Question
struct Uct
{
std::vector<int> vec{10};
};
The code above creates vector that contains single element with value 10. But I need to initialize the vector with size 10 instead. Just like this:
std::vector<int> vec(10);
How can I do this with in-class initialization?
Answer
I think there are 2 aswers:
std::vector<int> vec = std::vector<int>(10);
as said in the comments and:
std::vector<int> vec{0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
this is less preferable since it's less readable and harder to adjust later on, but I think it's faster (before c++17) because it doesn't invoke a move constructor as said in the comments.
That being said Uct(): vec(10){}; is also a perfectly viable option with the same properties(I think).