From f864724d3758da9df8583df00b202d1f578e42a3 Mon Sep 17 00:00:00 2001
From: gcontini <1121667+gcontini@users.noreply.github.com>
Date: 周四, 20 5月 2021 20:34:39 +0800
Subject: [PATCH] fix missing boost lib from ubuntu 20.04

---
 src/library/base/EventRegistry.cpp |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/src/library/base/EventRegistry.cpp b/src/library/base/EventRegistry.cpp
index ed0f074..961e72b 100644
--- a/src/library/base/EventRegistry.cpp
+++ b/src/library/base/EventRegistry.cpp
@@ -10,6 +10,7 @@
 #include <algorithm>
 #include <map>
 #include <iostream>
+#include <sstream>
 
 #include "EventRegistry.h"
 #define LIC_ID_NOT_DEFINED "UNDEF"
@@ -41,6 +42,12 @@
 	return out;
 }
 
+string EventRegistry::to_string() const {
+	std::stringstream ss;
+	ss << this;
+	return ss.str();
+}
+
 void EventRegistry::append(const EventRegistry &eventRegistry) {
 	logs.insert(logs.end(), eventRegistry.logs.begin(), eventRegistry.logs.end());
 }

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