From 173e18a289088c6087ba6fac708e322aa63b7a94 Mon Sep 17 00:00:00 2001
From: Karl-Johan Alm <karljohan-alm@garage.co.jp>
Date: Tue, 17 Jul 2018 14:05:04 +0900
Subject: [PATCH] utils: Add insert() convenience templates

---
 src/util.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/util.h b/src/util.h
index f8bcc0192..c3003e66a 100644
--- a/src/util.h
+++ b/src/util.h
@@ -355,4 +355,18 @@ std::string CopyrightHolders(const std::string& strPrefix);
  */
 int ScheduleBatchPriority(void);
 
+namespace util {
+
+//! Simplification of std insertion
+template <typename Tdst, typename Tsrc>
+inline void insert(Tdst& dst, const Tsrc& src) {
+    dst.insert(dst.begin(), src.begin(), src.end());
+}
+template <typename TsetT, typename Tsrc>
+inline void insert(std::set<TsetT>& dst, const Tsrc& src) {
+    dst.insert(src.begin(), src.end());
+}
+
+} // namespace util
+
 #endif // BITCOIN_UTIL_H