From 16b63f8cdf5b488ab2f4b0e029478b01a2d6b8a8 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Tue, 10 Jul 2018 09:20:25 +0200
Subject: Add support for hashing ifdstream

---
 libbutl/sha1.mxx | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'libbutl/sha1.mxx')

diff --git a/libbutl/sha1.mxx b/libbutl/sha1.mxx
index a3b75d7..ea4d240 100644
--- a/libbutl/sha1.mxx
+++ b/libbutl/sha1.mxx
@@ -28,6 +28,8 @@ import std.core;
 
 LIBBUTL_MODEXPORT namespace butl
 {
+  class ifdstream;
+
   // SHA1 checksum calculator.
   //
   // For a single chunk of data a sum can be obtained in one line, for
@@ -64,6 +66,14 @@ LIBBUTL_MODEXPORT namespace butl
     explicit
     sha1 (const char* s): sha1 () {append (s);}
 
+    // Append stream.
+    //
+    void
+    append (ifdstream&);
+
+    explicit
+    sha1 (ifdstream& i): sha1 () {append (i);}
+
     // Extract result.
     //
     // It can be obtained as either a 20-byte binary digest or as a 40-
-- 
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