Move remaining writing of summary file to C++

include/openmc/hdf5_interface.h

@@ -358,6 +358,12 @@ write_attribute(hid_t obj_id, const char* name, const char* buffer)
   write_attr_string(obj_id, name, buffer);
 }
 
+inline void
+write_attribute(hid_t obj_id, const char* name, const std::string& buffer)
+{
+  write_attr_string(obj_id, name, buffer.c_str());
+}
+
 template<typename T, std::size_t N> inline void
 write_attribute(hid_t obj_id, const char* name, const std::array<T, N>& buffer)
 {
@@ -398,6 +404,29 @@ write_dataset(hid_t obj_id, const char* name, const std::array<T, N>& buffer)
   write_dataset(obj_id, 1, dims, name, H5TypeMap<T>::type_id, buffer.data(), false);
 }
 
+inline void
+write_dataset(hid_t obj_id, const char* name, const std::vector<std::string>& buffer)
+{
+  auto n {buffer.size()};
+  hsize_t dims[] {n};
+
+  // Determine length of longest string, including \0
+  size_t m = 1;
+  for (const auto& s : buffer) {
+    m = std::max(m, s.size() + 1);
+  }
+
+  // Copy data into contiguous buffer
+  char temp[n][m];
+  std::fill(temp[0], temp[0] + n*m, '\0');
+  for (int i = 0; i < n; ++i) {
+    std::copy(buffer[i].begin(), buffer[i].end(), temp[i]);
+  }
+
+  // Write 2D data
+  write_string(obj_id, 1, dims, m, name, temp[0], false);
+}
+
 template<typename T> inline void
 write_dataset(hid_t obj_id, const char* name, const std::vector<T>& buffer)
 {

include/openmc/material.h

@@ -6,6 +6,7 @@
 #include <unordered_map>
 #include <vector>
 
+#include <hdf5.h>
 #include "pugixml.hpp"
 #include "xtensor/xtensor.hpp"
 
@@ -58,6 +59,9 @@ public:
   //! Set total density of the material
   int set_density(double density, std::string units);
 
+  //! Write material data to HDF5
+  void to_hdf5(hid_t group) const;
+
   // Data
   int32_t id_; //!< Unique ID
   std::string name_; //!< Name of material

include/openmc/summary.h

@@ -0,0 +1,17 @@
+#ifndef OPENMC_SUMMARY_H
+#define OPENMC_SUMMARY_H
+
+#include <hdf5.h>
+
+namespace openmc {
+
+void write_summary();
+void write_header(hid_t file);
+void write_nuclides(hid_t file);
+void write_geometry(hid_t file);
+void write_materials(hid_t file);
+
+
+}
+
+#endif // OPENMC_SUMMARY_H