Use util::mutexed in audio::channel if atomic_ptr<shared_ptr> is not supported

libs/audio/include/psemek/audio/channel.hpp

@@ -1,8 +1,14 @@
 #pragma once
 
-#include <psemek/audio/stream.hpp>
+#include <version>
+
+#include <psemek/audio/stream.hpp>
+#ifdef __cpp_lib_atomic_shared_ptr
+	#include <atomic>
+#else
+	#include <psemek/util/mutexed.hpp>
+#endif
 
-#include <atomic>
 #include <memory>
 
 namespace psemek::audio
@@ -37,7 +43,11 @@ namespace psemek::audio
 		}
 
 	private:
-		std::atomic<stream_ptr> stream_;
+		#ifdef __cpp_lib_atomic_shared_ptr
+			std::atomic<stream_ptr> stream_;
+		#else
+			util::mutexed<stream_ptr> stream_;
+		#endif
 	};
 
 	using channel_ptr = std::shared_ptr<channel>;

libs/math/include/psemek/math/detail/array.hpp

@@ -3,6 +3,8 @@
 #include <psemek/math/dynamic.hpp>
 #include <psemek/util/exception.hpp>
 
+#include <memory>
+
 namespace psemek::math::detail
 {
 
@@ -43,6 +45,8 @@ namespace psemek::math::detail
 
 			T data[N];
 
+			type() = default;
+
 			type(dynamic_dimensions<N>){}
 
 			dynamic_dimensions<N> dimensions() const { return {}; }
@@ -59,6 +63,8 @@ namespace psemek::math::detail
 		{
 			static constexpr std::size_t size = 0;
 
+			type() = default;
+
 			type(dynamic_dimensions<0>){}
 
 			dynamic_dimensions<0> dimensions() const { return {}; }

libs/math/include/psemek/math/detail/array_2d.hpp

@@ -67,7 +67,7 @@ namespace psemek::math::detail
 				: rows(dimensions.rows.size)
 			{}
 
-			dynamic_dimensions_2d<dynamic, 0> dimensions() const { return {.rows = rows}; }
+			dynamic_dimensions_2d<dynamic, 0> dimensions() const { return {.rows = {rows}}; }
 
 			T const * operator[](std::size_t) const { throw empty_array_exception{}; }
 			T * operator[](std::size_t) { throw empty_array_exception{}; }
@@ -103,7 +103,7 @@ namespace psemek::math::detail
 				: columns(dimensions.columns.size)
 			{}
 
-			dynamic_dimensions_2d<0, dynamic> dimensions() const { return {.columns = columns}; }
+			dynamic_dimensions_2d<0, dynamic> dimensions() const { return {.columns = {columns}}; }
 
 			T const * operator[](std::size_t) const { throw empty_array_exception{}; }
 			T * operator[](std::size_t) { throw empty_array_exception{}; }
@@ -141,7 +141,7 @@ namespace psemek::math::detail
 				, data(std::make_unique_for_overwrite<T[]>(rows * columns))
 			{}
 
-			dynamic_dimensions_2d<R, dynamic> dimensions() const { return {.columns = columns}; }
+			dynamic_dimensions_2d<R, dynamic> dimensions() const { return {.columns = {columns}}; }
 
 			T * operator[] (std::size_t row)
 			{
@@ -178,7 +178,7 @@ namespace psemek::math::detail
 				, data(std::make_unique_for_overwrite<T[]>(rows * columns))
 			{}
 
-			dynamic_dimensions_2d<dynamic, C> dimensions() const { return {.rows = rows}; }
+			dynamic_dimensions_2d<dynamic, C> dimensions() const { return {.rows = {rows}}; }
 
 			T * operator[] (std::size_t row)
 			{
@@ -216,7 +216,7 @@ namespace psemek::math::detail
 				, data(std::make_unique_for_overwrite<T[]>(rows * columns))
 			{}
 
-			dynamic_dimensions_2d<dynamic, dynamic> dimensions() const { return {.rows = rows, .columns = columns}; }
+			dynamic_dimensions_2d<dynamic, dynamic> dimensions() const { return {.rows = {rows}, .columns = {columns}}; }
 
 			T * operator[] (std::size_t row)
 			{

libs/math/include/psemek/math/point.hpp

@@ -26,9 +26,7 @@ namespace psemek::math
 			: coords(dimensions)
 		{}
 
-		point()
+		point() = default;
-			: coords({})
-		{}
 
 		explicit point(std::size_t size) requires (N == dynamic)
 			: coords({.size = size})
@@ -37,7 +35,6 @@ namespace psemek::math
 		template <typename ... Args>
 		requires(N != dynamic && sizeof...(Args) == N && detail::all_convertible_to<T, Args...>::value)
 		point(Args && ... args)
-			: coords({})
 		{
 			auto out = values().begin();
 			((*out++ = args), ...);

libs/math/include/psemek/math/vector.hpp

@@ -29,9 +29,7 @@ namespace psemek::math
 			: coords(dimensions)
 		{}
 
-		vector()
+		vector() = default;
-			: coords({})
-		{}
 
 		explicit vector(std::size_t size) requires (N == dynamic)
 			: coords({.size = size})
@@ -40,7 +38,6 @@ namespace psemek::math
 		template <typename ... Args>
 		requires(N != dynamic && sizeof...(Args) == N && detail::all_convertible_to<T, Args...>::value)
 		vector(Args && ... args)
-			: coords({})
 		{
 			auto out = values().begin();
 			((*out++ = args), ...);

libs/util/CMakeLists.txt

@@ -1,4 +1,6 @@
-find_package(Boost COMPONENTS math REQUIRED CONFIG)
+# Boost.Math is header-only
+# Required for statistics.hpp
+find_package(Boost REQUIRED CONFIG)
 
 file(GLOB_RECURSE PSEMEK_UTIL_HEADERS RELATIVE "${CMAKE_CURRENT_SOURCE_DIR}" "include/*.hpp")
 file(GLOB_RECURSE PSEMEK_UTIL_SOURCES RELATIVE "${CMAKE_CURRENT_SOURCE_DIR}" "source/*.cpp")

libs/util/include/psemek/util/mutexed.hpp

@@ -0,0 +1,53 @@
+#pragma once
+
+#include <mutex>
+#include <utility>
+
+namespace psemek::util
+{
+
+	template <typename T, typename Mutex = std::mutex>
+	struct mutexed
+	{
+		mutexed() = default;
+
+		mutexed(mutexed const &) = delete;
+		mutexed(mutexed &&) = delete;
+
+		mutexed & operator = (mutexed const &) = delete;
+		mutexed & operator = (mutexed &&) = delete;
+
+		mutexed(T && value)
+			: value_(std::move(value))
+		{}
+
+		template <typename ... Args>
+		mutexed(std::in_place_t, Args && ... args)
+			: value_(std::forward<Args>(args)...)
+		{}
+
+		T load() const
+		{
+			std::lock_guard lock{mutex_};
+			return value_;
+		}
+
+		void store(T && new_value)
+		{
+			std::lock_guard lock{mutex_};
+			value_ = std::move(new_value);
+		}
+
+		T exchange(T && new_value) const
+		{
+			std::lock_guard lock{mutex_};
+			std::swap(value_, new_value);
+			return new_value;
+		}
+
+	private:
+		T value_;
+		mutable Mutex mutex_;
+	};
+
+}

libs/util/include/psemek/util/range.hpp

@@ -83,8 +83,8 @@ namespace psemek::util
 	template <typename Range>
 	auto reversed(Range const & r)
 	{
-		auto it1 = begin(r);
+		auto it1 = xbegin(r);
-		auto it2 = end(r);
+		auto it2 = xend(r);
 
 		using ReverseIterator = std::reverse_iterator<decltype(it1)>;
 		return range<ReverseIterator>{std::make_reverse_iterator(it2), std::make_reverse_iterator(it1)};