分段错误（核心转储）C++
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Segmentation Fault (core dumped) C++
提问by user2330291
After researching I do believe I understand what the "Segmentation fault"error is. However, even after commenting out the code line by line, I can not seem to find where the fault is occurring in order to fix it. Is there something I am overlooking that is causing this error? Below is what shows up when I run the code:
经过研究，我相信我明白"Segmentation fault"错误是什么。但是，即使在逐行注释掉代码之后，我似乎也无法找到错误发生的位置来修复它。有什么我忽略的东西导致了这个错误？以下是我运行代码时显示的内容：
Ready to play (y/n)? y
3C AH 4C 3H 4H 2H 5H 2C 5C AC
Here's your cards: 3C AH 4C 3H 4H
Segmentation fault (core dumped)
准备好玩了吗（是/否）？是
3C AH 4C 3H 4H 2H 5H 2C 5C 交流
这是你的牌：3C AH 4C 3H 4H
分段错误（核心转储）
Pasted below is the code that I am referring to. The commented out parts were just me trying to find where the error was occurring:
下面粘贴的是我所指的代码。注释掉的部分只是我试图找出错误发生的位置：
#include <iostream>
#include <vector>
#include <algorithm>
#include <sstream>
#include <ctime>
#include <cstdlib>
#include <string>
#include <cstring>
#include <stdio.h>
using namespace std;
vector<string> bigDeck;
vector<string> cardDeck;
vector<string> playerHand;
vector<string> computerhand;
vector<string> shortvec;
const int DEAL_CARDS = 5;
void ResetDeck();
void Shuffle();
void DealACard();
void DealQCard();
void DealBCard();
string CStr(int);
int letsee2;
int main()
{
cout << "Ready to play (y/n)? ";
char yn;
cin >> yn;
if (yn == 'n' || yn != 'y') return 0;
ResetDeck();
srand(time(0));
Shuffle();
for (int f=0; f < 10; f++)
{
cout << cardDeck[f] << " ";
}
cout << "\n\nHere's your cards: ";
for (int i=0; i < DEAL_CARDS; i++)
{
DealACard();
cout << playerHand[i] << " ";
}
cout<<"\n\nHere's the Computer's cards: ";
for (int k=0; k < DEAL_CARDS; k++)
{
DealBCard();
cout << computerhand[k] << " ";
}
for (int u=0; u < DEAL_CARDS; u++)
{
DealQCard();
}
cout<<shortvec.size()<<endl;
cout<<endl<<endl;
//do
//{
for (int woh=0; woh < DEAL_CARDS; woh++)
{
if ((playerHand[woh][0]=='A') && (computerhand[woh][0]=='A'))
{
cout<<"War!"<<endl;
}
else if ((playerHand[woh][0]=='A') && (computerhand[woh][0]!='A'))
{
cout<<"Player wins"<<endl;
/*playerHand.push_back(computerhand[woh]);
computerhand.erase(computerhand.begin()+(woh-1));*/
}
else if ((playerHand[woh][0]!='A') && (computerhand[woh][0]=='A'))
{
cout<<"Computer Wins"<<endl;
/*computerhand.push_baci(playerHand[woh]);
playerHand.erase(playerHand.begin()+(woh-1));*/
}
else
{
if ((atoi(playerHand[woh].c_str())) > (atoi(computerhand[woh].c_str())))
{
cout<<"Player wins!"<<endl;
/*playerHand.push_back(computerhand[woh]);
computerhand.erase(computerhand.begin()+(woh-1));*/
}
else if ((atoi(playerHand[woh].c_str())) < (atoi(computerhand[woh].c_str())))
{
cout<<"Computer wins!"<<endl;
/*computerhand.push_back(playerHand[woh]);
playerHand.erase(playerHand.begin()+(woh-1));*/
}
else
{
cout<<"War!"<<endl;
}
}
/*if (playerHand.size() > computerhand.size())
shortvec = computerhand;
else
shortvec = playerHand;
cout<<endl<<endl;
*/
}
/*for (int z=0; z < playerHand.size(); z++)
{
cout << playerHand[z] << " ";
}
cout<<"\n\nHere's the Computer's cards: ";
for (int y=0; y < computerhand.size(); y++)
{
cout << computerhand[y] << " ";
}*/
cout<<endl<<endl;
//}
//while(((playerHand.size())!=10) || (computerhand.size())!=10);
return 0;
}
void Shuffle()
{
random_shuffle(cardDeck.begin(),cardDeck.end());
}
void DealBCard()
{
computerhand.push_back(cardDeck[0]);
cardDeck.erase(cardDeck.begin());
}
void DealACard()
{
playerHand.push_back(cardDeck[0]);
cardDeck.erase(cardDeck.begin());
}
void DealQCard()
{
shortvec.push_back(bigDeck[0]);
bigDeck.erase(bigDeck.begin());
}
string CStr(int n)
{
stringstream s;
s << n;
return s.str();
}
void ResetDeck()
{
cardDeck.clear();
playerHand.clear();
computerhand.clear();
for (int i=2; i<6; ++i)
{
cardDeck.push_back(CStr(i) + "H");
cardDeck.push_back(CStr(i) + "C");
}
cardDeck.push_back("AH");
cardDeck.push_back("AC");
}
采纳答案by Joseph Mansfield
You have a std::vectorcalled bigDeckand in DealQCardyou attempt to access its 0th element, despite the fact it has no elements. Did you mean to put some cards in bigDeck?
您有一个std::vector被调用的对象，bigDeck并DealQCard尝试访问它的第 0 个元素，尽管它没有元素。你是想放一些卡片bigDeck吗？
回答by Sohail xIN3N
Trying to access non-existent memory or memory which is being used by other process also causes the Segmentation Fault (core dumped).
尝试访问不存在的内存或其他进程正在使用的内存也会导致分段错误（核心转储）。
Core dumpedmeans that the program state has been recorded, i.e, its resources that were in memory and processor.
核心转储意味着程序状态已被记录，即其在内存和处理器中的资源。
