Matlab and IDL Data Types

Hi guys! So I'm having some problems with the data types in Matlab and IDL.

So, in IDL, it automatically identifies the data type of numbers. Like for example, the number -32768 is considered long but when you type this in Matlab, and you put the command "class" or "whos", it's considered as double.

Is there a way in Matlab to figure out the data type the way in IDL?

Thanks a lot!