Apply_move.hpp

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/*******************************************************************************
 Causal Dynamical Triangulations in C++ using CGAL
 
 Copyright © 2019 Adam Getchell
 ******************************************************************************/
 
 
#ifndef CDT_PLUSPLUS_APPLY_MOVE_HPP
#define CDT_PLUSPLUS_APPLY_MOVE_HPP
 
#include <spdlog/spdlog.h>
 
#include <expected>
#include <string>
#include <tl/function_ref.hpp>
 
template <typename ManifoldType,
          typename ExpectedType = std::expected<ManifoldType, std::string>,
          typename FunctionType = tl::function_ref<ExpectedType(ManifoldType&)>>
auto constexpr apply_move(ManifoldType&& t_manifold,
                          FunctionType   t_move) noexcept -> decltype(auto)
{
  if (auto result = std::invoke(t_move, std::forward<ManifoldType>(t_manifold));
      result.has_value())
  {
    return result;
  }
  else  // NOLINT
  {
    // Log errors
    spdlog::debug("apply_move called.\n");
    spdlog::debug("{}", result.error());
    return result;
  }
}
 
#endif  // CDT_PLUSPLUS_APPLY_MOVE_HPP