From 2e0b51baa46c43abf5940a1db77e885eee298839 Mon Sep 17 00:00:00 2001
From: Danny Robson <danny@nerdcruft.net>
Date: Fri, 21 Sep 2018 17:00:56 +1000
Subject: [PATCH] alloc/raw/linear: enable move operators

---
 alloc/raw/linear.cpp | 20 ++++++++++++++++++++
 alloc/raw/linear.hpp |  9 +++++----
 2 files changed, 25 insertions(+), 4 deletions(-)

diff --git a/alloc/raw/linear.cpp b/alloc/raw/linear.cpp
index 4928964b..85661786 100644
--- a/alloc/raw/linear.cpp
+++ b/alloc/raw/linear.cpp
@@ -22,6 +22,26 @@ linear::linear (cruft::view<std::byte*> _data):
 { ; }
 
 
+///////////////////////////////////////////////////////////////////////////////
+linear::linear (linear &&rhs)
+    : m_begin  (std::exchange (rhs.m_begin,  nullptr))
+    , m_end    (std::exchange (rhs.m_end,    nullptr))
+    , m_cursor (std::exchange (rhs.m_cursor, nullptr))
+{ ; }
+
+
+//-----------------------------------------------------------------------------
+linear&
+linear::operator= (cruft::alloc::raw::linear &&rhs)
+{
+    m_begin  = std::exchange (rhs.m_begin,  nullptr);
+    m_end    = std::exchange (rhs.m_end,    nullptr);
+    m_cursor = std::exchange (rhs.m_cursor, nullptr);
+
+    return *this;
+}
+
+
 ///////////////////////////////////////////////////////////////////////////////
 std::byte*
 linear::data (void)
diff --git a/alloc/raw/linear.hpp b/alloc/raw/linear.hpp
index 61170e04..ab2e19c1 100644
--- a/alloc/raw/linear.hpp
+++ b/alloc/raw/linear.hpp
@@ -21,9 +21,10 @@ namespace cruft::alloc::raw {
     class linear {
     public:
         linear (const linear&) = delete;
-        linear (linear&&) = delete;
         linear& operator= (const linear&) = delete;
-        linear& operator= (linear&&) = delete;
+
+        linear (linear&&);
+        linear& operator= (linear&&);
 
         linear (cruft::view<std::byte*> _data);
 
@@ -98,8 +99,8 @@ namespace cruft::alloc::raw {
         size_t remain   (void) const;
 
     protected:
-        std::byte *const m_begin;
-        std::byte *const m_end;
+        std::byte *m_begin;
+        std::byte *m_end;
         std::byte *m_cursor;
     };
 }