好的大家好!我又遇到了另一个问题..我得到了一个未处理的异常。
我将问题追溯到它的来源:
openfile >> MapFile[loadCounterX][loadCounterY];
例外是:
Unhandled exception at 0x76ee15de in The Vanity Engine.exe: 0xC0000005: Access violation writing location 0x336e880c.
它说它违反了访问权限,但我正在访问的内容已在此处成功打开:
std::ifstream openfile(filename);
整个功能是:
//Load map
void Map::Load(const char *filename)
{
//Open the file
std::ifstream openfile(filename);
//Check if file is open
if(openfile.is_open())
{
//Get mapSizeX and Y from the file
openfile >> mapSizeX >> mapSizeY;
//While not at the end of the file
while(!openfile.eof())
{
//Store number at loadCounterX and loadCounterY
openfile >> MapFile[loadCounterX][loadCounterY]; //Error here
//Increment loadCounterX++
loadCounterX++;
//If loadCounterX is less than mapSizeX
if(loadCounterX >= mapSizeX)
{
//Set loadCounterX to 0
loadCounterX = 0;
//Increment loadCounterY
loadCounterY++;
}
}
}
}
MapFile位于Map.H
#ifndef MAP_H
#define MAP_H
#include "SFML\Graphics.hpp"
#include "Global.h"
#include <iostream>
#include <fstream>
class Map
{
public:
void Load(const char *filename);
void Draw(sf::RenderWindow &Window);
private:
int loadCounterX, loadCounterY;
int mapSizeX, mapSizeY;
int MapFile[100][100];
};
#endif
答案 0 :(得分:1)
loadCounter*
应该是本地的功能,或者每次加载时都至少初始化为0.
这是第一次可以正常工作,但是在下次加载之前变量不会重置为0,从而导致寻址未分配的空间。
旁注:
请为地图数据使用某种动态分配(例如std :: vector)。每次使用100x100都没有意义,是吗?