CODEWITHSUNDEEP
c++
glennmark
glennmark

Reputation: 543

c++ comma operator in between cout and return value

return cout<<"NO"<<endl,0;

I have a few questions in this code. I've already tried searching for an explanation but none seems to explain it clearly. Does 'cout <<' return something? If so, does this code means that it could return either of the two values? If so, how does it know which value to return?

Upvotes: 0

Views: 85

Answers (1)

Maxim Egorushkin
Maxim Egorushkin

Reputation: 136238

Does cout << return something?

It returns std::ostream& reference to cout, unless the user overloaded operator<<(std::ostream&, T) to return something else.

If so, does this code means that it could return either of the two values?

No, the code always returns 0. Unless the user overloaded operator,.

If so, how does it know which value to return?

The built-in comma operator always returns the second value.

Upvotes: 4

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