count()

template<product_type T>

constexpr std::size_t kumi::count ( T &&  ts )

inlineconstexprnoexcept

Counts the number of elements of t not equivalent to false.

Parameters

ts	Value to process

Returns

Number of elements not equivalent to false.

Example:

 
#include <kumi/kumi.hpp>
#include <iostream>
#include <type_traits>
 
int main()
{
  auto t = kumi::tuple{1, 0, 2., nullptr, 3.f, false, 'z'};
  std::cout << std::boolalpha << kumi::count(t ) << "\n";
}