From 74d87a6168527678340a2034febf366b622e3da3 Mon Sep 17 00:00:00 2001
From: engineer1109 <jialiang.wang@xdxct.com>
Date: Fri, 31 Mar 2023 14:25:49 +0800
Subject: [PATCH] [GCC9][Werror]fix -Werror=maybe-uninitialized (#52265)

fix with auto&
---
 .../fluid/operators/detection/roi_perspective_transform_op.cc   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/paddle/fluid/operators/detection/roi_perspective_transform_op.cc b/paddle/fluid/operators/detection/roi_perspective_transform_op.cc
index 4fd205395f8..619d86c9bb2 100644
--- a/paddle/fluid/operators/detection/roi_perspective_transform_op.cc
+++ b/paddle/fluid/operators/detection/roi_perspective_transform_op.cc
@@ -256,7 +256,7 @@ class CPUROIPerspectiveTransformOpKernel : public framework::OpKernel<T> {
     auto transformed_width = ctx.Attr<int>("transformed_width");
     auto spatial_scale = ctx.Attr<float>("spatial_scale");
 
-    auto in_dims = in->dims();
+    const auto& in_dims = in->dims();
     int channels = in_dims[1];
     int in_height = in_dims[2];
     int in_width = in_dims[3];
-- 
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