what is the ? thingy called?

keegan

Ok, i saw the ? thing used in some code, and i dont know what it does. I tried googling, but, um, i dont know what its called, and you cant google for "c++ ?" very easily. So, what is it called so i can google for it lol. *.* cin >> knowledge;

ZoogieZork

You mean like: int foo = (blah == 2) ? 1 : 0; or something like that? If so, that's a conditional expression, referred to variously as "immediate if", the "ternary operator", the "conditional operator", or simply the "?:" operator. It's basically an "if..then..else" type of expression that returns a value. Users of functional languages are very familiar with doing conditionals like this. - Mike

Michael Dunn

Search for "ternary operator". It ought to be called a "trinary operator" since it takes 3 arguments, but the incorrect term "ternary" has stuck for whatever reason. --Mike-- Ericahist | Homepage | RightClick-Encrypt | 1ClickPicGrabber CP SearchBar v2.0.2 released

keegan

ok, so in the example above, it basically means (if blah == 2) { foo = 1; } else { foo = 0; } pretty neat...thanks-o. *.* cin >> knowledge;

Lost User

Hi, do you mean the ? : operator????:) This is just an abbreviation for an if else statement used in C++. Consider the following for example: return x = a ? b< c : d > a; In this case x is either (ba) depending on the programming return value. Hope it helps. Regards. Alex

Michael Dunn

That is correct :) --Mike-- Ericahist | Homepage | RightClick-Encrypt | 1ClickPicGrabber CP SearchBar v2.0.2 released