The initializer_list
Template (C++11)
The initializer_list
template is another C++11 addition to the C++ library. You can use the initializer-list syntax to initialize an STL container to a list of values:
std::vector<double> payments {45.99, 39.23, 19.95, 89.01};
This would create a container for four elements and initialize the elements to the four values in the list. What makes this possible is that the container classes now have constructors taking an initializer_list<T>
argument. A vector<double>
object, for example, has a constructor that accepts an initializer_list<double>
argument, and the previous declaration is the same as this:
std::vector<double> payments({45.99, 39.23, 19.95, 89.01});
Here, the list is written explicitly as a constructor ...
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