From 3ee2c53cbf354403797f0fd660e0d92ff6156b52 Mon Sep 17 00:00:00 2001
From: Peter Dimov <pdimov@pdimov.com>
Date: Sun, 21 Jan 2018 22:29:58 +0200
Subject: [PATCH] Add equality tests using two libraries returning equivalent
 error codes, to check that the categories have sigle instances

---
 test/Jamfile.v2            |  5 +++++
 test/single_instance_1.cpp | 13 ++++++++++---
 test/single_instance_2.cpp | 13 ++++++++++---
 3 files changed, 25 insertions(+), 6 deletions(-)

diff --git a/test/Jamfile.v2 b/test/Jamfile.v2
index 612d475..c7ce094 100644
--- a/test/Jamfile.v2
+++ b/test/Jamfile.v2
@@ -21,6 +21,9 @@ project
        <link>static:<define>BOOST_SYSTEM_STATIC_LINK=1
      ;
 
+   lib single_instance_lib1 : single_instance_1.cpp : <link>shared:<define>SINGLE_INSTANCE_DYN_LINK ;
+   lib single_instance_lib2 : single_instance_2.cpp : <link>shared:<define>SINGLE_INSTANCE_DYN_LINK ;
+
    rule cxx03 ( properties * )
    {
       local result ;
@@ -107,6 +110,8 @@ project
          [ system-run- std_interop_test.cpp ]
          [ system-run std_mismatch_test.cpp ]
          [ system-run single_instance_test.cpp single_instance_1.cpp single_instance_2.cpp ]
+         [ run single_instance_test.cpp single_instance_lib1 single_instance_lib2 : : : <link>static : single_instance_lib_static ]
+         [ run single_instance_test.cpp single_instance_lib1 single_instance_lib2 : : : <link>shared : single_instance_lib_shared ]
          [ system-run before_main_test.cpp ]
          ;
 
diff --git a/test/single_instance_1.cpp b/test/single_instance_1.cpp
index 35a7240..3bee8a8 100644
--- a/test/single_instance_1.cpp
+++ b/test/single_instance_1.cpp
@@ -2,19 +2,26 @@
 // Copyright 2018 Peter Dimov.
 // Distributed under the Boost Software License, Version 1.0.
 
-#include <boost/system/error_code.hpp>
+#include <boost/config.hpp>
 
+#if defined(SINGLE_INSTANCE_DYN_LINK) && defined(BOOST_HAS_DECLSPEC)
+# define EXPORT __declspec(dllexport)
+#else
+# define EXPORT
+#endif
+
+#include <boost/system/error_code.hpp>
 using namespace boost::system;
 
 namespace lib1
 {
 
-error_code get_system_code()
+EXPORT error_code get_system_code()
 {
     return error_code( 0, system_category() );
 }
 
-error_code get_generic_code()
+EXPORT error_code get_generic_code()
 {
     return error_code( 0, generic_category() );
 }
diff --git a/test/single_instance_2.cpp b/test/single_instance_2.cpp
index 91cbe24..6a3cc63 100644
--- a/test/single_instance_2.cpp
+++ b/test/single_instance_2.cpp
@@ -2,19 +2,26 @@
 // Copyright 2018 Peter Dimov.
 // Distributed under the Boost Software License, Version 1.0.
 
-#include <boost/system/error_code.hpp>
+#include <boost/config.hpp>
 
+#if defined(SINGLE_INSTANCE_DYN_LINK) && defined(BOOST_HAS_DECLSPEC)
+# define EXPORT __declspec(dllexport)
+#else
+# define EXPORT
+#endif
+
+#include <boost/system/error_code.hpp>
 using namespace boost::system;
 
 namespace lib2
 {
 
-error_code get_system_code()
+EXPORT error_code get_system_code()
 {
     return error_code( 0, system_category() );
 }
 
-error_code get_generic_code()
+EXPORT error_code get_generic_code()
 {
     return error_code( 0, generic_category() );
 }