From 4cc74b50f1478029ae0185fc1c8f8c41e67e816f Mon Sep 17 00:00:00 2001
From: Tobias Linz <contact@tobilinz.de>
Date: Thu, 12 Nov 2026 10:45:13 +0100
Subject: [PATCH] tweaks

---
 .gitignore                | 1 +
 Startcode/neuralNetwork.c | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/.gitignore b/.gitignore
index a569811..b2f76d7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -38,6 +38,7 @@
 Startcode/mnist
 Startcode/runTests
 Startcode/runMatrixTests
+Startcode/runImageInputTests
 Startcode/runNeuralNetworkTests
 
 # clangd (locally generated, contains absolute paths)
diff --git a/Startcode/neuralNetwork.c b/Startcode/neuralNetwork.c
index 4d860ba..e324681 100644
--- a/Startcode/neuralNetwork.c
+++ b/Startcode/neuralNetwork.c
@@ -180,6 +180,9 @@ static void writeDimension(FILE *file, const unsigned int dimension)
 
 static void writeMatrix(FILE *file, const Matrix matrix)
 {
+    if (matrix.buffer == NULL) 
+        return;
+
     fwrite(matrix.buffer, sizeof(MatrixType), matrix.rows * matrix.cols, file);
 }