What is the difference between initializing variables with {} instead of ()

Asked May 14 '16 at 07:20

Active May 14 '16 at 13:44

Viewed 390 times

I've been watching lots of CppCon lectures and I've noticed that Bjarne and Herb both initialize things like this std::unique_ptr<foo>{bar} instead of std::unique_ptr<foo>(bar).

Is there a difference between them that could make them prefer the former?

edited May 14 '16 at 13:44

Johannes Schaub - litb

496,577
130
894
1,212

asked May 14 '16 at 07:20

ar1a

4

List initialization does not allow narrowing (§iso.8.5.4). More explanations here: http://stackoverflow.com/questions/18222926/why-is-list-initialization-using-curly-braces-better-than-the-alternatives – LookAheadAtYourTypes May 14 '16 at 07:23

What is the difference between initializing variables with {} instead of ()

0 Answers0