From 637b2ffaff5857831f1a559698c091939e5f0ec2 Mon Sep 17 00:00:00 2001
From: Peter Dimov <pdimov@pdimov.com>
Date: Mon, 29 May 2017 21:15:49 +0300
Subject: [PATCH] Make BOOST_TEST_EQ/NE work with nullptr

---
 include/boost/core/lightweight_test.hpp |  5 +++++
 test/Jamfile.v2                         |  2 ++
 test/lightweight_test_eq_nullptr.cpp    | 28 +++++++++++++++++++++++++
 3 files changed, 35 insertions(+)
 create mode 100644 test/lightweight_test_eq_nullptr.cpp

diff --git a/include/boost/core/lightweight_test.hpp b/include/boost/core/lightweight_test.hpp
index 260a1ac..fc8ea74 100644
--- a/include/boost/core/lightweight_test.hpp
+++ b/include/boost/core/lightweight_test.hpp
@@ -25,6 +25,7 @@
 #include <boost/core/no_exceptions_support.hpp>
 #include <iostream>
 #include <cstring>
+#include <cstddef>
 
 //  IDE's like Visual Studio perform better if output goes to std::cout or
 //  some other stream, so allow user to configure output stream:
@@ -113,6 +114,10 @@ inline const void* test_output_impl(unsigned char* v) { return v; }
 inline const void* test_output_impl(signed char* v) { return v; }
 template<class T> inline const void* test_output_impl(T volatile* v) { return const_cast<T*>(v); }
 
+#if !defined( BOOST_NO_CXX11_NULLPTR )
+inline const void* test_output_impl(std::nullptr_t v) { return v; }
+#endif
+
 template<class T, class U> inline void test_eq_impl( char const * expr1, char const * expr2,
   char const * file, int line, char const * function, T const & t, U const & u )
 {
diff --git a/test/Jamfile.v2 b/test/Jamfile.v2
index 5e0e5d3..8b1c9b7 100644
--- a/test/Jamfile.v2
+++ b/test/Jamfile.v2
@@ -71,6 +71,8 @@ run lightweight_test_all_with_test.cpp ;
 run lightweight_test_all_with_fail.cpp ;
 run lightweight_test_lt_le_test.cpp ;
 
+run lightweight_test_eq_nullptr.cpp ;
+
 run-fail lightweight_test_fail.cpp ;
 run-fail lightweight_test_fail2.cpp ;
 run-fail lightweight_test_fail3.cpp ;
diff --git a/test/lightweight_test_eq_nullptr.cpp b/test/lightweight_test_eq_nullptr.cpp
new file mode 100644
index 0000000..519d4d8
--- /dev/null
+++ b/test/lightweight_test_eq_nullptr.cpp
@@ -0,0 +1,28 @@
+//
+// Test BOOST_TEST_EQ( p, nullptr )
+//
+// Copyright 2017 Peter Dimov
+//
+// Distributed under the Boost Software License, Version 1.0.
+// See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt
+//
+
+#include <boost/config.hpp>
+#include <boost/core/lightweight_test.hpp>
+
+int main()
+{
+#if !defined( BOOST_NO_CXX11_NULLPTR )
+
+    int x = 0;
+    int* p1 = 0;
+    int* p2 = &x;
+
+    BOOST_TEST_EQ( p1, nullptr );
+    BOOST_TEST_NE( p2, nullptr );
+
+#endif
+
+    return boost::report_errors();
+}