From 4515f3407d14012bea54978ca08cf08f882f7166 Mon Sep 17 00:00:00 2001
From: Viktor UZLOV <vuzlov@debian10-01.nnov.opencascade.com>
Date: Wed, 10 Feb 2021 17:01:33 +0300
Subject: [PATCH] added smIdHasher for SMESH module

---
 src/Basics/smIdType.hxx.in | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/src/Basics/smIdType.hxx.in b/src/Basics/smIdType.hxx.in
index 75315a5da..28b184a37 100644
--- a/src/Basics/smIdType.hxx.in
+++ b/src/Basics/smIdType.hxx.in
@@ -26,6 +26,8 @@
 #cmakedefine SALOME_USE_64BIT_IDS
 
 #include <cinttypes>
+#include <limits>
+#include <NCollection_DataMap.hxx>
 
 #ifndef SALOME_USE_64BIT_IDS
 typedef std::int32_t smIdType;
@@ -33,6 +35,19 @@ typedef std::int32_t smIdType;
 typedef std::int64_t smIdType;
 #endif
 
+struct smIdHasher
+{
+  static Standard_Integer HashCode(const smIdType theValue,  const Standard_Integer theUpperBound)
+  {
+    return IntegerHashCode(static_cast<Standard_Integer> (theValue), std::numeric_limits<smIdType>::max(), theUpperBound);
+  }
+
+  static Standard_Boolean IsEqual( const smIdType& id1, const smIdType& id2 )
+  {
+    return id1 == id2;
+  }
+};
+
 template <class T> inline smIdType ToIdType(T val)
 {
   return static_cast<smIdType>(val);
-- 
2.39.2