return function

[bezerkfury24]

please help me i want to know what the question mark and the colon does.

return ((value1 > value2) ? value1 : value2);

[AbstractionAnon]

That's a ternary operator.
http://www.cplusplus.com/articles/1AUq5Di1/

[bezerkfury24]

thank you so much for the help.