Fix BOOST_MPL_AUX_ASSERT_NOT_NA

Some 3rdparty parsers (e.g. Qt moc) fail to parse the bitand.hpp
due to the fact that bitand is a keyword in C++, not a macro.
Modern MSVC versions define bitand/bitor only if __cplusplus macro
is not defined, see iso646.h: https://pastebin.com/zTcd0juT

Thus, boost can also check the macro only in C mode making moc happy

.appveyor.yml

@@ -33,6 +33,12 @@ branches:
     - /fix\/.*/
     - /pr\/.*/
 
+skip_commits:
+  files:
+    - LICENSE
+    - meta/*
+    - README.md
+
 matrix:
   fast_finish: false
   # Adding MAYFAIL to any matrix job allows it to fail but the build stays green:
@@ -64,16 +70,6 @@ environment:
       B2_CXXSTD: 14,17
       B2_TOOLSET: msvc-14.1
 
-    - FLAVOR: clang-cl
-      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
-      B2_ADDRESS_MODEL: 64
-      B2_CXXSTD: 11,14,17
-      B2_TOOLSET: clang-win
-
-    - FLAVOR: Visual Studio 2015, 2013
-      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
-      B2_TOOLSET: msvc-12.0,msvc-14.0
-
     - FLAVOR: cygwin (32-bit)
       APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
       ADDPATH: C:\cygwin\bin;
@@ -88,20 +84,6 @@ environment:
       B2_CXXSTD: 03,11,14,1z
       B2_TOOLSET: gcc
 
-    - FLAVOR: mingw32
-      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
-      B2_ADDRESS_MODEL: 32
-      ADDPATH: C:\mingw\bin;
-      B2_CXXSTD: 03,11,14,1z
-      B2_TOOLSET: gcc
-
-    - FLAVOR: mingw64
-      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
-      ADDPATH: C:\mingw-w64\x86_64-8.1.0-posix-seh-rt_v6-rev0\mingw64\bin;
-      B2_ADDRESS_MODEL: 64
-      B2_CXXSTD: 03,11,14,17,2a
-      B2_TOOLSET: gcc
-
 install:
   - git clone --depth 1 https://github.com/boostorg/boost-ci.git C:\boost-ci-cloned
   # Copy ci folder if not testing Boost.CI

README.md

@@ -1,8 +1,8 @@
-MPL, part of collection of the [Boost C++ Libraries](http://github.com/boostorg), provides a general-purpose, high-level C++ template metaprogramming framework of compile-time algorithms, sequences and metafunctions.
+MPL, part of collection of the [Boost C++ Libraries](https://github.com/boostorg), provides a general-purpose, high-level C++ template metaprogramming framework of compile-time algorithms, sequences and metafunctions.
 
 ### License
 
-Distributed under the [Boost Software License, Version 1.0](http://www.boost.org/LICENSE_1_0.txt).
+Distributed under the [Boost Software License, Version 1.0](https://www.boost.org/LICENSE_1_0.txt).
 
 ### Properties
 
@@ -11,10 +11,11 @@ Distributed under the [Boost Software License, Version 1.0](http://www.boost.org
 
 ### Build Status
 
-Branch          | GHA CI | Appveyor | Coverity Scan | codecov.io | Deps | Docs | Tests |
-:-------------: | ------ | -------- | ------------- | ---------- | ---- | ---- | ----- |
-[`master`](https://github.com/boostorg/mpl/tree/master) | [![Build Status](https://github.com/boostorg/mpl/actions/workflows/ci.yml/badge.svg?branch=master)](https://github.com/boostorg/mpl/actions?query=branch:master) | [![Build status](https://ci.appveyor.com/api/projects/status/lx9pjj2ixqod6flb/branch/master?svg=true)](https://ci.appveyor.com/project/jeking3/mpl-nrhfm/branch/master) | [![Coverity Scan Build Status](https://scan.coverity.com/projects/15866/badge.svg)](https://scan.coverity.com/projects/boostorg-mpl) | [![codecov](https://codecov.io/gh/boostorg/mpl/branch/master/graph/badge.svg)](https://codecov.io/gh/boostorg/mpl/branch/master)| [![Deps](https://img.shields.io/badge/deps-master-brightgreen.svg)](https://pdimov.github.io/boostdep-report/master/mpl.html) | [![Documentation](https://img.shields.io/badge/docs-master-brightgreen.svg)](https://www.boost.org/doc/libs/master/libs/mpl/doc/index.html) | [![Enter the Matrix](https://img.shields.io/badge/matrix-master-brightgreen.svg)](http://www.boost.org/development/tests/master/developer/mpl.html)
-[`develop`](https://github.com/boostorg/mpl/tree/develop) | [![Build Status](https://github.com/boostorg/mpl/actions/workflows/ci.yml/badge.svg?branch=develop)](https://github.com/boostorg/mpl/actions?query=branch:develop) | [![Build status](https://ci.appveyor.com/api/projects/status/lx9pjj2ixqod6flb/branch/develop?svg=true)](https://ci.appveyor.com/project/jeking3/mpl-nrhfm/branch/develop) | [![Coverity Scan Build Status](https://scan.coverity.com/projects/15866/badge.svg)](https://scan.coverity.com/projects/boostorg-mpl) | [![codecov](https://codecov.io/gh/boostorg/mpl/branch/develop/graph/badge.svg)](https://codecov.io/gh/boostorg/mpl/branch/develop) | [![Deps](https://img.shields.io/badge/deps-develop-brightgreen.svg)](https://pdimov.github.io/boostdep-report/develop/mpl.html) | [![Documentation](https://img.shields.io/badge/docs-develop-brightgreen.svg)](https://www.boost.org/doc/libs/develop/libs/mpl/doc/index.html) | [![Enter the Matrix](https://img.shields.io/badge/matrix-develop-brightgreen.svg)](http://www.boost.org/development/tests/develop/developer/mpl.html)
+<!-- boost-ci/tools/makebadges.sh --project mpl --appveyor 49kygihpsvv2sps0 --codecov 31bBblRchG --coverity 15866 -->
+| Branch          | GHA CI | Appveyor | Coverity Scan | codecov.io | Deps | Docs | Tests |
+| :-------------: | ------ | -------- | ------------- | ---------- | ---- | ---- | ----- |
+| [`master`](https://github.com/boostorg/mpl/tree/master) | [![Build Status](https://github.com/boostorg/mpl/actions/workflows/ci.yml/badge.svg?branch=master)](https://github.com/boostorg/mpl/actions?query=branch:master) | [![Build status](https://ci.appveyor.com/api/projects/status/49kygihpsvv2sps0/branch/master?svg=true)](https://ci.appveyor.com/project/cppalliance/mpl/branch/master) | [![Coverity Scan Build Status](https://scan.coverity.com/projects/15866/badge.svg)](https://scan.coverity.com/projects/boostorg-mpl) | [![codecov](https://codecov.io/gh/boostorg/mpl/branch/master/graph/badge.svg?token=31bBblRchG)](https://codecov.io/gh/boostorg/mpl/tree/master) | [![Deps](https://img.shields.io/badge/deps-master-brightgreen.svg)](https://pdimov.github.io/boostdep-report/master/mpl.html) | [![Documentation](https://img.shields.io/badge/docs-master-brightgreen.svg)](https://www.boost.org/doc/libs/master/libs/mpl) | [![Enter the Matrix](https://img.shields.io/badge/matrix-master-brightgreen.svg)](https://www.boost.org/development/tests/master/developer/mpl.html)
+| [`develop`](https://github.com/boostorg/mpl/tree/develop) | [![Build Status](https://github.com/boostorg/mpl/actions/workflows/ci.yml/badge.svg?branch=develop)](https://github.com/boostorg/mpl/actions?query=branch:develop) | [![Build status](https://ci.appveyor.com/api/projects/status/49kygihpsvv2sps0/branch/develop?svg=true)](https://ci.appveyor.com/project/cppalliance/mpl/branch/develop) | [![Coverity Scan Build Status](https://scan.coverity.com/projects/15866/badge.svg)](https://scan.coverity.com/projects/boostorg-mpl) | [![codecov](https://codecov.io/gh/boostorg/mpl/branch/develop/graph/badge.svg?token=31bBblRchG)](https://codecov.io/gh/boostorg/mpl/tree/develop) | [![Deps](https://img.shields.io/badge/deps-develop-brightgreen.svg)](https://pdimov.github.io/boostdep-report/develop/mpl.html) | [![Documentation](https://img.shields.io/badge/docs-develop-brightgreen.svg)](https://www.boost.org/doc/libs/develop/libs/mpl) | [![Enter the Matrix](https://img.shields.io/badge/matrix-develop-brightgreen.svg)](https://www.boost.org/development/tests/develop/developer/mpl.html)
 
 ### Directories
 
@@ -27,8 +28,8 @@ Branch          | GHA CI | Appveyor | Coverity Scan | codecov.io | Deps | Docs |
 
 ### More information
 
-* [Ask questions](http://stackoverflow.com/questions/ask?tags=c%2B%2B,boost,boost-mpl)
+* [Ask questions](https://stackoverflow.com/questions/ask?tags=c%2B%2B,boost,boost-mpl)
 * [Report bugs](https://github.com/boostorg/mpl/issues): Be sure to mention Boost version, platform and compiler you're using. A small compilable code sample to reproduce the problem is always good as well.
-* Submit your patches as pull requests against **develop** branch. Note that by submitting patches you agree to license your modifications under the [Boost Software License, Version 1.0](http://www.boost.org/LICENSE_1_0.txt).
-* Discussions about the library are held on the [Boost developers mailing list](http://www.boost.org/community/groups.html#main). Be sure to read the [discussion policy](http://www.boost.org/community/policy.html) before posting and add the `[mpl]` tag at the beginning of the subject line.
+* Submit your patches as pull requests against **develop** branch. Note that by submitting patches you agree to license your modifications under the [Boost Software License, Version 1.0](https://www.boost.org/LICENSE_1_0.txt).
+* Discussions about the library are held on the [Boost developers mailing list](https://www.boost.org/community/groups.html#main). Be sure to read the [discussion policy](https://www.boost.org/community/policy.html) before posting and add the `[mpl]` tag at the beginning of the subject line.
 

include/boost/mpl/and.hpp

@@ -28,7 +28,7 @@
 // 'or' and 'and' macros, see http://tinyurl.com/3et69; 'defined(and)'
 // has to be checked in a separate condition, otherwise GCC complains 
 // about 'and' being an alternative token
-#if defined(_MSC_VER)
+#if defined(_MSC_VER) && !defined(__cplusplus)
 #ifndef __GCCXML__
 #if defined(and) 
 #   pragma push_macro("and")
@@ -41,7 +41,7 @@
 #   define BOOST_MPL_PREPROCESSED_HEADER and.hpp
 #   include <boost/mpl/aux_/include_preprocessed.hpp>
 
-#if defined(_MSC_VER) && !defined(__clang__)
+#if defined(_MSC_VER) && !defined(__clang__) && !defined(__cplusplus)
 #ifndef __GCCXML__
 #if defined(and) 
 #   pragma pop_macro("and")

include/boost/mpl/aux_/na_assert.hpp

@@ -22,7 +22,7 @@
     && !BOOST_WORKAROUND(__EDG_VERSION__, <= 243)
 #   include <boost/mpl/assert.hpp>
 #   define BOOST_MPL_AUX_ASSERT_NOT_NA(x) \
-    BOOST_MPL_ASSERT_NOT((boost::mpl::is_na<type>)) \
+    BOOST_MPL_ASSERT_NOT((boost::mpl::is_na<x>)) \
 /**/
 #else
 #   include <boost/static_assert.hpp>

include/boost/mpl/bitand.hpp

@@ -19,7 +19,7 @@
 // macros, see http://tinyurl.com/ycwdxco; 'defined(bitand)'
 // has to be checked in a separate condition, otherwise GCC complains 
 // about 'bitand' being an alternative token
-#if defined(_MSC_VER)
+#if defined(_MSC_VER) && !defined(__cplusplus)
 #ifndef __GCCXML__
 #if defined(bitand)
 #   pragma push_macro("bitand")
@@ -34,7 +34,7 @@
 #define AUX778076_OP_TOKEN  &
 #include <boost/mpl/aux_/arithmetic_op.hpp>
 
-#if defined(_MSC_VER) && !defined(__clang__)
+#if defined(_MSC_VER) && !defined(__clang__) && !defined(__cplusplus)
 #ifndef __GCCXML__
 #if defined(bitand)
 #   pragma pop_macro("bitand")

include/boost/mpl/bitor.hpp

@@ -19,7 +19,7 @@
 // macros, see http://tinyurl.com/ycwdxco; 'defined(bitor)'
 // has to be checked in a separate condition, otherwise GCC complains 
 // about 'bitor' being an alternative token
-#if defined(_MSC_VER)
+#if defined(_MSC_VER) && !defined(__cplusplus)
 #ifndef __GCCXML__
 #if defined(bitor)
 #   pragma push_macro("bitor")
@@ -34,7 +34,7 @@
 #define AUX778076_OP_TOKEN  |
 #include <boost/mpl/aux_/arithmetic_op.hpp>
 
-#if defined(_MSC_VER) && !defined(__clang__)
+#if defined(_MSC_VER) && !defined(__clang__) && !defined(__cplusplus)
 #ifndef __GCCXML__
 #if defined(bitor)
 #   pragma pop_macro("bitor")

include/boost/mpl/or.hpp

@@ -29,7 +29,7 @@
 // 'or' and 'and' macros, see http://tinyurl.com/3et69; 'defined(or)'
 // has to be checked in a separate condition, otherwise GCC complains 
 // about 'or' being an alternative token
-#if defined(_MSC_VER)
+#if defined(_MSC_VER)&& !defined(__cplusplus)
 #ifndef __GCCXML__
 #if defined(or)
 #   pragma push_macro("or")
@@ -42,7 +42,7 @@
 #   define BOOST_MPL_PREPROCESSED_HEADER or.hpp
 #   include <boost/mpl/aux_/include_preprocessed.hpp>
 
-#if defined(_MSC_VER) && !defined(__clang__)
+#if defined(_MSC_VER) && !defined(__clang__) && !defined(__cplusplus)
 #ifndef __GCCXML__
 #if defined(or)
 #   pragma pop_macro("or")

test/Jamfile.v2

@@ -62,9 +62,10 @@ compile inherit.cpp ;
 compile insert.cpp ;
 compile insert_range.cpp ;
 run int.cpp ;
-run char.cpp ;
-run integral_c.cpp
-  : : : <toolset>vacpp:<cxxflags>-qchars=signed ;
+run char.cpp : : :                                                                    : char                ;
+run char.cpp : : : <toolset>gcc:<cxxflags>"-funsigned-char -Wnarrowing -Werror"       : char_unsigned       ;
+run integral_c.cpp : : : <toolset>vacpp:<cxxflags>-qchars=signed                      : integral_c          ;
+run integral_c.cpp : : : <toolset>gcc:<cxxflags>"-funsigned-char -Wnarrowing -Werror" : integral_c_unsigned ;
 compile is_placeholder.cpp ;
 compile is_sequence.cpp ;
 compile iterator_tags.cpp ;