cpp-lazy-stream/include/stream/view/single.h

//
//  single.h
//  stream
//
//  Created by Sam Jaffe on 3/29/23.
//

#pragma once

#include <stream/forward.h>

namespace stream::ranges {
template <typename T> class single_view {
private:
  T value_;

public:
  single_view(T const & value) : value_(value) {}

  T const * begin() const { return &value_; }
  T const * end() const { return 1 + &value_; }
  static bool empty() { return false; }
  static size_t size() { return 1; }
};
}

namespace stream::ranges::views {
template <typename T> auto single(T const & value) {
  return single_view(value);
}
}