How do I make a function int return bool?

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1.00/5 (1 vote)

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I was asked to make a function int return bool and I can't find a solution, I though you can't return bool in a function int.
I just need to know if is posivel.

What I have tried:

I tried to search everywhere but I couldn't find a solution and I couldn't either make one.

Posted 28-Apr-22 8:35am

Antonio_Rodrigues

Updated 28-Apr-22 10:08am

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The Other John Ingram 28-Apr-22 14:45pm

return true
return false
return (test == 0)

The Other John Ingram 28-Apr-22 14:50pm

if (test == 0)
return 1; // true
else
return 0; // false

hope this helps

Antonio_Rodrigues 28-Apr-22 15:20pm

int testSum(int[] numbers = null, int b = 2)
{
numbers = new int[] { 8, 3, 9, 6, 7, 4 };

for ( int i = 0; i < 5; i++)
{
if(numbers[i] % b == 0)
{
return true;
}
else
{
return false;
}

}
}

what I have is this I just can't make it work

Maciej Los 28-Apr-22 15:45pm

This should be a part of your question - inside a "What i have tried" section.

BTW: do you want to return boolean value if every number in an array divided by b is equal to zero?

Maciej Los 28-Apr-22 15:52pm

You mean this:

void Main()
{

	int[] numbers = new int[] { 8, 3, 9, 6, 7, 4 };
	testSum(numbers).Dump();
}

int testSum(int[] numbers = null, int b = 2)
{
	return Convert.ToInt32(numbers.All(x => x % b == 0));
}

PIEBALDconsult 28-Apr-22 19:50pm

Is this related to
https://www.codeproject.com/Questions/5330708/Error-cs0029-cannot-implicitly-convert-type-bool-t

2 solutions

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OriginalGriff · Answer 1 · 2022-04-28T09:45:00

Solution 1

Something like this:

C#

private bool Foo(int x)
   {
   return x == 666;
   }

Posted 28-Apr-22 9:45am

OriginalGriff

Comments

Maciej Los 28-Apr-22 15:57pm

If i understand the question well, a function should return int.

Maciej Los · Answer 2 · 2022-04-28T10:08:00

If i understand you well...
Try this:

C#

Console.WriteLine($"true = {Convert.ToInt32(true)}; false = {Convert.ToInt32(false)}");
//prints: true = 1; false = 0

So, if you want to return boolean value out of int function, use 0 or 1. ;)

C#

int testSum(int[] numbers = null, int b = 2)
{
	return numbers.All(x => x % b == 0) ? 1 : 0;
}

If i misunderstood your question, please explain it better.