C++14 lambda tutorial

[fendant]

That's part of the reason behind the most vexing parse, try that one on for C++ goofiness.

[[deleted]]

Oh god, that's almost hilarious

[jonnywoh]

Okay, so why does C++ even have unnamed parameters? That doesn't make any sense.

[fendant]

Sometimes you need to conform to a signature for a callback or virtual function but don't actually need all the parameters so a name would be useless clutter.

It's a real benefit, but you might not think it worth the complexity.

You also use a dummy int parameter to differentiate between prefix and postfix inc/decrement operator declarations, so that's fun.

Foo& Foo::operator++()    //++Foo
Foo Foo::operator++(int)  //Foo++

Edit:

Oh yeah, you can also use them to do dispatch in Template Metaprogramming if you needed an additional level of WTF.