From 6739797d22f2fb8181b6da1cf17cc7659f61964a Mon Sep 17 00:00:00 2001
From: minqiyang <minqiyang@baidu.com>
Date: Mon, 2 Jul 2018 20:44:44 +0800
Subject: [PATCH] Add empty template for Sprintf

---
 paddle/fluid/string/printf.h | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/paddle/fluid/string/printf.h b/paddle/fluid/string/printf.h
index e0f620250..65dec970d 100644
--- a/paddle/fluid/string/printf.h
+++ b/paddle/fluid/string/printf.h
@@ -84,7 +84,16 @@ void Fprintf(std::ostream& out, const char* fmt, const Args&... args) {
 }
 
 template <typename... Args>
-std::string Sprintf(const char* fmt = "", const Args&... args) {
+std::string Sprintf(const Args&... args) {
+  if (0u == sizeof...(args)) {
+    Sprintf("", args);
+  }
+
+  return Sprintf(args, args);
+}
+
+template <typename... Args>
+std::string Sprintf(const char* fmt, const Args&... args) {
   std::ostringstream oss;
   Fprintf(oss, fmt, args...);
   return oss.str();
-- 
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