Add include checks with IWYU

CMakeLists.txt

@@ -5,6 +5,13 @@ project(
   LANGUAGES CXX
   VERSION 2.11.0)
 
+find_program(IWYU_PATH NAMES include-what-you-use iwyu)
+if(IWYU_PATH)
+  set(CMAKE_CXX_INCLUDE_WHAT_YOU_USE
+      ${IWYU_PATH} -Xiwyu
+      --mapping_file=${CMAKE_CURRENT_SOURCE_DIR}/cmake/iwyu.imp)
+endif()
+
 option(BUILD_PYTHON "Build the Python bindings" OFF)
 
 if(BUILD_PYTHON)

cmake/iwyu.imp

@@ -0,0 +1,17 @@
+[
+  { "include": ["@\"CLUEstering/.*/detail/.*\\.hpp\"", "private", "\"CLUEstering/CLUEstering.hpp\"", "public"] },
+  { "include": ["\"CLUEstering/core/Clusterer.hpp\"", "private", "\"CLUEstering/CLUEstering.hpp\"", "public"] },
+  { "include": ["\"CLUEstering/core/ConvolutionalKernel.hpp\"", "private", "\"CLUEstering/CLUEstering.hpp\"", "public"] },
+  { "include": ["\"CLUEstering/data_structures/PointsHost.hpp\"", "private", "\"CLUEstering/CLUEstering.hpp\"", "public"] },
+  { "include": ["\"CLUEstering/data_structures/PointsDevice.hpp\"", "private", "\"CLUEstering/CLUEstering.hpp\"", "public"] },
+  { "include": ["\"CLUEstering/data_structures/PointsConversion.hpp\"", "private", "\"CLUEstering/CLUEstering.hpp\"", "public"] },
+  { "include": ["\"CLUEstering/data_structures/PointsFactory.hpp\"", "private", "\"CLUEstering/CLUEstering.hpp\"", "public"] },
+  { "include": ["\"CLUEstering/utils/read_csv.hpp\"", "private", "\"CLUEstering/CLUEstering.hpp\"", "public"] },
+  { "include": ["\"CLUEstering/utils/cluster_centroid.hpp\"", "private", "\"CLUEstering/CLUEstering.hpp\"", "public"] },
+  { "include": ["\"CLUEstering/utils/get_clusters.hpp\"", "private", "\"CLUEstering/CLUEstering.hpp\"", "public"] },
+  { "include": ["\"CLUEstering/utils/get_device.hpp\"", "private", "\"CLUEstering/CLUEstering.hpp\"", "public"] },
+  { "include": ["\"CLUEstering/utils/get_queue.hpp\"", "private", "\"CLUEstering/CLUEstering.hpp\"", "public"] },
+  { "include": ["\"CLUEstering/utils/scores.hpp\"", "private", "\"CLUEstering/CLUEstering.hpp\"", "public"] },
+  { "include": ["\"CLUEstering/utils/to_dot.hpp\"", "private", "\"CLUEstering/CLUEstering.hpp\"", "public"] },
+  { "include": ["@<alpaka/.*>", "private", "<alpaka/alpaka.hpp>", "public"] }
+]

tests/test_association_map.cpp

@@ -1,14 +1,16 @@
 
 #if !defined(ALPAKA_ACC_GPU_CUDA_ENABLED) && !defined(ALPAKA_ACC_GPU_HIP_ENABLED)
 
-#include "CLUEstering/core/detail/defines.hpp"
-#include "CLUEstering/data_structures/PointsHost.hpp"
+#include "CLUEstering/CLUEstering.hpp"
 #include "CLUEstering/data_structures/internal/MakeAssociator.hpp"
 
-#include <numeric>
+#include <algorithm>
+#include <alpaka/alpaka.hpp>
+#include <cstdint>
+#include <iterator>
 #include <ranges>
 #include <span>
-#include <vector>
+#include <utility>
 
 #define DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN
 #include <doctest/doctest.h>

tests/test_batched_clustering.cpp

@@ -1,6 +1,13 @@
 
 #include "CLUEstering/CLUEstering.hpp"
-#include "CLUEstering/utils/detail/get_cluster_properties.hpp"
+
+#include <alpaka/alpaka.hpp>
+#include <cstddef>
+#include <cstdint>
+#include <optional>
+#include <span>
+#include <string>
+#include <vector>
 
 #define DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN
 #include <doctest/doctest.h>

tests/test_cluster_centroid.cpp

@@ -1,13 +1,11 @@
 
 #include "CLUEstering/CLUEstering.hpp"
 
+#include <algorithm>
+#include <alpaka/alpaka.hpp>
 #include <cmath>
-#include <ranges>
-#include <span>
-#include <vector>
-
-#include <fmt/core.h>
-#include <fmt/format.h>
+#include <optional>
+#include <string>
 
 #define DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN
 #include <doctest/doctest.h>

tests/test_clusterer.cpp

@@ -1,11 +1,9 @@
 
 #include "CLUEstering/CLUEstering.hpp"
-#include "CLUEstering/utils/validation.hpp"
 
-#include <cmath>
-#include <ranges>
-#include <span>
-#include <vector>
+#include <alpaka/alpaka.hpp>
+#include <optional>
+#include <string>
 
 #define DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN
 #include <doctest/doctest.h>

tests/test_clustering.cpp

@@ -1,10 +1,19 @@
 
 #include "CLUEstering/CLUEstering.hpp"
-#include "CLUEstering/utils/validation.hpp"
 
+#include <algorithm>
+#include <alpaka/alpaka.hpp>
+#include <array>
+#include <cmath>
+#include <cstdint>
 #include <numbers>
+#include <numeric>
+#include <optional>
 #include <random>
-#include <ranges>
+#include <span>
+#include <string>
+#include <utility>
+#include <vector>
 
 #include <fmt/format.h>
 

tests/test_convolutional_kernels.cpp

@@ -1,5 +1,5 @@
 
-#include "CLUEstering/core/ConvolutionalKernel.hpp"
+#include "CLUEstering/CLUEstering.hpp"
 
 #define DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN
 #include <doctest/doctest.h>

tests/test_device_points.cpp

@@ -1,9 +1,17 @@
 
 #include "CLUEstering/CLUEstering.hpp"
 
+#include <algorithm>
+#include <alpaka/alpaka.hpp>
+#include <concepts>
+#include <cstddef>
+#include <cstdint>
 #include <numeric>
+#include <optional>
 #include <ranges>
 #include <span>
+#include <string>
+#include <type_traits>
 #include <vector>
 
 #define DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN

tests/test_distance_metrics.cpp

@@ -1,5 +1,7 @@
 
 #include "CLUEstering/CLUEstering.hpp"
+
+#include <array>
 #include <cmath>
 
 #define DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN

tests/test_host_points.cpp

@@ -2,9 +2,14 @@
 #include "CLUEstering/CLUEstering.hpp"
 
 #include <algorithm>
+#include <array>
+#include <cstddef>
+#include <cstdint>
 #include <numeric>
+#include <optional>
 #include <ranges>
 #include <span>
+#include <string>
 #include <vector>
 
 #define DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN

tests/test_to_dot.cpp

@@ -1,9 +1,12 @@
 
 #include "CLUEstering/CLUEstering.hpp"
 
+#include <cctype>
 #include <filesystem>
 #include <fstream>
+#include <optional>
 #include <sstream>
+#include <stdexcept>
 #include <string>
 
 #define DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN

tests/test_utilities.cpp

@@ -1,9 +1,11 @@
 
 #include "CLUEstering/CLUEstering.hpp"
 
-#include <cmath>
-#include <ranges>
-#include <span>
+#include <alpaka/alpaka.hpp>
+#include <optional>
+#include <stdexcept>
+#include <string>
+#include <type_traits>
 #include <vector>
 
 #define DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN

tests/test_validation_scores.cpp

@@ -1,6 +1,9 @@
 
 #include "CLUEstering/CLUEstering.hpp"
 
+#include <optional>
+#include <string>
+
 #define DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN
 #include <doctest/doctest.h>
 

tests/test_zip_iterator.cpp

@@ -2,7 +2,10 @@
 #include "CLUEstering/internal/nostd/zip_iterator.hpp"
 
 #include <algorithm>
+#include <cstddef>
 #include <numeric>
+#include <tuple>
+#include <type_traits>
 #include <vector>
 
 #define DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN