byte sized c++

Array

14.1 - Creating arrays

std::array is a container for fixed size array. Unlike std::vector which can have a variable size, std::array has a fixed size which is determined from the definition. To define std::array, the type and the size needs to be provided:

// Creates an array of int called numbers with the size 5.
std::array<int, 5> numbers{10, 20, 30, 40, 50};

Like std::vector, std::array supports the brace initialization. If it is defined without being initialized, the content value would be unpredictable just like uninitialized int.

Compared to a C-style array, std::array has many benefits such as knowing its size and is safer.

Task

• Create an std::array containing int called days_in_months with the numbers of days in each month for a non-leap year:
  • Start with the type declaration std::array<int, 12>.
  • Use the brace initialization to set the values.