count()

template<typename T >

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

constexprnoexcept

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/tuple.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";
  std::cout << std::boolalpha << kumi::count(7.89) << "\n";
}