From 22f2cf3ccc6d0c9ba2c2860735e789d6b3a25f72 Mon Sep 17 00:00:00 2001
From: Noel Grandin <noel.grandin@collabora.co.uk>
Date: Mon, 29 Apr 2019 16:24:12 +0200
Subject: implement std::hash for css::uno::Reference and rtl::Reference

The declaration in BarChart.cxx is particularly suspicious, because it
was using a < for the KeyEqual template parameter.
Been there since:
    commit b2c3233e5f267b5d244d722a94424a3b224b3314
    Date:   Thu Dec 21 20:08:33 2017 +0900
    chart2: suspend/resume setting rects dirty for 3D shapes

comphelper::OInterfaceCompare is no longer necessary

Change-Id: I8278c4a3d9113a18570ca237cd05d553ec8f3975
Reviewed-on: https://gerrit.libreoffice.org/71537
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
---
 include/com/sun/star/uno/Reference.hxx | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

(limited to 'include/com/sun/star/uno/Reference.hxx')

diff --git a/include/com/sun/star/uno/Reference.hxx b/include/com/sun/star/uno/Reference.hxx
index d822c97aeb2d..c6869d922d7e 100644
--- a/include/com/sun/star/uno/Reference.hxx
+++ b/include/com/sun/star/uno/Reference.hxx
@@ -450,6 +450,26 @@ operator <<(
 }
 }
 
+#if defined LIBO_INTERNAL_ONLY
+namespace std
+{
+
+/**
+  Make css::uno::Reference hashable by default for use in STL containers.
+
+  @since LibreOffice 6.3
+*/
+template<typename T>
+struct hash<::css::uno::Reference<T>>
+{
+    std::size_t operator()(::css::uno::Reference<T> const & s) const
+    { return size_t(s.get()); }
+};
+
+}
+
+#endif
+
 #endif
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
-- 
cgit