From 759a9d3ab5a2a25d32f7e9c7c1e5d9745ab773b2 Mon Sep 17 00:00:00 2001
From: caoying03 <caoying03@baidu.com>
Date: Mon, 14 Aug 2017 12:38:06 +0800
Subject: [PATCH] follow comments.

---
 paddle/gserver/tests/LayerGradUtil.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/paddle/gserver/tests/LayerGradUtil.h b/paddle/gserver/tests/LayerGradUtil.h
index a35edd2b5..88e831f78 100644
--- a/paddle/gserver/tests/LayerGradUtil.h
+++ b/paddle/gserver/tests/LayerGradUtil.h
@@ -98,9 +98,9 @@ struct InputDef {
 
   InputDef(InputType type,
            string nameIn,
-           std::vector<int> ids,
-           std::vector<int> selfDefinedSeqStartPos = {},
-           std::vector<int> selfDefinedSubSeqStartPos = {})
+           const std::vector<int>& ids,
+           const std::vector<int>& selfDefinedSeqStartPos = {},
+           const std::vector<int>& selfDefinedSubSeqStartPos = {})
       : labelSeqStartPositions(selfDefinedSeqStartPos),
         labelSubSeqStartPositions(selfDefinedSubSeqStartPos),
         ids(ids) {
-- 
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