set.hpp

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#pragma once
 
#include <iterator>
 
#include "datum.hpp"
#include "imports.h"
#include "types.hpp"
 
namespace cppgres {
 
template <typename I>
concept datumable_iterator =
    requires(I i) {
      { std::begin(i) } -> std::forward_iterator;
      { std::end(i) } -> std::sentinel_for<decltype(std::begin(i))>;
    } &&
    all_from_nullable_datum<typename std::iterator_traits<decltype(std::begin(
        std::declval<I &>()))>::value_type>::value;
 
template <datumable_iterator I> struct set_iterator_traits {
  using value_type = std::iterator_traits<decltype(std::begin(std::declval<I &>()))>::value_type;
};
 
template <typename I> requires datumable_iterator<I>
struct type_traits<I> {
  static bool is(type &t) { return t.oid == RECORDOID; }
};
 
} // namespace cppgres