Bug-Fix create matrix

matrix.c

@@ -8,6 +8,16 @@
 Matrix createMatrix(unsigned int rows, unsigned int cols)
 {
     Matrix matrix;
+
+    if(rows == 0 || cols == 0)
+    {
+        matrix.rows = 0;
+        matrix.cols = 0;
+        matrix.data = NULL;
+        return matrix;
+    }
+
+
     matrix.rows = rows;
     matrix.cols = cols;
 
@@ -29,6 +39,7 @@ Matrix createMatrix(unsigned int rows, unsigned int cols)
             matrix.data[i * matrix.cols + j] = UNDEFINED_MATRIX_VALUE;
         }
     }
+    return matrix;
 }
 
 void clearMatrix(Matrix *matrix)

matrix.h

@@ -11,6 +11,7 @@ typedef struct Matrix {
     unsigned int rows;
     unsigned int cols;
     MatrixType *data;
+    #define buffer data
 }   Matrix;