Array size metafunction - is it in boost somewhere?

I eventually found the answer myself - boost::size():

#include <boost/range.hpp>int array[10];boost::size(array); // returns 10

c++ arrays templates boost sizeof

In the new C++ standard, std::array from the header has the method size(), which returns a constexpr and is therefore available at compile time.

You should be able to to something like

std::array< YourType, N > arr;constexpr auto totalSize = arr.size() * sizeof( std::array< YourType, N >::value_type );

Hope this helps...

c++ arrays templates boost sizeof

C++ 17 support std::size() (defined in header <iterator>)

#include <iterator>int my_array[10];std::size(my_array);std::vector<int> my_vector(10);std::size(my_vector);

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