c++ - 递增循环的致命错误

当前，我正在尝试在Fighter.cpp文件中的sortFighters函数中创建一个对满是战斗机的 vector 进行排序的函数。一切似乎都能正确编译。但是，当它运行时，在上述.cpp文件的其中一行中出现致命错误。我确切地知道问题出在哪里，并在此处进行评论。
因此，我在这里要问的是在不添加任何其他功能的情况下可以解决此问题的方法。

这是我的Fighter.h文件:

#ifndef FIGHTER_H
#define FIGHTER_H

#include <iostream>
#include <ctime>
#include <string>
#include <cstdlib>
#include <fstream>
#include <vector>

class Fighter
{
protected:
        std::string name;
        int health, level;
        //int damage;
public:
        int  getHealth(int);
        void getEnemies(std::vector<Fighter> &);
        void printFighter(std::vector<Fighter> &);
        void sortFighters(std::vector<Fighter> &);
        //friend std::istream & operator >> (std::istream & strm, Fighter & x);
        //friend std::ostream & operator << (std::ostream & strm, const Fighter & f);
        //void attack();
        Fighter();
        ~Fighter();
};

class Player : public Fighter
{
    private:
        int experience;
    public:
        int  getHealth(int);
        void pri`enter code here`ntFighter();
        void getExperience(int);
        void playerAttack();
        Player();
        ~Player();
};

//class FightPub
//{
//  private:
//      Player player;
//      Fighter enemy;
//  public:
//      //void fight();
//      //void getStats();
//};
#endif

我的Fighter.cpp文件:

//dynamically locate an array that holds the number of fighters, and for each fighter in the array, assign from the .txt
//file the name and level from the fighter.
#include "Fighter.h"

#pragma region getEnemies
void Fighter::getEnemies(std::vector<Fighter> &baddie)
{
    Fighter x;
    std::ifstream inputFile;
    inputFile.open("EnemyFighters.txt");
    if(!inputFile)
    {
        std::cout << "error!" << std::endl;
    }
    else
    {
        while(!inputFile.eof())
        {
            std::string line;
            inputFile >> line;
            if (line == "<fighter>")
            {
                do
                {
                    inputFile >> line;
                    x.name = line;
                    inputFile >> line;
                    x.level = atoi(line.c_str());
                    inputFile >> line;
                    x.health = getHealth(this->level);
                    baddie.push_back(x);
                    inputFile >> line;
                }while(line != "</fighter>");
            }
        }
        inputFile.close();
    }
}
#pragma endregion

#pragma region getHealth

int Fighter::getHealth(int lv)
{
    if(lv >= 6)
    {
        std::cout << "\nHealth Bonus!";
        this->health = lv * 2;
    }
    /*else if (lv > 1)
        for (int i = 1; i < lv; i++)
        {this->health += 2;}*/
    return health;
}

#pragma endregion

#pragma region attack
//void Fighter::attack()
//{
//  int randomAttack = rand() % 4 + 1;
//
//  switch (randomAttack)
//  case 1:
//  {
//      std::cout << "Enemy uses critical attack!"
//  }
//}
#pragma endregion

#pragma region printFighter
void Fighter::printFighter(std::vector<Fighter> &baddie)
{
    //std::cout << this;
    for (int i=0; i<baddie.size(); i++)
    {
        std::cout << "\nName: " << baddie[i].name << std::endl
                  << "Level: " << baddie[i].level << std::endl
                  << "Health: " << baddie[i].health << std::endl;
    }
}
#pragma endregion

void Fighter::sortFighters(std::vector<Fighter> &x)
{
    Fighter * temp = new Fighter;
    bool swap;

    do
    {
        swap = false;
        std::cout << x.size() << std::endl;
        for (int i=0; i<=(x.size()); i++)
        {
            //if the level in the first is greater than the level in the next
            if(x[i].level > x[i+1].level)//I get a fatal error here when it tries to compare
                                         //the iterator with 1 that's outside its range
            {
                //assign the stats from the first to temp
                temp->name = x[i].name;
                temp->health = x[i].health;
                temp->level = x[i].level;
                //assign the stats from the next to the first
                x[i].name = x[i+1].name;
                x[i].health = x[i+1].health;
                x[i].level = x[i+1].level;
                //assign the ones in temp(the first) to the next
                x[i+1].name = temp->name;
                x[i+1].health = temp->health;
                x[i+1].level = temp->level;
                swap = true;
            }

            else if(x[i].level >= x[i+1].level)
            {
                temp->name = x[i].name;
                temp->health = x[i].health;
                temp->level = x[i].level;

                x[i].name = x[i+1].name;
                x[i].health = x[i+1].health;
                x[i].level = x[i+1].level;

                x[i+1].name = temp->name;
                x[i+1].health = temp->health;
                x[i+1].level = temp->level;
                swap = true;
            }

            else if (x[i].level < x[i+1].level)
            {
                //temp->name = x[i].name;
                //temp->health = x[i].health;
                //temp->level = x[i].level;

                //x[i].name = x[i+1].name;
                //x[i].health = x[i+1].health;
                //x[i].level = x[i+1].level;

                //x[i+1].name = temp->name;
                //x[i+1].health = temp->health;
                //x[i+1].level = temp->level;
                swap = false;
            }

            else if(x[i].level <= x[i+1].level)
            {
                /*temp->name = x[i].name;
                temp->health = x[i].health;
                temp->level = x[i].level;

                x[i].name = x[i+1].name;
                x[i].health = x[i+1].health;
                x[i].level = x[i+1].level;

                x[i+1].name = temp->name;
                x[i+1].health = temp->health;
                x[i+1].level = temp->level;*/
                swap = false;
            }
        }
    }while (swap);

    delete temp;
}
//std::istream & operator >>(std::istream & strm, Fighter x)
//{
//  //x.name += strm.c_str();
//  //x.level += atoi(strm.c_str());
//  strm >> x.name;
//  strm >> x.level;
//  return strm;
//}

//std::ostream & operator << (std::ostream & strm, const Fighter f)
//{
//  strm << "Name: " << f.name << std::endl;
//  strm << "Level: " << f.level << std::endl;
//  strm << "Health: " << f.health << std::endl;
//  return strm;
//}
#pragma region Fighter C&D
Fighter::Fighter()
{
    level = 1;
    health = 10;
}
Fighter::~Fighter()
{
}
#pragma endregion
//void operator <()
//{
//}
//
//void operator >()
//{
//}
//
//void operator <=()
//{
//}
//
//void operator >=()
//{
//}
//
//
//
int Player::getHealth(int lv)
{
    if(lv >= 6)
    {
        std::cout << "\nHealth Bonus!";
        this->health = lv * 2;
    }
    /*else if (lv > 1)
        for (int i = 1; i < lv; i++)
        {this->health += 2;}*/
    return health;
}

void Player::printFighter()
{
//std::cout << this;
      std::cout << "\nPlayer's stats: \n"
      << "Level: " << this->level << std::endl
      << "Health: " << this->health << std::endl
      << "Experience: " << this->experience <<std::endl;
}

void Player::getExperience(int dmg)
{
    experience += dmg;
    if (experience >= (level * 10))
    {
        std::cout << "Congratulations, Player! You're up a level!\n";
        level ++;
    }
}

#pragma region Player C&D
Player::Player()
{
    level = 1;
    health  = getHealth(level);
    experience = 0;
}
Player::~Player()
{
}
#pragma endregion


//Player::printFighter()
//{
//
//}

这是main.cpp:

#include "Fighter.h"

int main()
{
    unsigned seed = time(0);
    srand(seed);

    std::vector<Fighter> baddie;

    Fighter * enemy = new Fighter;
    Player * me = new Player;
    enemy->getEnemies(baddie);
    enemy->sortFighters(baddie);
    enemy->printFighter(baddie);
    me->printFighter();
    delete enemy;
    delete me;
    return 0;
}

最佳答案

    for (int i=0; i<=(x.size()); i++)
    {
        if(x[i].level > x[i+1].level)
        {

um .. Size()从1开始计数。索引从0开始计数。因此，您需要使用i < x.size()而不是<=。但是，在接下来的一行中，您说了x[i+1]，因此i甚至无法到达最后一项，因此必须在此之前停止一个:

    for (int i=0; i < x.size()-1; i++)