refactored

delay/tests/test_buffer.cpp

@@ -0,0 +1,37 @@
+#include <algorithm>
+#include <delay/buffer.hpp>
+#include <cstdio>
+
+#include <ranges>
+#include <iostream>
+
+void print(std::ranges::input_range auto&& range)
+{
+	for(const auto&i : range)
+	{
+		std::cout << i << std::endl;
+	}
+}
+
+int main()
+{
+	dsp::Buffer<int> buffer(10);
+	printf("Buffer capacity = %zu\n", buffer.capacity());
+	for (int i=0; i < 10; i++)
+	{
+		buffer[i] = i+1;
+	}
+	buffer += 5;
+
+	for (int i=-5; i < 5; i++)
+	{
+		int v = buffer[i];
+		printf("i=%d: v=%d\n", i, v);
+	}
+
+ 	std::vector<int> numbers{1, 2, 3, 4, 5};
+  	auto v{std::views::take(numbers, 3)};  
+	print<>(v);
+
+	return 0;
+}