From b517f9cd2684d2b6a5540c9ff64bad19acee4bc1 Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Wed, 17 Oct 2018 13:28:05 +0300
Subject: Add function_cast() to utility.mxx

---
 libbutl/utility.ixx | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'libbutl/utility.ixx')

diff --git a/libbutl/utility.ixx b/libbutl/utility.ixx
index 565a694..e17462a 100644
--- a/libbutl/utility.ixx
+++ b/libbutl/utility.ixx
@@ -212,4 +212,13 @@ namespace butl
 
     return nullopt;
   }
+
+  template <typename F>
+  inline F
+  function_cast (void* p)
+  {
+    union { void* p; F f; } r;
+    r.p = p;
+    return r.f;
+  }
 }
-- 
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