Add address-model=32,64 to Appveyor

appveyor.yml

@@ -1,4 +1,4 @@
-# Copyright 2016, 2017 Peter Dimov
+# Copyright 2016-2018 Peter Dimov
 # Distributed under the Boost Software License, Version 1.0.
 # (See accompanying file LICENSE_1_0.txt or copy at http://boost.org/LICENSE_1_0.txt)
 
@@ -16,11 +16,14 @@ environment:
   matrix:
     - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2013
       TOOLSET: msvc-9.0,msvc-10.0,msvc-11.0,msvc-12.0
+      ADDRMD: 32,64
     - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
       TOOLSET: msvc-14.0
+      ADDRMD: 32,64
     - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
       TOOLSET: msvc-14.1
       CXXSTD: 14,17
+      ADDRMD: 32,64
 
 install:
   - set BOOST_BRANCH=develop
@@ -51,4 +54,5 @@ build: off
 
 test_script:
   - if not "%CXXSTD%" == "" set CXXSTD=cxxstd=%CXXSTD%
-  - b2 -j3 libs/smart_ptr/test toolset=%TOOLSET% %CXXSTD% variant=debug,release
+  - if not "%ADDRMD%" == "" set ADDRMD=address-model=%ADDRMD%
+  - b2 -j3 libs/smart_ptr/test toolset=%TOOLSET% %CXXSTD% %ADDRMD% variant=debug,release