Trouble with return statement

[Spev]

Can anyone help me understand the following code? I don't understand the return statement. Typically I am just used to returning a single variable. I'm unfamiliar with the question mark and semicolon here.    

 

    int height( AvlNode *t ) const
    {
		return t == nullptr ? -1 : t->height;
    }

 

[miles7191]

The ? is used as an inline if statement. So if t == nullptr then return -1 else t->height. 

[P4ZD4]

Its a if/else shorthand using ternary operators

 

(statement) ? (statement true value) : (statement false value)

 

[Spev]

7 minutes ago, miles7191 said:

The ? is used as an inline if statement. So if t == nullptr then return -1 else t->height. 

Oh ok. I googled inline if statement and got some more info after that. I've never seen it before. Pretty simple but looked really bizarre the first time seeing it. Thanks for the clarification.