How is it that this code seems to work?

Newsgroup: comp.lang.c++

Subject: How is it that this code seems to work?

From: bobl0456@...

Date: Tue, 10 Dec 2013 13:34:25 -0800 (PST)



A student submitted this code:



bool isPalindrome(string word)

{

string::iterator forwardIt = word.begin();

string::reverse_iterator reverseIt = word.rbegin();



while (forwardIt != word.end())

{

if (*forwardIt != *reverseIt)

{

return false;

}

else

{

++forwardIt;

++reverseIt;

}

}

}



The function seems to work, even though I don't believe it should.



Specifically, I believe the code should be instead:



bool isPalindrome(string word)

{

string::iterator forwardIt = word.begin();

string::reverse_iterator reverseIt = word.rbegin();



while (forwardIt != word.end())

{

if (*forwardIt != *reverseIt)

{

return false;

}

else

{

++forwardIt;

++reverseIt;

}

}



return true; // THE CHANGE I MADE

}



The if statement that invokes this function appears to work correctly:



if (isPalindrome(substring))



Does anyone have a clue as to how this works despite the missing return statement?



Thanks in advance.

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