From 493b84e4d17240eaa274207e4484f85dac608a17 Mon Sep 17 00:00:00 2001
From: sunwen <sunwen@realcan.cn>
Date: Tue, 25 Apr 2023 15:07:12 +0800
Subject: [PATCH] Fix null matrix printf bug.

---
 src/Matrix.cpp | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/Matrix.cpp b/src/Matrix.cpp
index 2094229..0d9f346 100644
--- a/src/Matrix.cpp
+++ b/src/Matrix.cpp
@@ -423,12 +423,14 @@ namespace Aurora {
     Matrix Matrix::operator^(int times) const { return operatorMxA(&vdPowI, times, *this);}
     Matrix operator^( Matrix &&matrix,int times) {
         return operatorMxA(&vdPowI, times, std::forward<Matrix&&>(matrix));
-    }
-    
-
-
+    }    
 
     void Matrix::printf() {
+        if(isNull())
+        {
+            ::printf("null matrix\n");
+            return;
+        }
         int k_count = getDimSize(2);
         int j_count = getDimSize(1);
         int complexstep = 1;