What does the syntax *this = {}; do in a class function?

[GilbertJobs]

Obviously a newer player to C++ here. I figured out that the 
*this is a self referential class pointer, but I'm not really 
sure what the closed braces means. My understanding was that 
braces are usually used for code blocks, but this syntax almost 
looks more like what I'd see in MATLAB for initializing something 
as empty. Specifically, I saw this in a reset function for a 
class - what exactly does this "reset"?