.. _program_listing_file_include_dx2_h5_h5utils.hpp:

Program Listing for File h5utils.hpp
====================================

|exhale_lsh| :ref:`Return to documentation for file <file_include_dx2_h5_h5utils.hpp>` (``include/dx2/h5/h5utils.hpp``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   
   #pragma once
   
   #include <hdf5.h>
   #include <utility>
   
   namespace h5utils {
   
   template <herr_t(D)(hid_t)> struct H5Cleanup {
     H5Cleanup() : id(-1) {}
     explicit H5Cleanup(hid_t id) : id(id) {}
     H5Cleanup(const H5Cleanup &) = delete;
     H5Cleanup(H5Cleanup &&other) noexcept : id(other.id) { other.id = -1; }
     H5Cleanup &operator=(H5Cleanup &&other) noexcept {
       std::swap(id, other.id);
       return *this;
     }
     ~H5Cleanup() {
       if (id >= 0) {
         D(id);
       }
     }
   
     operator hid_t() const { return id; }
     explicit operator bool() const { return id >= 0; }
     hid_t id;
   };
   
   // Common aliases for specific HDF5 object types
   using H5File = H5Cleanup<H5Fclose>;
   using H5Group = H5Cleanup<H5Gclose>;
   using H5Dataset = H5Cleanup<H5Dclose>;
   using H5Attr = H5Cleanup<H5Aclose>;
   using H5Space = H5Cleanup<H5Sclose>;
   using H5Type = H5Cleanup<H5Tclose>;
   using H5Plist = H5Cleanup<H5Pclose>;
   
   inline H5Plist make_v18_file_access_plist() {
     H5Plist fapl(H5Pcreate(H5P_FILE_ACCESS));
     if (fapl &&
         H5Pset_libver_bounds(fapl, H5F_LIBVER_V18, H5F_LIBVER_LATEST) < 0) {
       return H5Plist();
     }
     return fapl;
   }
   
   class H5ErrorSilencer {
   public:
     H5ErrorSilencer() {
       H5Eget_auto2(H5E_DEFAULT, &old_func, &old_client_data);
       H5Eset_auto2(H5E_DEFAULT, nullptr, nullptr);
     }
   
     ~H5ErrorSilencer() { H5Eset_auto2(H5E_DEFAULT, old_func, old_client_data); }
   
   private:
     H5E_auto2_t old_func = nullptr;
     void *old_client_data = nullptr;
   };
   
   } // namespace h5utils