From 30e436bba66673e17728e3ba3291b58dd16c1696 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Sat, 7 Jul 2018 10:46:25 +0200
Subject: Add optional message to invalid_option exception

---
 cli/options.hxx | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'cli/options.hxx')

diff --git a/cli/options.hxx b/cli/options.hxx
index dae58b6..dce59bd 100644
--- a/cli/options.hxx
+++ b/cli/options.hxx
@@ -153,7 +153,8 @@ namespace cli
     ~invalid_value () throw ();
 
     invalid_value (const std::string& option,
-                   const std::string& value);
+                   const std::string& value,
+                   const std::string& message = std::string ());
 
     const std::string&
     option () const;
@@ -161,6 +162,9 @@ namespace cli
     const std::string&
     value () const;
 
+    const std::string&
+    message () const;
+
     virtual void
     print (::std::ostream&) const;
 
@@ -170,6 +174,7 @@ namespace cli
     private:
     std::string option_;
     std::string value_;
+    std::string message_;
   };
 
   class eos_reached: public exception
-- 
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