transforms.h

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#ifndef FCPP_TRANSFORMS_H
#define FCPP_TRANSFORMS_H
 
#include <set>
#include <utility>
#include <vector>
 
namespace fcpp::transforms {

template <typename T>
std::vector<T> to_vector(const std::set<T> &items) {
  std::vector<T> result;
  result.reserve(items.size());
  for (const auto &v : items) {
    result.emplace_back(v);
  }
  return result;
}

template <typename T>
std::vector<T> to_vector(std::set<T> &&items) {
  std::vector<T> result;
  result.reserve(items.size());
  while (!items.empty()) {
    auto nh = items.extract(items.begin());
    result.emplace_back(std::move(nh.value()));
  }
  return result;
}
 
} // namespace fcpp::transforms
 
#endif // FCPP_TRANSFORMS_H