From a7cb97a1a5b8d865443912afd5d3bd38b95bc1e4 Mon Sep 17 00:00:00 2001
From: Leo Chen <chenqiuliang@baidu.com>
Date: Fri, 5 Jun 2020 19:35:18 +0800
Subject: [PATCH] Fix/isfinite on windows (#24927)

* refine isfinite, test=develop

* use namespace std of isfinite, test=develop, test=win_gpu
---
 paddle/fluid/operators/amp/amp_check_finite_and_scale_op.cu | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/paddle/fluid/operators/amp/amp_check_finite_and_scale_op.cu b/paddle/fluid/operators/amp/amp_check_finite_and_scale_op.cu
index e691dd8bc8f..b92c6901d71 100644
--- a/paddle/fluid/operators/amp/amp_check_finite_and_scale_op.cu
+++ b/paddle/fluid/operators/amp/amp_check_finite_and_scale_op.cu
@@ -25,7 +25,7 @@ __global__ void AmpCheckFiniteAndScale(const T* in, const T* scale, int num,
   const int idx = threadIdx.x + blockIdx.x * blockDim.x;
 
   if (idx < num) {
-    if (!std::isfinite(in[idx])) {
+    if (!isfinite(in[idx])) {
       *found_inf = 1;
     }
     out[idx] = *found_inf ? in[idx] : in[idx] * scale[0];
-- 
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