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Looping Voids Will Not Work

ComradeTaco (8)
Hi. I have a program that is running using multiple void functions, but I want it to repeat. It worked perfectly before I tried to ad the loop statement, but now refuses to work with it. It will always highlight the parenthesis after the VoidSetCards, and I do not understand why. Every parenthesis is matched, as I added two after creating the loop.
Error:
error C2601: 'createSetCards' : local function definitions are illegal
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#include <iostream>
#include <iomanip>
using namespace std;
void createSetCards();
void shuffle();
void display();
void findSet();
void display12();

int cards[81];
int cardPosition[81];

int main()
{
	createSetCards();
	display();
	shuffle();
	cout<<endl<<endl<<endl;
	display12();
	findSet();
	
	system("pause");
	return 0;
}

void createSetCards()
{
	int i =0;
	for(int a = 1; a < 4; a++)
	{
		for(int b = 1; b < 4; b++)
		{
			for(int c = 1; c < 4; c++)
			{
				for(int d = 1; d < 4; d++)
				{
					cards[i]=1000*a+100*b+10*c+d;
					i++;
				}
			}
		}
	}

	return;
}

void display()
{
	for(int j=0; j<81; j++)
	{
		cout << setw(7) << cards[j];
		if(j%9==8)
		{
			cout<<endl;
		}
	}


	return;
}

void shuffle()
{
	srand(time(0));
	for(int q=0; q<81; q++)
	{
		cardPosition[q]=rand()%81;
		for(int k=0; k<q; k++)
		{
			if(cardPosition[q]==cardPosition[k])
			{
				q--;
				k=q;
			}
		}
	}
	return;
}

void display12()
{
	for(int w=0; w<12; w++)
	{
		cout<<setw(7)<<cards[cardPosition[w]];
		if (w%6==5)
		{
			cout<<endl;
		}
	}
	cout<<endl<<endl;
	return;
}

void findSet()
{
	int flag=0;
	for(int x=0; x<10; x++)
	{
		for(int y=x+1; y<11; y++)
		{
			for(int z=y+1; z<12; z++)
			{
				int total,t1000,t100,t10,t;
				total = cards[cardPosition[x]] +cards[cardPosition[y]] +cards[cardPosition[z]];
				t1000=total/1000;
				total=total%1000;
				t100=total/100;
				total=total%100;
				t10=total/10;
				t=total%10;
				if(t1000%3==0 && t100%3==0 && t10%3==0 & t%3==0)
				{
					cout<<cards[cardPosition[x]]<<setw(7)<<cards[cardPosition[y]]<<setw(7)<<cards[cardPosition[z]]
						<<" is a SET"<<endl;
						x=y=z=12;
						flag=1;
				}
			}
		}
	}
	if(flag==0)
	{
		cout<<" No set found"<<endl;
	}

	return;
			{
Last edited on
Peter87 (11235)
Define the function outside main(), and make sure it is declared before you call it.
Last edited on
ComradeTaco (8)
The function is declared outside of main before, I just didn't include it because I didn't want to post the whole of the code. This is just a section.
Last edited on
Wisely Done (85)
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void createSetCards()
		{
		int i =0;
		for(int a = 1; a < 4; a++)
			{


This is wrong. You can't define functions inside main().
ComradeTaco (8)
I edited it to include the whole of the code, maybe that will clarify.
Wisely Done (85)
I tried it and it works, but there are some simple mistakes. The closing brace at the end, and you should #include <ctime> and #include <cstdlib> and #include <windows.h> .
Last edited on
Peter87 (11235)
Why should he include windows.h?
ComradeTaco (8)
Yes, so my original version is fine.However, when I attempt to add a loop of the whole program, I simply cannot get it to properly function. The edited code is below, with the changes underlined.
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#include <iostream>
#include <iomanip>
using namespace std;
void createSetCards();
void shuffle();
void display();
void findSet();
void display12();

int cards[81];
int cardPosition[81];

int main()
{
	for(int b=0;b<1000;b++)
	{
		{
			createSetCards();
			display();
			shuffle();
			cout<<endl<<endl<<endl;
			display12();
			findSet();
	
			system("pause");
			return 0;
		}

	void createSetCards()
	{
		int i =0;
		for(int a = 1; a < 4; a++)
		{
			for(int b = 1; b < 4; b++)
			{
				for(int c = 1; c < 4; c++)
				{
					for(int d = 1; d < 4; d++)
					{
						cards[i]=1000*a+100*b+10*c+d;
						i++;
					}
				}
			}
		}

		return;
	}

	void display()
	{
		for(int j=0; j<81; j++)
		{
			cout << setw(7) << cards[j];
			if(j%9==8)
			{
				cout<<endl;
			}
		}


		return;
	}

	void shuffle()
	{
		srand(time(0));
		for(int q=0; q<81; q++)
		{
			cardPosition[q]=rand()%81;
			for(int k=0; k<q; k++)
			{
				if(cardPosition[q]==cardPosition[k])
				{
					q--;
					k=q;
				}
			}
		}
		return;
	}

	void display12()
	{
		for(int w=0; w<12; w++)
		{
			cout<<setw(7)<<cards[cardPosition[w]];
			if (w%6==5)
			{
				cout<<endl;
			}
		}
		cout<<endl<<endl;
		return;
	}

	void findSet()
	{
		int flag=0;
		for(int x=0; x<10; x++)
		{
			for(int y=x+1; y<11; y++)
			{
				for(int z=y+1; z<12; z++)
				{
					int total,t1000,t100,t10,t;
					total = cards[cardPosition[x]] +cards[cardPosition[y]] +cards[cardPosition[z]];
					t1000=total/1000;
					total=total%1000;
					t100=total/100;
					total=total%100;
					t10=total/10;
					t=total%10;
					if(t1000%3==0 && t100%3==0 && t10%3==0 & t%3==0)
					{
						cout<<cards[cardPosition[x]]<<setw(7)<<cards[cardPosition[y]]<<setw(7)<<cards[cardPosition[z]]
							<<" is a SET"<<endl;
							x=y=z=12;
							flag=1;
					}
				}
			}
		}
		if(flag==0)
		{
			cout<<" No set found"<<endl;
		}

		return;
	}
}
Last edited on
Peter87 (11235)
Only put the function calls inside the loop. The function definitions should still be outside main.
Wisely Done (85)
I thought <windows.h> is needed for system("pause"). It won't hurt anyway, though system("pause") should be avoided.
Peter87 (11235)
It hurts if you don't use Windows. std::system is a function declared in <cstdlib>.
sasukebartioso (22)
system commands should be avoided when making pograms for wider use.If he is making the program for himself they are fine
ComradeTaco (8)
Peter87, don't function definitions always have to follow the function call? How can I place the function calls exclusively within the loop?
ComradeTaco (8)
My most recent attempt builds, but it does not successfully execute the code 1000 times.
Clearly I'm not getting something here.
Edit: What was changed was in bold

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#include <iostream>
#include <iomanip>
#include <iostream>
#include <iomanip>
using namespace std;
void repeat();
void createSetCards();
void shuffle();
void display();
void findSet();
void display12();

int cards[81];
int cardPosition[81];

int main()
{
	createSetCards();
	display();
	shuffle();
	cout<<endl<<endl<<endl;
	display12();
	findSet();
	for(int d=0;d<1000;d++)
	{
		void repeat();
		void createSetCards();
		void shuffle();
		void display();
		void findSet();
		void display12();
	}
	system("pause");
	return 0;
}
	
void createSetCards()
{
	int i =0;
	for(int a = 1; a < 4; a++)
	{
		for(int b = 1; b < 4; b++)
		{
			for(int c = 1; c < 4; c++)
			{
				for(int d = 1; d < 4; d++)
				{
					cards[i]=1000*a+100*b+10*c+d;
					i++;
				}
			}
		}
	}

	return;
}

void display()
{
	for(int j=0; j<81; j++)
	{
		cout << setw(7) << cards[j];
		if(j%9==8)
		{
			cout<<endl;
		}
	}


	return;
}

void shuffle()
{
	srand(time(0));
	for(int q=0; q<81; q++)
	{
		cardPosition[q]=rand()%81;
		for(int k=0; k<q; k++)
		{
			if(cardPosition[q]==cardPosition[k])
			{
				q--;
				k=q;
			}
		}
	}
	return;
}

void display12()
{
	for(int w=0; w<12; w++)
	{
		cout<<setw(7)<<cards[cardPosition[w]];
		if (w%6==5)
		{
			cout<<endl;
		}
	}
	cout<<endl<<endl;
	return;
}

void findSet()
{
	int flag=0;
	for(int x=0; x<10; x++)
	{
		for(int y=x+1; y<11; y++)
		{
			for(int z=y+1; z<12; z++)
			{
				int total,t1000,t100,t10,t;
				total = cards[cardPosition[x]] +cards[cardPosition[y]] +cards[cardPosition[z]];
				t1000=total/1000;
				total=total%1000;
				t100=total/100;
				total=total%100;
				t10=total/10;
				t=total%10;
				if(t1000%3==0 && t100%3==0 && t10%3==0 & t%3==0)
				{
					cout<<cards[cardPosition[x]]<<setw(7)<<cards[cardPosition[y]]<<setw(7)<<cards[cardPosition[z]]
						<<" is a SET"<<endl;
						x=y=z=12;
						flag=1;
				}
			}
		}
	}
	if(flag==0)
	{
		cout<<" No set found"<<endl;
	}
	void repeat();

	return;
}
Last edited on
Wisely Done (85)
I suppose you were trying to call a function here: 
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void repeat();
          void createSetCards();
	  void shuffle();
          void display();
	  void findSet();
          void display12();


But, when calling a function, you musn't precede it by it's type.
It should be like this:
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repeat();
          createSetCards();
          shuffle();
	  display();
	  findSet();
		display12();


Last edited on
ComradeTaco (8)
Lovely! It works perfectly!
Thank you Wisely Done, and Peter 87, for your patience and diligence!
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