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include/neural_network/layer/trainable_layer.hpp

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+/**++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+ *
+ *                                              PANIC
+ *                              Portable Algorithms and Numerics In C++
+ *
+ *                       Scientific computing from scratch, with feeling.
+ *
+ * Copyright (c) 2026 Michelle Bausager
+ *
+ * This file is part of PANIC.
+ *
+ * PANIC is free software licensed under the GNU General Public License v3.0 or later.
+ * You may redistribute and/or modify it under the terms of the GPL.
+ *
+ * PANIC is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the LICENSE file for the full license text.
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ *
+ *++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+ *
+ * Project Name:      PANIC
+ * Module Name:       neural_network
+ * File Name:         trainable_layer.hpp
+ * Revision:          0.1.0
+ * Date:              23-06-2026
+ * Author:            Michelle Bausager
+ *
+ * Description:
+ * Defines the base trainable_layer struct used in other layers in neural network
+ *
+ *++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+#pragma once
+//---------------------------------------------------------------------------------------------------------------------------
+// INCLUDE DESCRIPTION
+//---------------------------------------------------------------------------------------------------------------------------
+#include <config/types.hpp> // panic::uint_t, panic::int_t, and panic::real_t
+#include <neural_network/layer/layer.hpp>
+#include <tensor/matrix.hpp> // panic::tensor::real_matrix (uint_matrix, int_matrix)
+
+
+namespace panic{
+	namespace neural_network{
+
+
+
+/**
+ * @brief Base trainable_layer for the rest of the neural network library to use
+ *
+ *    	This base trainable_layer should be used in all layers/activations that have trainable variables
+ * 		This is done so it's easy to make a list of layers in the model to loop over.
+ * 		The virtual means it should use derived object's version when called with a pointer.
+ * 		The =0 means the derivative object NEEDS to have these functions to work.
+ * 
+ * The struct is used for PANIC neural_network library.
+ */
+struct trainable_layer:layer{
+
+    panic::tensor::real_matrix weights;
+    panic::tensor::real_vector biases;
+
+    panic::tensor::real_matrix dweights;
+    panic::tensor::real_vector dbiases;
+
+
+	virtual ~trainable_layer() = default;
+
+
+};
+
+
+
+	} // namespace tensor
+} // namespace panic
+
+
+