Merge branch 'fix-constness-arrow-it' into 'master'

Fix constness arrow it See merge request correaa/boost-multi!1362
correaa · Mar 1, 2025 · 5b7da7b · 5b7da7b
2 parents 79b47c7 + ceb2bc7
commit 5b7da7b
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Showing 7 changed files with 163 additions and 103 deletions.
diff --git a/include/boost/multi/adaptors/fftw/test/core.cpp b/include/boost/multi/adaptors/fftw/test/core.cpp
@@ -21,8 +21,7 @@ namespace fftw  = multi::fftw;
 
 template<class M> auto power(M const& elem) -> decltype(std::norm(elem)) { return std::norm(elem); }
 
-template<class M,
-	std::enable_if_t<(M::rank::value >= 1), int> =0>  // NOLINT(modernize-use-constraints) for C++20
+template<class M, std::enable_if_t<(M::rank::value >= 1), int> =0>  // NOLINT(modernize-use-constraints) for C++20
 auto power(M const& array) {
 	return accumulate(begin(array), end(array), 0.0, [](auto const& alpha, auto const& omega) { return alpha + power(omega); });
 }

diff --git a/include/boost/multi/adaptors/fftw/test/moved.cpp b/include/boost/multi/adaptors/fftw/test/moved.cpp
@@ -7,7 +7,7 @@
 #include <boost/multi/adaptors/fftw.hpp>
 #include <boost/multi/array.hpp>
 
-// IWYU pragma: no_include <algorithm>                        // for fill_n, equal  
+// IWYU pragma: no_include <algorithm>                        // for fill_n, equal
 #include <complex>
 #include <numeric>  // for std::transform_reduce
 #include <utility>  // for move  // IWYU pragma: keep

diff --git a/include/boost/multi/array_ref.hpp b/include/boost/multi/array_ref.hpp
diff --git a/test/array_ptr.cpp b/test/array_ptr.cpp
@@ -101,15 +101,15 @@ auto main() -> int {  // NOLINT(readability-function-cognitive-complexity,bugpro
 		BOOST_TEST( pac2 == parr2 );
 	}
 
-	BOOST_AUTO_TEST_CASE(subarray_ptr_1D) {
-		multi::subarray_ptr<double, 1> const ptr = nullptr;
-		BOOST_TEST(( ptr == multi::subarray_ptr<double, 1>{nullptr} ));
-	}
+	// BOOST_AUTO_TEST_CASE(subarray_ptr_1D) {
+	// 	multi::subarray_ptr<double, 1> const ptr = nullptr;
+	// 	BOOST_TEST(( ptr == multi::subarray_ptr<double, 1>{nullptr} ));
+	// }
 
-	BOOST_AUTO_TEST_CASE(subarray_ptr_2D) {
-		multi::subarray_ptr<double, 2> const ptr = nullptr;
-		BOOST_TEST(( ptr == multi::subarray_ptr<double, 2>{nullptr} ));
-	}
+	// BOOST_AUTO_TEST_CASE(subarray_ptr_2D) {
+	// 	multi::subarray_ptr<double, 2> const ptr = nullptr;
+	// 	BOOST_TEST(( ptr == multi::subarray_ptr<double, 2>{nullptr} ));
+	// }
 
 	BOOST_AUTO_TEST_CASE(multi_array_ptr) {
 		{
@@ -138,10 +138,10 @@ auto main() -> int {  // NOLINT(readability-function-cognitive-complexity,bugpro
 			static_assert(std::is_trivially_copyable_v<multi::layout_t<2>>);
 
 #ifndef _MSC_VER
-			static_assert(std::is_trivially_default_constructible_v<multi::subarray_ptr<double, 2>>);
+//			static_assert(std::is_trivially_default_constructible_v<multi::subarray_ptr<double, 2>>);
 #endif
-			static_assert(std::is_trivially_copy_assignable_v<multi::subarray_ptr<double, 2>>);
-			static_assert(std::is_trivially_copyable_v<multi::subarray_ptr<double, 2>>);
+			// static_assert(std::is_trivially_copy_assignable_v<multi::subarray_ptr<double, 2>>);
+			// static_assert(std::is_trivially_copyable_v<multi::subarray_ptr<double, 2>>);
 
 			BOOST_TEST( (*arrP).extensions() == multi::extensions(arr) );
 			BOOST_TEST( arrP->extensions() == multi::extensions(arr) );

diff --git a/test/index_range.cpp b/test/index_range.cpp
@@ -121,7 +121,7 @@ auto main() -> int {  // NOLINT(readability-function-cognitive-complexity,bugpro
 
 		ies.prev_canonical(i, j);
 		BOOST_TEST( i == 0 );
-		BOOST_TEST( j == 0);        
+		BOOST_TEST( j == 0);
 	}
 
 	// test prev canonical 2D

diff --git a/test/iterator.cpp b/test/iterator.cpp
@@ -34,9 +34,9 @@ auto main() -> int {  // NOLINT(readability-function-cognitive-complexity,bugpro
 		BOOST_TEST((std::is_trivially_copy_assignable_v      <multi::layout_t<1>>));
 		BOOST_TEST((std::is_trivially_default_constructible_v<multi::layout_t<1>>));
 
-		BOOST_TEST((std::is_trivially_copy_constructible_v   <multi::subarray_ptr<double, 1>>));
-		BOOST_TEST((std::is_trivially_copy_assignable_v      <multi::subarray_ptr<double, 1>>));
-		BOOST_TEST((std::is_trivially_default_constructible_v<multi::subarray_ptr<double, 1>>));
+		// BOOST_TEST((std::is_trivially_copy_constructible_v   <multi::subarray_ptr<double, 1>>));
+		// BOOST_TEST((std::is_trivially_copy_assignable_v      <multi::subarray_ptr<double, 1>>));
+		// BOOST_TEST((std::is_trivially_default_constructible_v<multi::subarray_ptr<double, 1>>));
 
 		BOOST_TEST((std::is_trivially_default_constructible_v<multi::array<double, 1>::iterator>));
 		BOOST_TEST((std::is_trivially_copy_constructible_v   <multi::array<double, 1>::iterator>));
@@ -90,9 +90,9 @@ auto main() -> int {  // NOLINT(readability-function-cognitive-complexity,bugpro
 		BOOST_TEST((std::is_trivially_copy_assignable_v      <multi::layout_t<2>>));
 		BOOST_TEST((std::is_trivially_default_constructible_v<multi::layout_t<2>>));
 
-		BOOST_TEST((std::is_trivially_copy_constructible_v   <multi::subarray_ptr<double, 2>>));
-		BOOST_TEST((std::is_trivially_copy_assignable_v      <multi::subarray_ptr<double, 2>>));
-		BOOST_TEST((std::is_trivially_default_constructible_v<multi::subarray_ptr<double, 2>>));
+		// BOOST_TEST((std::is_trivially_copy_constructible_v   <multi::subarray_ptr<double, 2>>));
+		// BOOST_TEST((std::is_trivially_copy_assignable_v      <multi::subarray_ptr<double, 2>>));
+		// BOOST_TEST((std::is_trivially_default_constructible_v<multi::subarray_ptr<double, 2>>));
 
 		// BOOST_TEST((std::is_trivially_default_constructible_v<multi::array<double, 2>::iterator>));  // TODO(correaa)
 		BOOST_TEST((std::is_trivially_copy_constructible_v   <multi::array<double, 2>::iterator>));
@@ -316,5 +316,33 @@ auto main() -> int {  // NOLINT(readability-function-cognitive-complexity,bugpro
 		BOOST_TEST( arr.end() - 1 < arr.end()       );
 	}
 
+	// simple example arrow iterator 1D
+	{
+		multi::array<std::string, 1> const arr({4}, std::string{"hello"});  // NOLINT(fuchsia-default-arguments-calls)
+		BOOST_TEST( arr.size() == 4 );
+		BOOST_TEST( arr.begin()->size() == 5 );
+
+		BOOST_TEST( arr[0] == "hello" );
+		BOOST_TEST( *(arr.begin()->begin()) == 'h' );
+
+		// arr[0][0] = 'H';
+		// *(arr.begin()->begin()) = "H";  // can't assign to const value
+		// BOOST_TEST( arr[0] == "Hello" );
+	}
+
+	// simple example arrow operator 2D
+	{
+		multi::array<int, 2> const arr({2, 3}, 5);
+		BOOST_TEST( arr[0].size() == 3 );
+		BOOST_TEST( arr.begin()->size() == 3 );
+
+		BOOST_TEST( arr[0][0] == 5 );
+		BOOST_TEST( *(arr.begin()->begin()) == 5 );
+
+		// arr[0][0] = 6;  // ok, doesn't compile, it is read-only
+		// *(arr.begin()->begin()) = 6;  // ok, doesn't work, it is read-only
+		// BOOST_TEST( arr[0][0] == 6 );
+	}
+
 	return boost::report_errors();
 }
diff --git a/test/subarray.cpp b/test/subarray.cpp
@@ -13,13 +13,13 @@
 namespace multi = boost::multi;
 
 namespace {
-	auto f_arr(multi::array<int, 1> arr) {
-		return arr[2];
-	}
+auto f_arr(multi::array<int, 1> arr) {
+	return arr[2];
+}
 
-	auto f_sub(multi::const_subarray<int, 1> const& arr) {
-		return arr[2];
-	}
+auto f_sub(multi::const_subarray<int, 1> const& arr) {
+	return arr[2];
+}
 }  // namespace
 
 auto main() -> int {  // NOLINT(readability-function-cognitive-complexity,bugprone-exception-escape)