; j < 7;j++)
tabls[i][j] = deck[j + i*8]; //last four with seven
for (int i = 0; i < 4; i++)
this->tableauPiles[i] = TableauPileT(tabls[i],8); //place first four, (second param is size)
for (int i = 4; i < 8; i++)
this->tableauPiles[i] = TableauPileT(tabls[i],7); //place second four
for (int i = 0; i < 4;i++)
this->foundationPiles[i] = FoundationPileT(); //just intialize
//FOR testing
for (int j = 0; j < 13; j++){
if (this->tableauPiles[4].cardAtIndex(j)){
std::cout << this->tableauPiles[4].getCardByIndex(j).getNum() << ",,,," << this->tableauPiles[4].getCardByIndex(j).getSuit() << std::endl;
}
}
//printed twice for assurance, both print as expected
for (int j = 0; j < 13; j++){
if (this->tableauPiles[4].cardAtIndex(j)){
std::cout << this->tableauPiles[4].getCardByIndex(j).getNum() << ",,-,," << this->tableauPiles[4].getCardByIndex(j).getSuit() << std::endl;
}
}
}
甲板设置
void Board::printTab(int i){
for (int j = 0; j < 13; j++){
if (this->tableauPiles[4].cardAtIndex(j)){
std::cout << this->tableauPiles[4].getCardByIndex(j).getNum() << ",,Third,," << this->tableauPiles[4].getCardByIndex(j).getSuit() << std::endl;
}
}
继承人我再次打印完全相同的东西:
#ifndef BOARD_H
#define BOARD_H
class Board{
private:
CardT freeCells[4];
bool freeCellsOpen[4] = {false,false,false,false};
FoundationPileT foundationPiles[4];
TableauPileT tableauPiles[8];
int cardPosition(CardNum n, CardSuit s);
int emptyFreeCell();
public:
Board();
void setUp();
void moveToFreeCell(CardNum n, CardSuit s);
void moveToTableau(CardNum n, CardSuit s, int tableau);
void moveToFoundation(CardNum n, CardSuit s);
void printBoard();
void printTab(int i);
};
#endif
}
董事会的标题
1,,,,1
12,,,,2
4,,,,0
4,,,,1
4,,,,2
5,,,,3
10,,,,0
1,,-,,1
12,,-,,2
4,,-,,0
4,,-,,1
4,,-,,2
5,,-,,3
10,,-,,0
1,,Third,,1
0,,Third,,1
0,,Third,,0
32545,,Third,,1284192187
0,,Third,,10
32767,,Third,,1922833024
0,,Third,,0
最后这是给出的输出
TempVars("EmployeeType") = rs!EmployeeTypeID.Value
打印值存储为枚举。
在print语句之间明显改变,c ++非常新,但在其他方面有经验。我很想忘记任何帮助。
另外即时打印第4堆,我相信0-3堆的所有打印都正确,只有4 +正在搞乱。
另外值得注意的是,大的意外值在执行之间发生变化,其余值保持不变。
答案 0 :(得分:1)
您的卡表(CardT tabls[8][13];
)已在Board::setUp()
方法的堆栈中声明。
然后,在TableauPileT对象中存储指向这些指针的指针。
这适用于您的调试代码,因为它们仍在堆栈中,
但是当你调用printTab
函数时,它们已被解除分配。
所以你只是在那时阅读内存中遗留下来的东西,这意味着你得到了未定义的行为。
答案 1 :(得分:1)
shuffle之后的第二个循环:为什么你将我乘以8而只有6张牌?显然没有数组边界。应该是[j+4+i*6]
。顺便说一下,前4个堆只有7个卡长,而i乘以8是错误的。在那些表启动循环中,j应分别小于7和6而不是8和7。