From db82b9e227e0e37e05a2267eb42bbf2271360151 Mon Sep 17 00:00:00 2001
From: Jiabin Yang <360788950@qq.com>
Date: Tue, 7 Mar 2023 11:46:31 +0800
Subject: [PATCH] support erf fp64 error (#51241)

---
 paddle/fluid/prim/api/manual_prim/static_prim_api.cc | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/paddle/fluid/prim/api/manual_prim/static_prim_api.cc b/paddle/fluid/prim/api/manual_prim/static_prim_api.cc
index 01e0f4a10eb..54f419e4a9f 100644
--- a/paddle/fluid/prim/api/manual_prim/static_prim_api.cc
+++ b/paddle/fluid/prim/api/manual_prim/static_prim_api.cc
@@ -76,9 +76,12 @@ Tensor full<DescTensor>(const IntArray& shape,
     case phi::DataType::FLOAT32:
       op->SetAttr("value", value.to<float>());
       break;
-    case phi::DataType::FLOAT64:
-      op->SetAttr("str_value", std::to_string(value.to<double>()));
+    case phi::DataType::FLOAT64: {
+      std::stringstream ss;
+      ss << std::setprecision(20) << value.to<double>();
+      op->SetAttr("str_value", ss.str());
       break;
+    }
     case phi::DataType::BOOL:
       op->SetAttr("str_value", std::to_string(value.to<bool>()));
       break;
-- 
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