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Asked: 2026-05-11T03:10:45+00:00

I’ve singled out a runtime error on this line of my code: for (synsAuxCopyIndex=1;

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I’ve singled out a runtime error on this line of my code:

for (synsAuxCopyIndex=1; synsAuxCopyIndex<synsAux.size(); synsAuxCopyIndex++)

Which is runnhing inside the pushSynonyms(string synline, vector<WordInfo> &wordInfoVector) function. I don’t get why is this particular line generating the error, as I don’t think I’m indexing anything out of range.

The debugger is saying:

Uncontrolled Exception 0x00411cbf in program.exe: 0xC0000005: Infracción de acceso al leer la ubicación 0x00000000.

I guess ‘Infracción de acceso’ will translate as Unauthorized access on an English debugger.

The input file is

dictionary.txt

1 cute 2 hello 3 ugly 4 easy 5 difficult 6 tired 7 beautiful synonyms 1 7 7 1 antonyms 1 3 3 1 7 4 5 5 4 7 3 
#include <iostream> #include <fstream> #include <string> #include <sstream> #include <vector>  using namespace std;  class WordInfo{  public:                   WordInfo() {}    ~WordInfo() {}    int id() const { return myId; }    void readWords(istream &in) {     in >> myId >> word;        }    vector<int>& getSynonyms () {     return mySynonyms;   }    vector<int>& getAntonyms() {      return myAntonyms;   }    string getWord() {     return word;   }    void pushSynonyms (string synline, vector<WordInfo>& wordInfoVector) {     stringstream synstream(synline);     vector<int> synsAux;     int num;     while (synstream >> num)       synsAux.push_back(num);     int wordInfoVectorIndex;     int synsAuxCopyIndex;     for (wordInfoVectorIndex=0;          wordInfoVectorIndex < wordInfoVector.size();          wordInfoVectorIndex++) {       if (synsAux[0] == wordInfoVector[wordInfoVectorIndex].id()) {         // this is the line that's generating a Runtime Error, Why?                                                                for (synsAuxCopyIndex = 1;              synsAuxCopyIndex < synsAux.size();              synsAuxCopyIndex++) { //        wordInfoVector[wordInfoVectorIndex].mySynonyms.push_back( //            synsAux[synsAuxCopyIndex]);         }                                                                 }          }   }    void pushAntonyms (string antline, vector<WordInfo> wordInfoVector) {     stringstream antstream(antline);     vector<int> antsAux;     int num;     while (antstream >> num)       antsAux.push_back(num); //    for (int i=0; i<antsAux.size(); i++){ //      cout<<antsAux[i]<<endl;   //    }   }    //--dictionary output function   void printWords (ostream &out) {     out<<myId<< ' '<<word;        }    //--equals operator for String   bool operator == (const string &aString) const {     return word ==aString;    }    //--less than operator   bool operator < (const WordInfo &otherWordInfo) const {     return word<otherWordInfo.word;   }    //--more than operator   bool operator > (const WordInfo &otherWordInfo) const {     return word>otherWordInfo.word;   }   public:    vector<int> mySynonyms;   vector <int> myAntonyms;   private: //vector <int> mySynonyms; //vector <int> myAntonyms;   string word;   int myId; };  //--Definition of input operator for WordInfo istream & operator >> (istream &in, WordInfo &word) {   word.readWords(in);  }  //--Definition of output operator ostream & operator << (ostream &out, WordInfo &word) {   word.printWords(out);   }  int main() {   string wordFile;   cout << 'enter name of dictionary file: ';   getline (cin, wordFile);   ifstream inStream(wordFile.data());   if (!inStream.is_open()) {     cerr << 'cannot open ' << wordFile << endl;      exit(1);                         }    vector <WordInfo> wordInfoVector;    WordInfo aword;    while (inStream >> aword && (!(aword == 'synonyms')))     wordInfoVector.push_back(aword);    inStream.clear();    int i=0;             while (i < wordInfoVector.size()) {     cout << wordInfoVector[i] << endl;     i++;   }    vector <int> intVector;   string synLine;     while (getline(inStream, synLine) && (synLine != ('antonyms')))     aword.pushSynonyms(synLine, wordInfoVector);    int theIndex;   for (theIndex=0;        theIndex < wordInfoVector[0].mySynonyms.size();        theIndex++)     cout << 'the synonyms of 1 are ' <<         wordInfoVector[0].mySynonyms[theIndex] << endl;   cout << 'the size of mySynonyms of 1 is ' <<       wordInfoVector[0].mySynonyms.size() << endl;    for (theIndex=0;        theIndex < wordInfoVector[0].mySynonyms.size();        theIndex++)       cout << 'the synonyms of 7 are ' <<         wordInfoVector[6].mySynonyms[theIndex] << endl;   cout << ' the size of mySynonyms of 7 is ' <<       wordInfoVector[6].mySynonyms.size() << endl;    string antLine;   while (getline(inStream, antLine))     aword.pushAntonyms(antLine, wordInfoVector);        wordInfoVector[0].mySynonyms.push_back(1);   system('PAUSE');   return 0;           }
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1 Answer

  1. If you add some debugging output to your program, you’d notice you never enter or even reach the ‘culprit’ for-loop.

    The problem is actually the test against ‘synsAux[0]’ right above it – synxAux.size() is zero, so accessing the zeroth element is an index out-of-bounds error.

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