From 38a151f6b970f966e11b1843203e9ac0e372422d Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Sat, 30 Jan 2016 20:15:18 +0200
Subject: Print <empty-version> instead of throwing

---
 bpkg/manifest | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/bpkg/manifest b/bpkg/manifest
index d932b2a..5d19ea5 100644
--- a/bpkg/manifest
+++ b/bpkg/manifest
@@ -147,7 +147,10 @@ namespace bpkg
   };
 
   inline std::ostream&
-  operator<< (std::ostream& os, const version& v) {return os << v.string ();}
+  operator<< (std::ostream& os, const version& v)
+  {
+    return os << (v.empty () ? "<empty-version>" : v.string ());
+  }
 
   // priority
   //
-- 
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