create matrix mit null

makefile

@@ -57,12 +57,10 @@ imageInputTests: imageInput.o imageInputTests.c $(unityfolder)/unity.c
 # --------------------------
 # Clean
 # --------------------------
-#clean:
-#ifeq ($(OS),Windows_NT)
-#	del /f *.o *.exe
-#else
-#	rm -f *.o mnist runMatrixTests runNeuralNetworkTests runImageInputTests
-#endif
-# clean für windows
 clean:
-	rm -f *.o *.exe 
+ifeq ($(OS),Windows_NT)
+	del /f *.o *.exe
+else
+	rm -f *.o mnist runMatrixTests runNeuralNetworkTests runImageInputTests
+endif
+ 

matrix.c

@@ -8,6 +8,10 @@
     MatrixType *buffer; //Zeiger auf Speicherbereich Reihen*Spalten
 } Matrix;*/
 Matrix createMatrix(unsigned int rows, unsigned int cols) {
+  if (cols == 0 || rows == 0){
+    Matrix errorMatrix = {0, 0, NULL};
+    return errorMatrix;
+  }
   MatrixType *buffer =
       malloc(rows * cols * sizeof(MatrixType)); // Speicher reservieren, malloc
                                                 // liefert Zeiger auf Speicher