From f4f5a96b9f12def2e73e07dfc80a386447ecb596 Mon Sep 17 00:00:00 2001
From: nihuini <nihuini@tencent.com>
Date: Fri, 9 Feb 2018 14:08:06 +0800
Subject: [PATCH] fix default concat dim

---
 tools/mxnet/mxnet2ncnn.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/mxnet/mxnet2ncnn.cpp b/tools/mxnet/mxnet2ncnn.cpp
index c651228d6..134ac79b7 100644
--- a/tools/mxnet/mxnet2ncnn.cpp
+++ b/tools/mxnet/mxnet2ncnn.cpp
@@ -1111,7 +1111,7 @@ int main(int argc, char** argv)
         }
         else if (n.op == "Concat")
         {
-            int dim = n.attr("dim");
+            int dim = n.has_attr("dim") ? n.attr("dim") : 1;
             fprintf(pp, " 0=%d", dim-1);
         }
         else if (n.op == "Convolution")