no error but program not moving further

[praneshiitm]

i am very sorry to post this long code but i was in great pain figuring out whats happening...i checked it using breakpoints the code is not moving further line 132...can some one please tell me what could be the possible reasons...and what can i try doing?

// quiz class.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <ctime> 
#include<iostream>
#include <sstream>
using namespace std;
#include<fstream>
#include<string>
#include<iomanip>
template <class T>

string ToString(T thing)        //to convert int to string to start printing when a random no is found
	{
	ostringstream oss;
	oss << thing;
	return oss.str();
	}

class Scoremanager
{
private:

public:
	void showscoreboard();
};

class Player
{
private:
	char* m_name;
	int m_score;

public:
	friend class Scoremanager;
	Player()
	{
		m_name = " ";
		m_score = 0;
	}
	void setscore(int score)
	{
		m_score += score;
	}
	void setname(char* name)
	{
		m_name = name;
	}
	int getscore()
	{
		return m_score;
	}
	char* getname()
	{
		return m_name; 
	}
};

class QnA
{
private:
	int m_Qno;
	int category;

public:
	void showQuestion(int cQno, string cquesfname)
	{
		//int c_randnum = Qno;
		readques(cQno,cquesfname);
	}
	void showAnswer(int cQno, string cans, string cquesfname, string cansfname)
	{
		readans(cQno,cans,cquesfname,cansfname);
	}
	void readques(int randNum,string filename)
	{
		int n=0;
	string ans;
	string saveans;
	string print;
	ifstream ques(filename);   //passing a string containing the name of the file to be opened for reading the questions from
	ifstream anss("ans.txt");
	
	int a=0;
	string hash = "*";
	string chk;
	int c[200]={0};
			
	while(a<1) // To get you all the lines.
    {
again:
			getline(ques,chk); // Saves the line in STRING.
	
           while(a<1)
			{
				if (chk == ToString(randNum))
				{
					getline(ques,print); // Saves the line in STRING.
					if (print != hash)
						cout<<print<<endl; // Prints our STRING.
					else
						goto ibreak;
				}
				else
					goto again;
			}
    }
	ibreak:
	;
	}

void readans(int randNum,string ans,string cquesfname,string cansfname)
{
	int n=0;
	string saveans="";
	string print="";
	ifstream ques(cquesfname);   //passing a string containing the name of the file to be opened for reading the questions from
	ifstream anss(cansfname);
	
	int a=0;
	string hash = "*";
	string chk="";
	int c[200]={0};
		
	ques.seekg(0);
	anss.seekg(0);
	n=n+1;

	while(a<1)
			{
				getline(anss,saveans); // Saves the line in STRING.
				if (saveans == ToString(randNum))
				{
					getline(anss,saveans);
					if (saveans == ans)
					{
						cout<<"correct!"<<endl; 
						cout<<"# next question # "<<endl;
					}
					else
					{
						cout<<"wrong answer!"<<endl; // Prints our STRING
						cout<<"# next question # "<<endl;
					}
						break;
				}
			}
}
};

class SciTech     : public QnA
{
public:
	string quesfilename()
	{
		return "question_read.txt";
	}

	string ansfilename()
	{
		return "ans.text";
	}
};
class History     : public QnA{};
class Sports      : public QnA{};
class Geography   : public QnA{};
class Music       : public QnA{};
class Politics    : public QnA{};
class Mathematics : public QnA{};
class Movies      : public QnA{};

int main()
{
	SciTech     o_SciTech;  
	History     o_History;  
	Sports      o_Sports;
	Geography   o_Geography;  
	Music       o_Music;       
	Politics    o_Politics;    
	Mathematics o_Mathematics; 
	Movies      o_Movies;

	int num_players ;
	string player_name = "";
	int choice;
	int min=1,max=20;
	string main_quesfname;
	string main_ansfname;
	string ans;
	
	cout << "welcome to the quiz" << endl;
	cout << "enter the no of players" << endl;
	cin >> num_players ;

	for(int i=1; i<=num_players; i++)
	{
		cout << "enter the name of " << i << "th player" << endl;
		cin >> player_name;
	}

	Player *player = new Player[num_players];

	cout << "Player 1 " << endl;
	cout << "choose a category for the round 1 from the list" << endl;
	cout << " 1) Science and technology " << endl
		 << " 2) History "                << endl
		 << " 3) Sports "                 << endl
		 << " 4) Movies "                 << endl
		 << " 5) Geography "              << endl
		 << " 6) Music "                  << endl
		 << " 7) Politics "               << endl
		 << " 8) Mathematics "            << endl;
	cin >> choice;

	cout<< "lets begin Round 1" << endl;
	switch (choice)
	{
		case 1:
			for(int i=1; i<=10; i++)
			{
				int Q_Rand = (rand()%(max-min + 1)) + min;
				main_quesfname = o_SciTech.quesfilename();
				main_ansfname = o_SciTech.ansfilename();
				o_SciTech.showQuestion(Q_Rand,main_quesfname);
				cout << "what is your answer a, b, c or d " << endl;
				cin >> ans;
				o_SciTech.showAnswer(Q_Rand,ans,main_quesfname,main_ansfname);
			}
				break;
		case 2:
				//o_History.showQuestion(Q_Rand,choice);
				break;
		case 3:
				//o_Sports.showQuestion(Q_Rand,choice);
				break;
		case 4:
				//o_Movies.showQuestion(Q_Rand,choice);
				break;
		case 5:
				//o_Geography.showQuestion(Q_Rand,choice);
				break;
		case 6:
				//o_Music.showQuestion(Q_Rand,choice);
				break;
		case 7:
				//o_Politics.showQuestion(Q_Rand,choice);
				break;
		case 8:
				//o_Mathematics.showQuestion(Q_Rand,choice);
				break;
	}

	return 0;
}

	

[alfredokang]

Try this one;...

#include <ctime>
#include <iostream>
#include <sstream>
#include <fstream>
#include <string>
#include <iomanip>
#include <cstdlib>

using namespace std;

template <class T>

string ToString(T thing) //to convert int to string to start printing when a random no is found
{
ostringstream oss;
oss << thing;
return oss.str();
}

class Scoremanager
{
private:

public:
void showscoreboard();
};

class Player
{
private:
char* m_name;
int m_score;

public:
friend class Scoremanager;
Player()
{
m_name = " ";
m_score = 0;
}
void setscore(int score)
{
m_score += score;
}
void setname(char* name)
{
m_name = name;
}
int getscore()
{
return m_score;
}
char* getname()
{
return m_name;
}
};

class QnA
{
private:
int m_Qno;
int category;

public:
void showQuestion(int cQno, string cquesfname)
{
//int c_randnum = Qno;
readques(cQno,cquesfname);
}
void showAnswer(int cQno, string cans, string cquesfname, string cansfname)
{
readans(cQno,cans,cquesfname,cansfname);
}
void readques(int randNum,string filename)
{
int n=0;
string ans;
string saveans;
string print;
ifstream ques("filename"); //passing a string containing the name of the file to be opened for reading the questions from
ifstream anss("ans.txt");

int a=0;
string hash = "*";
string chk;
int c[200]={0};

while(a<1) // To get you all the lines.
{
again:
getline(ques,chk); // Saves the line in STRING.

while(a<1)
{
if (chk == ToString(randNum))
{
getline(ques,print); // Saves the line in STRING.
if (print != hash)
cout<<print<<endl; // Prints our STRING.
else
goto ibreak;
}
else
goto again;
}
}
ibreak:
;
}

void readans(int randNum,string ans,string cquesfname,string cansfname)
{
int n=0;
string saveans="";
string print="";
ifstream ques("cquesfname"); //passing a string containing the name of the file to be opened for reading the questions from
ifstream anss("cansfname");

int a=0;
string hash = "*";
string chk="";
int c[200]={0};

ques.seekg(0);
anss.seekg(0);
n=n+1;

while(a<1)
{
getline(anss,saveans); // Saves the line in STRING.
if (saveans == ToString(randNum))
{
getline(anss,saveans);
if (saveans == ans)
{
cout<<"correct!"<<endl;
cout<<"# next question # "<<endl;
}
else
{
cout<<"wrong answer!"<<endl; // Prints our STRING
cout<<"# next question # "<<endl;
}
break;
}
}
}
};

class SciTech : public QnA
{
public:
string quesfilename()
{
return "question_read.txt";
}

string ansfilename()
{
return "ans.text";
}
};
class History : public QnA{};
class Sports : public QnA{};
class Geography : public QnA{};
class Music : public QnA{};
class Politics : public QnA{};
class Mathematics : public QnA{};
class Movies : public QnA{};

int main()
{
SciTech o_SciTech;
History o_History;
Sports o_Sports;
Geography o_Geography;
Music o_Music;
Politics o_Politics;
Mathematics o_Mathematics;
Movies o_Movies;

int num_players ;
string player_name = "";
int choice;
int min=1,max=20;
string main_quesfname;
string main_ansfname;
string ans;

cout << "welcome to the quiz" << endl;
cout << "enter the no of players" << endl;
cin >> num_players ;

for(int i=1; i<=num_players; i++)
{
cout << "enter the name of " << i << "th player" << endl;
cin >> player_name;
}

Player *player = new Player[num_players];

cout << "Player 1 " << endl;
cout << "choose a category for the round 1 from the list" << endl;
cout << " 1) Science and technology " << endl
<< " 2) History " << endl
<< " 3) Sports " << endl
<< " 4) Movies " << endl
<< " 5) Geography " << endl
<< " 6) Music " << endl
<< " 7) Politics " << endl
<< " 8) Mathematics " << endl;
cin >> choice;

cout<< "lets begin Round 1" << endl;
switch (choice)
{
case 1:
for(int i=1; i<=10; i++)
{
int Q_Rand = (rand()%(max-min + 1)) + min;
main_quesfname = o_SciTech.quesfilename();
main_ansfname = o_SciTech.ansfilename();
o_SciTech.showQuestion(Q_Rand,main_quesfname);
cout << "what is your answer a, b, c or d " << endl;
cin >> ans;
o_SciTech.showAnswer(Q_Rand,ans,main_quesfname,main_ansfname);
}
break;
case 2:
//o_History.showQuestion(Q_Rand,choice);
break;
case 3:
//o_Sports.showQuestion(Q_Rand,choice);
break;
case 4:
//o_Movies.showQuestion(Q_Rand,choice);
break;
case 5:
//o_Geography.showQuestion(Q_Rand,choice);
break;
case 6:
//o_Music.showQuestion(Q_Rand,choice);
break;
case 7:
//o_Politics.showQuestion(Q_Rand,choice);
break;
case 8:
//o_Mathematics.showQuestion(Q_Rand,choice);
break;
}

return 0;
}

[praneshiitm]

can u tell me what changes have u done because its now stuck even before reaching the point i mentioned...it asks lets begin round 1 and stands still....

[praneshiitm]

ok i got it...have u changed the file name of the one which reads questions...i.e from "question_read.txt" to "filename"....?
actually 'filename' stores the name of the file containing the questions...

[alfredokang]

is it now working....?

[praneshiitm]

no