added some alternatives, however non of them work

matrix.c

@@ -131,4 +131,17 @@ Matrix multiply(const Matrix matrix1, const Matrix matrix2)
             }
     }
     return result;
+}
+void writeMatrix(Matrix matrix, FILE *file)//Added for neuralNetworkTests
+{
+	//fprintf(file, "%d%d", matrix.rows, matrix.cols);
+	for(int i = 0; i < matrix.rows; i++)
+	{
+		for(int j = 0; j < matrix.cols; j++)
+		{
+			putw(*(matrix.buffer + (j+i)*sizeof(MatrixType)), file);
+			//fprintf(file, "%f", *(matrix.buffer + (j+i)*sizeof(MatrixType)));
+			printf("%f", *(matrix.buffer + (j+i)*sizeof(MatrixType)));
+		}
+	}
 }

matrix.h

@@ -21,6 +21,7 @@ void setMatrixAt(MatrixType value, Matrix matrix, unsigned int rowIdx, unsigned
 MatrixType getMatrixAt(const Matrix matrix, unsigned int rowIdx, unsigned int colIdx);
 Matrix add(const Matrix matrix1, const Matrix matrix2);
 Matrix multiply(const Matrix matrix1, const Matrix matrix2);
+void writeMatrix(Matrix matrix, FILE *file);//Added for neuralNetworkTests
 
 
 #endif

neuralNetwork.c

@@ -170,7 +170,7 @@ NeuralNetwork loadModel(const char *path)
 
 static Matrix imageBatchToMatrixOfImageVectors(const GrayScaleImage images[], unsigned int count)
 {
-    Matrix matrix = {0, 0, NULL}; // TODO changed this line to fit our functionality
+    Matrix matrix = {NULL, 0, 0};
 
     if(count > 0 && images != NULL)
     {

neuralNetworkTests.c

@@ -4,33 +4,23 @@
 #include <math.h>
 #include "unity.h"
 #include "neuralNetwork.h"
+#include "matrix.h"
 
 
 static void prepareNeuralNetworkFile(const char *path, const NeuralNetwork nn)
 {
-    // TODO
-	FILE* file = fopen(path, "wb");
-	if(file == NULL) {
-		printf("Failed to open file");
-		return;
+	FILE *testDatei = fopen(path, "w");
+	fprintf(testDatei, "__info2_neural_network_file_format__");
+	fprintf(testDatei, "%d%d", nn.layers->weights.rows, nn.layers->weights.cols);
+	// fprintf(testDatei, (char*) nn.numberOfLayers);
+	for(int i = 0; i < nn.numberOfLayers; i++)
+	{
+		//fprintf(testDatei, "\n");
+		//putw((nn.layers + sizeof(Layer) * i), testDatei);
+		writeMatrix(nn.layers[i].weights, testDatei);
+		writeMatrix(nn.layers[i].biases, testDatei);
 	}
-
-	const char* header = "__info2_neural_network_file_format__";
-	fwrite(header, sizeof(const char), strlen(header), file);
-	fwrite(&(nn.numberOfLayers), sizeof(unsigned int), 1, file);
-	fwrite(&(nn.numberOfLayers), sizeof(unsigned int), 1, file);
-	for(int i = 0; i < nn.numberOfLayers; i++) {
-		//write everything to do with weights
-		fwrite(&(nn.layers[i].weights.rows), sizeof(unsigned int), 1, file);
-		fwrite(&(nn.layers[i].weights.cols), sizeof(unsigned int), 1, file);
-		fwrite(nn.layers[i].weights.buffer, sizeof(MatrixType), nn.layers[i].weights.rows * nn.layers[i].weights.cols, file);
-
-		//write everything to do with biases
-		fwrite(&(nn.layers[i].biases.rows), sizeof(unsigned int), 1, file);
-		fwrite(&(nn.layers[i].biases.cols), sizeof(unsigned int), 1, file);
-		fwrite(nn.layers[i].biases.buffer, sizeof(MatrixType), nn.layers[i].biases.rows * nn.layers[i].biases.cols, file);
-	}
-	fclose(file);
+	fclose(testDatei);
 }
 
 void test_loadModelReturnsCorrectNumberOfLayers(void)
@@ -53,7 +43,7 @@ void test_loadModelReturnsCorrectNumberOfLayers(void)
 
     netUnderTest = loadModel(path);
     remove(path);
-
+	printf("\n%d\n%d\n", netUnderTest.numberOfLayers, expectedNet.numberOfLayers);
     TEST_ASSERT_EQUAL_INT(expectedNet.numberOfLayers, netUnderTest.numberOfLayers);
     clearModel(&netUnderTest);
 }