Create a view for std_vector input

.vscode/settings.json

@@ -0,0 +1,56 @@
+{
+    "files.associations": {
+        "array": "cpp",
+        "bitset": "cpp",
+        "string_view": "cpp",
+        "initializer_list": "cpp",
+        "utility": "cpp",
+        "vector": "cpp",
+        "atomic": "cpp",
+        "bit": "cpp",
+        "*.tcc": "cpp",
+        "cctype": "cpp",
+        "clocale": "cpp",
+        "cmath": "cpp",
+        "cstdarg": "cpp",
+        "cstddef": "cpp",
+        "cstdint": "cpp",
+        "cstdio": "cpp",
+        "cstdlib": "cpp",
+        "cstring": "cpp",
+        "ctime": "cpp",
+        "cwchar": "cpp",
+        "cwctype": "cpp",
+        "deque": "cpp",
+        "list": "cpp",
+        "map": "cpp",
+        "set": "cpp",
+        "unordered_map": "cpp",
+        "exception": "cpp",
+        "algorithm": "cpp",
+        "functional": "cpp",
+        "iterator": "cpp",
+        "memory": "cpp",
+        "memory_resource": "cpp",
+        "numeric": "cpp",
+        "optional": "cpp",
+        "random": "cpp",
+        "string": "cpp",
+        "system_error": "cpp",
+        "tuple": "cpp",
+        "type_traits": "cpp",
+        "fstream": "cpp",
+        "iomanip": "cpp",
+        "iosfwd": "cpp",
+        "iostream": "cpp",
+        "istream": "cpp",
+        "limits": "cpp",
+        "new": "cpp",
+        "ostream": "cpp",
+        "sstream": "cpp",
+        "stdexcept": "cpp",
+        "streambuf": "cpp",
+        "cinttypes": "cpp",
+        "typeinfo": "cpp"
+    }
+}

src/Makefile.am

@@ -43,7 +43,8 @@ libt8_installed_headers_cmesh = \
   src/t8_cmesh/t8_cmesh_helpers.h \
   src/t8_cmesh/t8_cmesh_occ.hxx
 libt8_installed_headers_data = \
-  src/t8_data/t8_shmem.h src/t8_data/t8_containers.h
+  src/t8_data/t8_shmem.h src/t8_data/t8_containers.h \
+  src/t8_data/t8_stdvector_conversion.hxx
 libt8_installed_headers_forest = \
   src/t8_forest/t8_forest.h \
   src/t8_forest/t8_forest_general.h \

src/t8_data/t8_stdvector_conversion.hxx

@@ -0,0 +1,94 @@
+/*
+  This file is part of t8code.
+  t8code is a C library to manage a collection (a forest) of multiple
+  connected adaptive space-trees of general element classes in parallel.
+
+  Copyright (C) 2024 the developers
+
+  t8code is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 of the License, or
+  (at your option) any later version.
+
+  t8code is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with t8code; if not, write to the Free Software Foundation, Inc.,
+  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*/
+
+/** \file t8_stdvector_conversion.hxx
+ * Basic conversion routines for std::vector to t8code data types.
+ */
+
+
+#ifndef T8_STDVECTOR_CONVERSION_H
+#define T8_STDVECTOR_CONVERSION_H
+#include<t8_forest/t8_forest_partition.h>
+#include<t8_forest/t8_forest_iterate.h>
+#include <vector>
+
+/* Template to create sc_array view from vector*/
+template <typename T>
+sc_array_t*
+t8_create_sc_array_view_from_vector (const std::vector<T> &vector)
+{
+  void *vector_data = (void *) vector.data ();
+  sc_array_t *new_view = sc_array_new_data (vector_data, sizeof (T), vector.size ());
+  return new_view;
+}
+/* Wrapper function for partition data */
+template <typename T>
+void t8_forest_partition_data_stdvector (t8_forest_t forest_from, t8_forest_t forest_to, 
+                                         const std::vector<T>& data_in_vec, std::vector<T>& data_out_vec)
+{
+  /* Create temporary sc array. */
+  sc_array_t *data_in_view, *data_out_view;
+
+  T8_ASSERT (data_in_vec.size () == forest_from->local_num_elements);
+  T8_ASSERT (data_out_vec.size () == forest_to->local_num_elements);
+
+  data_in_view = t8_create_sc_array_view_from_vector(data_in_vec);
+  data_out_view = t8_create_sc_array_view_from_vector(data_out_vec);
+ /* calling the original function with the sc_array_t view */
+  t8_forest_partition_data(forest_from, forest_to, data_in_view, data_out_view);
+
+  /* Clean-up memory */
+  sc_array_destroy (data_in_view);
+  sc_array_destroy (data_out_view);
+}
+/* Wrapper function for ghost exchange function */
+template <typename T>
+void t8_forest_ghost_exchange_data_with_vector(t8_forest_t forest, const std::vector<T>& element_vector) {
+    t8_debugf("Entering ghost_exchange_data_with_vector\n");
+    T8_ASSERT(t8_forest_is_committed(forest));
+
+     /*Create sc_array_t view from the vector*/ 
+    sc_array_t *element_data = t8_create_sc_array_view_from_vector(element_vector);
+
+    /* calling the original function with the sc_array_t view */
+    t8_forest_ghost_exchange_data(forest, element_data);
+
+    /*Clean up the sc_array_t view*/ 
+    sc_array_destroy(element_data);
+}
+/*Wrapper function to handle std::vector directly for t8_forest_search*/ 
+template <typename T>
+void t8_forest_search_with_vector(t8_forest_t forest, t8_forest_search_query_fn search_fn, 
+                                  t8_forest_search_query_fn query_fn, const std::vector<T>& query_vector) {
+    t8_debugf("Entering t8_forest_search_with_vector\n");
+    T8_ASSERT(t8_forest_is_committed(forest));
+
+    /*Create sc_array_t view from the vector*/
+    sc_array_t *queries = t8_create_sc_array_view_from_vector(query_vector);
+
+    /*calling the original t8_forest_search function with the sc_array_t view */
+    t8_forest_search(forest, search_fn, query_fn, queries);
+
+    /* Clean up the sc_array_t view */
+    sc_array_destroy(queries);
+}
+#endif // T8_STDVECTOR_CONVERSION_H

src/t8_forest/t8_forest_partition.cxx

@@ -26,7 +26,6 @@
 #include <t8_forest/t8_forest_general.h>
 #include <t8_cmesh/t8_cmesh_offset.h>
 #include <t8_element_cxx.hxx>
-
 /* We want to export the whole implementation to be callable from "C" */
 T8_EXTERN_C_BEGIN ();
 
@@ -1208,7 +1207,7 @@ t8_forest_partition (t8_forest_t forest)
 }
 
 void
-t8_forest_partition_data (t8_forest_t forest_from, t8_forest_t forest_to, const sc_array_t *data_in,
+t8_forest_partition_data(t8_forest_t forest_from, t8_forest_t forest_to, const sc_array_t *data_in,
                           sc_array_t *data_out)
 {
   t8_forest_t save_set_from;

tutorials/Makefile.am

@@ -10,6 +10,7 @@ bin_PROGRAMS += \
 	tutorials/general/t8_step4_partition_balance_ghost \
 	tutorials/general/t8_step5_element_data \
 	tutorials/general/t8_step5_element_data_c_interface \
+	tutorials/general/t8_step5_element_data_vector_input \
 	tutorials/general/t8_step6_stencil \
 	tutorials/general/t8_step7_interpolation \
 	tutorials/general/t8_tutorial_build_cmesh \
@@ -37,6 +38,10 @@ tutorials_general_t8_step5_element_data_SOURCES = \
 	tutorials/general/t8_step3_adapt_forest.cxx \
 	tutorials/general/t8_step5_element_data.cxx \
 	tutorials/general/t8_step5_main.cxx
+tutorials_general_t8_step5_element_data_vector_input_SOURCES = \
+	tutorials/general/t8_step3_adapt_forest.cxx \
+	tutorials/general/t8_step5_element_data_vector_input.cxx \
+	tutorials/general/t8_step5_main.cxx
 tutorials_general_t8_step5_element_data_c_interface_SOURCES = \
 	tutorials/general/t8_step3_adapt_forest.cxx \
 	tutorials/general/t8_step5_element_data_c_interface.c \