1 files changed, 23 insertions, 0 deletions
diff --git a/butl/fdstream.ixx b/butl/fdstream.ixx
index 0d3d098..884d190 100644
--- a/butl/fdstream.ixx
+++ b/butl/fdstream.ixx
@@ -30,6 +30,14 @@ namespace butl
     reset ();
   }
 
+  // fdbuf
+  //
+  inline auto_fd fdbuf::
+  release ()
+  {
+    return std::move (fd_);
+  }
+
   // ifdstream
   //
   inline ifdstream::
@@ -104,6 +112,12 @@ namespace butl
     open (f.string (), m);
   }
 
+  inline auto_fd ifdstream::
+  release ()
+  {
+    return buf_.release ();
+  }
+
   // ofdstream
   //
   inline ofdstream::
@@ -176,6 +190,15 @@ namespace butl
     open (f.string (), m);
   }
 
+  inline auto_fd ofdstream::
+  release ()
+  {
+    if (is_open ())
+      flush ();
+
+    return buf_.release ();
+  }
+
   // fdopen()
   //
   inline auto_fd