1
所以我有一个递归函数,导致堆栈溢出错误。我已经尝试在visual studio 2010中应用尾递归和0x优化。仍然没有运气。任何帮助,将不胜感激。我可以做一个while循环,但我想学习递归函数。试图防止堆栈溢出与尾递归
#include <cstdio>
#include <cstdlib>
#include <stdio.h>
#include <string.h>
#include <Windows.h>
#define BOARD_SIZE 64
int horizontal[8];
int vertical[8];
bool board[BOARD_SIZE];
typedef struct _MoveOrder
{
int row;
int col;
int move;
} MoveOrder;
MoveOrder sMoveOrder[BOARD_SIZE];
void MoveHelper();
void Move(int currentMove);
void main()
{
horizontal[0] = 2;
horizontal[1] = 1;
horizontal[2] = -1;
horizontal[3] = -2;
horizontal[4] = -2;
horizontal[5] = -1;
horizontal[6] = 1;
horizontal[7] = 2;
vertical[0] = -1;
vertical[1] = -2;
vertical[2] = -2;
vertical[3] = -1;
vertical[4] = 1;
vertical[5] = 2;
vertical[6] = 2;
vertical[7] = 1;
memset(sMoveOrder, 0, sizeof(MoveOrder) * BOARD_SIZE);
for(int i = 0; i < BOARD_SIZE; i++)
{
sMoveOrder[i].move = -1;
}
for(int i = 0; i < BOARD_SIZE; i++)
{
board[i] = false;
}
sMoveOrder[0].col = 0;
sMoveOrder[0].row = 0;
MoveHelper();
system("pause");
return;
}
void MoveHelper()
{
return Move(0);
}
static void Move(int currentMove)
{
int tempRow = 0;
int tempCol = 0;
int tempMove = sMoveOrder[currentMove].move;
bool bChangeRoute = true;
if(tempMove == -1)
{
tempMove = 0;
}
else
{
++tempMove;
}
for(int i = tempMove; i < 8; i++)
{
tempCol = sMoveOrder[currentMove].col + horizontal[i];
tempRow = sMoveOrder[currentMove].row + vertical[i];
if(tempRow >= 0 && tempRow <= 7)
{
if(tempCol >= 0 && tempCol <= 7)
{
if(!board[tempCol + (tempRow * 8)])
{
board[tempCol + (tempRow * 8)] = true;
sMoveOrder[currentMove].move = i;
++currentMove;
sMoveOrder[currentMove].col = tempCol;
sMoveOrder[currentMove].row = tempRow;
bChangeRoute = false;
if(currentMove >= BOARD_SIZE - 1)
{
printf("full\n");
for(int i = 0; i < BOARD_SIZE; i++)
{
if(!board[i])
{
printf("%d\n", i);
}
}
printf("full complete\n");
system("pause");
return;
}
break;
}
}
}
}
if(bChangeRoute)
{
board[sMoveOrder[currentMove].col + (sMoveOrder[currentMove].row * 8)] = false;
sMoveOrder[currentMove].move = -1;
--currentMove;
if(currentMove <= 0)
{
currentMove = 0;
sMoveOrder[currentMove].col += 1;
if(sMoveOrder[currentMove].col >= 8)
{
sMoveOrder[currentMove].col = 0;
sMoveOrder[currentMove].row += 1;
if(sMoveOrder[currentMove].row >= 8)
{
printf("broken: %d\n", currentMove);
system("pause");
return;
}
}
}
}
return Move(currentMove);
}
当我看到标题,我首先想到的都相当给** ** stackoverflow.com然后到实际问题。 ^^ – Aufwind 2012-01-09 00:32:25
在我看来,由于某种原因没有进行尾部调用优化,因为它应该永远循环而不是给出堆栈溢出错误。我试图编译,看看发生了什么事情,但我缺少的代码的某些部分: - 板 - sMoveOrder - BOARD_SIZE - sMoveOrder - 水平 - 垂直请包括所有的代码,所以我们可以试着帮你准确你正在使用的代码而不是我们猜测的代码。 :) – Pedrom 2012-01-09 11:59:38