capture_field()

decltype(auto) constexpr capture_field ( T && t )

related

Creates a field from a given value keeping the qualifiers.

Template Parameters

Name	The label to associate to the field.

Parameters

t	A forwarding reference to the input object.

Returns

A field that correctly keeps the qualified input type.

Helper type

namespace kumi::result
{
  template<typename Ts> struct capture_field;
 
  template<typename T> using capture_field_t = typename capture_field<T>::type;
}

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

Example:

#include <kumi/kumi.hpp>
#include <iostream>
 
int main()
{
  using namespace kumi::literals;
 
  int field = { 1 }; 
 
  std::cout << field << "\n";
  std::cout << kumi::capture_field<"x"_id>(field) << "\n";
}