From cd2d60b4c822db2bc0fba5eec8163b90888a9e6f Mon Sep 17 00:00:00 2001
From: peizhilin <wopeizl@163.com>
Date: Sat, 29 Dec 2018 17:18:26 +0800
Subject: [PATCH] fix build issue for density prior box op on windows
 test=develop

---
 paddle/fluid/operators/detection/density_prior_box_op.cu | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/paddle/fluid/operators/detection/density_prior_box_op.cu b/paddle/fluid/operators/detection/density_prior_box_op.cu
index acd5993154e..6337a4837a6 100644
--- a/paddle/fluid/operators/detection/density_prior_box_op.cu
+++ b/paddle/fluid/operators/detection/density_prior_box_op.cu
@@ -148,7 +148,7 @@ class DensityPriorBoxOpCUDAKernel : public framework::OpKernel<T> {
     // blockx is multiple of 32.
     int blockx = std::min(
         static_cast<int64_t>(((feature_width * num_priors + 31) >> 5) << 5),
-        512L);
+        static_cast<int64_t>(512L));
     int gridx = (feature_width * num_priors + blockx - 1) / blockx;
     dim3 threads(blockx, 1);
     dim3 grids(gridx, feature_height);
-- 
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