From fd7ac4e5cae10501b510187687d3cdb92d717c7f Mon Sep 17 00:00:00 2001
From: "Alexander A. Klimov" <alexander.klimov@icinga.com>
Date: Tue, 18 Oct 2022 10:26:13 +0200
Subject: [PATCH] Allow hashmaps of String

---
 lib/base/string.cpp | 5 +++++
 lib/base/string.hpp | 7 +++++++
 2 files changed, 12 insertions(+)

diff --git a/lib/base/string.cpp b/lib/base/string.cpp
index eec5b8372..e4e5c273c 100644
--- a/lib/base/string.cpp
+++ b/lib/base/string.cpp
@@ -461,3 +461,8 @@ String::ConstIterator icinga::range_end(const String& x)
 {
 	return x.End();
 }
+
+std::size_t std::hash<String>::operator()(const String& s) const noexcept
+{
+	return std::hash<std::string>{}(s.GetData());
+}
diff --git a/lib/base/string.hpp b/lib/base/string.hpp
index b9290eeee..10ddaf977 100644
--- a/lib/base/string.hpp
+++ b/lib/base/string.hpp
@@ -7,6 +7,7 @@
 #include "base/object.hpp"
 #include <boost/range/iterator.hpp>
 #include <boost/utility/string_view.hpp>
+#include <functional>
 #include <string>
 #include <iosfwd>
 
@@ -178,6 +179,12 @@ String::ConstIterator range_end(const String& x);
 
 }
 
+template<>
+struct std::hash<icinga::String>
+{
+	std::size_t operator()(const icinga::String& s) const noexcept;
+};
+
 extern template class std::vector<icinga::String>;
 
 namespace boost