From da6d5cb2a8237075f45b9519682bf7168494b700 Mon Sep 17 00:00:00 2001
From: Danny Robson <danny@nerdcruft.net>
Date: Sun, 12 May 2019 07:53:08 +1000
Subject: [PATCH] view: add ssize query

---
 view.hpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/view.hpp b/view.hpp
index dc09e72a..0a50c6b3 100644
--- a/view.hpp
+++ b/view.hpp
@@ -276,6 +276,16 @@ namespace cruft {
             return static_cast<size_type> (std::distance (m_begin, m_end));
         }
 
+
+        ///--------------------------------------------------------------------
+        /// Returns a signed count of items in the view.
+        constexpr ssize_t
+        ssize (void) const noexcept
+        {
+            return std::distance (m_begin, m_end);
+        }
+
+
         ///--------------------------------------------------------------------
         /// Returns a subview of the first `count` elements of this view.
         [[nodiscard]] constexpr auto