bit_or() [2/2]

template<concepts::product_type T, typename Value>

auto kumi::bit_or ( T && t, Value init )

inlinenodiscardconstexpr

Computes the bitwise OR of all elements.

On record types, this function operates on the underlying values, not on the fields themselves.

Parameters

t	Product type to operate on
init	Optional initial value of the reduction

Returns

The value of get<0>(t) | ... | get<N-1>(t) | init

Helper type

namespace kumi::result
{
  template<product_type T, typename Value> struct bit_or;
 
  template<product_type T, typename Value>
  using bit_or_t = typename bit_or<T,Value>::type;
}

Computes the return type of a call to kumi::bit_or

Examples:

Tuple:

#include <kumi/kumi.hpp>
#include <iostream>
 
int main()
{
  auto t = kumi::tuple{1,short{8},' ', 4ULL};
 
  std::cout << kumi::bit_or(t, 0) << "\n";
  std::cout << kumi::bit_or(t) << "\n";
}

Record:

#include <kumi/kumi.hpp>
#include <iostream>
 
int main()
{
  using namespace kumi::literals;
  auto t = kumi::record{"a"_id = 1,"b"_id = short{8},"c"_id = ' ', "d"_id = 4ULL};
 
  std::cout << kumi::bit_or(t, 0) << "\n";
  std::cout << kumi::bit_or(t) << "\n";
}