From c6e0940d96d667f0a58c0c8ee692008840840067 Mon Sep 17 00:00:00 2001
From: Jankatay <162386918+Jankatay@users.noreply.github.com>
Date: Sat, 6 Jul 2024 22:05:07 -0700
Subject: [PATCH] Create arrayDimensional.h

A really cool header file to help with 2d and 3d standard arrays.
---
 Cpp/arrayDimensional.h | 86 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 86 insertions(+)
 create mode 100644 Cpp/arrayDimensional.h

diff --git a/Cpp/arrayDimensional.h b/Cpp/arrayDimensional.h
new file mode 100644
index 0000000..65fc05e
--- /dev/null
+++ b/Cpp/arrayDimensional.h
@@ -0,0 +1,86 @@
+// Simple implementation of 2d and 3d arrays 
+// Using standard array for 3d is unreadable and c-like arrays don't let you use algorithms libraries. This is here to fix that problem 
+// See below for example usage
+// Mostly experimental. I will update this over time.
+// While std::sort should be able to work it would have to be inside a loop for example. We can make our own std::sort for 2d and 3d arrays.
+// I highly encourage you to add stuff too.
+//
+// TODO:
+//    Remove the annoying requirement for having to specify std::array etc when initializing. Maybe a make_array2d and a make_array3d function etc people can use?
+//    Add some sorting function.
+//    Operator<< overload is for visibility only for now. Make an alternative function that returns std::ostream& instead so people can choose their own implementation of <<.
+//    Add 4d arrays.
+//    Whatever you find cool and relevant. Vectors, maps, algorithms, operators etc.
+//    
+
+// EXAMPLE USAGE.
+/*
+int main() {
+	ARRD::array2d<int, 3, 4> foo{
+		std::array<int, 4> //Don't put ','
+		{1, 2, 3, 4},
+		{2, 4, 6, 8},
+		{3, 1, 4, 1}
+	};
+
+	ARRD::array3d<int, 2, 3, 4> goo{
+		ARRD::array2d<int, 3, 4>
+		{},
+		{}
+	};
+
+	ARRD::array3d<int, 3, 3, 4> hoo{
+		foo,
+		goo[0],
+		{}
+	};
+
+	std::cout << "Equivelent:\tint foo [3][4]:\n" << foo << '\n';
+	std::cout << "Equivelent:\tint goo [2][3][4]:\n" << goo << '\n';
+	std::cout << "Equivelent:\tint hoo [3][3][4]:\n" << hoo << '\n';
+
+	return 0;
+}  
+*/
+  
+#ifndef ARRAY_D
+#define ARRAY_D
+
+#include <iostream>
+#include <array>
+
+namespace ARRD {
+	template<typename T, std::size_t row_count, std::size_t col_count>
+	using array2d = std::array< std::array<T, col_count>, row_count >;
+	
+	template<typename T, std::size_t depth
+		, std::size_t row_count, std::size_t col_count>
+	using array3d = std::array< array2d<T, row_count, col_count>, depth>;
+}
+
+
+template<typename T, std::size_t row_count, std::size_t col_count>
+std::ostream& operator<<(std::ostream& os
+	, const ARRD::array2d<T, row_count, col_count>& arr)
+{
+	for (auto row : arr) {
+		for (T col : row) {
+			os << col << ' ';
+		}
+		os << '\n';
+	}
+	return os << '\n';
+}
+
+template<typename T, std::size_t depth
+	, std::size_t row_count, std::size_t col_count>
+std::ostream& operator<<(std::ostream& os
+	, const ARRD::array3d<T, depth, row_count, col_count>& arr)
+{
+	for (const auto& arr_2d : arr) {
+		os << arr_2d;
+	}
+	return os;
+}
+
+#endif