Is there any difference? If not, then why is this syntax needed: int y {2} ?

Question

https://code.sololearn.com/cpmfwpZ8TZmN/?ref=app

Answer 1

With C++11, the so-called feature "uniform initialization" was introduced. It's meant as a consistant syntax for initializing objects, be it in-built types like int, aggregates, or containers. The only real difference is that if the type of the variable to be initialized and the type of the value don't align, the compiler won't attempt an implicit conversion first, but will throw an error instead immediately.
For example:
int a = 9.42; // okay, a = 9
int b { 9.42 }; // error

Here are some reference articles you should see for yourself:

https://mbevin.wordpress.com/2012/11/16/uniform-initialization/

https://en.cppreference.com/w/cpp/language/aggregate_initialization

https://softwareengineering.stackexchange.com/questions/133688/is-c11-uniform-initialization-a-replacement-for-the-old-style-syntax

Answer 2

Shadow very big and bold thanx

Answer 3

~ swim ~ Why were such difficulties introduced in C ++? He's getting too complicated