From d88414e435b11b67f20ee426c667026dbb08a73d Mon Sep 17 00:00:00 2001
From: a4z <harald.achitz@gmail.com>
Date: Mon, 3 Jul 2017 10:35:19 +0200
Subject: [PATCH] Problem: uninitialized context pointer in socket_t move
 constructor

This can cause monitor_t to crash if used with a socket that was
constructed via the move constructor.

Solution: initialise the context pointer variable ctxptr in the move
constructor.
---
 zmq.hpp | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/zmq.hpp b/zmq.hpp
index 7f8ff6b..3a43228 100644
--- a/zmq.hpp
+++ b/zmq.hpp
@@ -506,9 +506,12 @@ namespace zmq
         #endif
 
 #ifdef ZMQ_HAS_RVALUE_REFS
-        inline socket_t(socket_t&& rhs) ZMQ_NOTHROW : ptr(rhs.ptr)
+        inline socket_t(socket_t&& rhs) ZMQ_NOTHROW :
+            ptr(rhs.ptr),
+            ctxptr(rhs.ctxptr)
         {
-            rhs.ptr = NULL;
+            rhs.ptr    = NULL;
+            rhs.ctxptr = NULL;
         }
         inline socket_t& operator=(socket_t&& rhs) ZMQ_NOTHROW
         {