C++

Forum

 
Problem with Function code

incognitocpp (52)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
 
#include <iostream>
#include <string.h>
using namespace std;
string checker()
{
	for(int i=0;i<8;i++)
	{
		for(int j=0; j<8;j++)
		{
			if((j+i)%2==0)
				return "{}";
			else
				return "[]";
		}
		cout<<endl;
	}
}
int main()
{
	cout<<checker<<endl;
	return 0;
}

This function's purpose is to print a checkerboard but instead of doing so, it is printing out a 1! I need help asap if possible thanks!
Last edited on
coder777 (8442)
it obviously interprets the provided function pointer as a boolean expression.

To make it more clear:

cout<<checker<<endl; // This provides a function pointer

cout<<checker()<<endl; // This is a function call


Btw: the loops are useless due to the return statements.
Last edited on
closed account (3qX21hU5)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
 
#include <iostream>
#include <string.h>
using namespace std;
string checker() // Change this to void checker() since we won't be returning.
{
	for(int i=0;i<8;i++)
	{
		for(int j=0; j<8;j++)
		{
			if((j+i)%2==0)
				return "{}"; // Change this to cout
			else
				return "[]"; // Change this to cout
		}
		cout<<endl;
	}
}
int main()
{
	cout<<checker<<endl; // Remove the cout. Only have checker();
	return 0;
}


I not really sure what your function was suppose to do but I'm assuming that it is printing out the checkers board. Let me know if I am wrong or if you have more information that could help me give you a better answer.

If you don't understand anything also let me know and I will try and help to the best of my ability.
Last edited on
incognitocpp (52)
zereo, i did as you said and it produces an error: void value not ignored as it ought to be.
incognitocpp (52)
coder777, it still doesnt print the whole checkerboard. so confused just started making functions
coder777 (8442)
So do as Zereo suggested:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
 
#include <iostream>
#include <string.h>
using namespace std;
string void checker() // Change this to void checker() since we won't be returning.
{
	for(int i=0;i<8;i++)
	{
		for(int j=0; j<8;j++)
		{
			if((j+i)%2==0)
				return cout<< "{}"; // Change this to cout
			else
				return cout<< "[]"; // Change this to cout
		}
		cout<<endl;
	}
}
int main()
{
	checker();
	return 0;
}
incognitocpp (52)
Oh i see why the error was produced earlier. Thank you! I have a better understanding now, thank you all again.
Topic archived. No new replies allowed.