Add new macro BOOST_NO_CXX11_NON_PUBLIC_DEFAULTED_FUNCTIONS

doc/macro_reference.qbk

@@ -640,6 +640,9 @@ accepted in Madrid, March 2011.
 [[`BOOST_NO_CXX11_DEFAULTED_FUNCTIONS`][The compiler does not support
 defaulted (`= default`) functions.
 ]]
+[[BOOST_NO_CXX11_FIXED_LENGTH_VARIADIC_TEMPLATE_EXPANSION_PACKS][The compiler does not support
+expanding a variadic template parameter pack into a template containing one or more
+fixed arguments]]
 [[`BOOST_NO_CXX11_NON_PUBLIC_DEFAULTED_FUNCTIONS`][The compiler does not support
 defaulted (`= default`) functions in access control sections other than `public`. Public defaulted
 functions may still be supported, as indicated by `BOOST_NO_CXX11_DEFAULTED_FUNCTIONS`. Some

include/boost/config/compiler/gcc.hpp

@@ -214,6 +214,7 @@
 #  define BOOST_NO_CXX11_FINAL
 #  define BOOST_NO_CXX11_TEMPLATE_ALIASES
 #  define BOOST_NO_CXX11_USER_DEFINED_LITERALS
+#  define BOOST_NO_CXX11_FIXED_LENGTH_VARIADIC_TEMPLATE_EXPANSION_PACKS
 #endif
 
 // C++0x features in 4.8.n and later

include/boost/config/suffix.hpp

@@ -962,6 +962,13 @@ namespace std{ using ::type_info; }
 #if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) && !defined(BOOST_HAS_VARIADIC_TMPL)
 #define BOOST_HAS_VARIADIC_TMPL
 #endif
+//
+// Set BOOST_NO_CXX11_FIXED_LENGTH_VARIADIC_TEMPLATE_EXPANSION_PACKS when
+// BOOST_NO_CXX11_VARIADIC_TEMPLATES is set:
+//
+#if defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) && !defined(BOOST_NO_CXX11_FIXED_LENGTH_VARIADIC_TEMPLATE_EXPANSION_PACKS)
+#  define BOOST_NO_CXX11_FIXED_LENGTH_VARIADIC_TEMPLATE_EXPANSION_PACKS
+#endif
 
 //
 // Finish off with checks for macros that are depricated / no longer supported,

test/boost_no_fixed_len_variadic_templates.ipp

@@ -0,0 +1,25 @@
+//  Copyright (C) 2007 Douglas Gregor
+//  Use, modification and distribution are subject to 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)
+
+//  See http://www.boost.org/libs/config for most recent version.
+
+//  MACRO:         BOOST_NO_CXX11_FIXED_LENGTH_VARIADIC_TEMPLATE_EXPANSION_PACKS
+//  TITLE:         C++0x variadic templates unavailable
+//  DESCRIPTION:   The compiler does not support C++0x variadic templates
+
+namespace boost_no_cxx11_fixed_length_variadic_template_expansion_packs {
+
+template<char one, char two, char... Others> struct char_tuple {};
+
+template<char... Args> struct super_class : public char_tuple<Args...> {};
+
+int test()
+{
+   super_class<'a', 'b', 'c', 'd'> sc;
+   (void)sc;
+   return 0;
+}
+
+}

test/config_info.cpp

@@ -1011,6 +1011,7 @@ void print_boost_macros()
    PRINT_MACRO(BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS);
    PRINT_MACRO(BOOST_NO_CXX11_EXTERN_TEMPLATE);
    PRINT_MACRO(BOOST_NO_CXX11_FINAL);
+   PRINT_MACRO(BOOST_NO_CXX11_FIXED_LENGTH_VARIADIC_TEMPLATE_EXPANSION_PACKS);
    PRINT_MACRO(BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS);
    PRINT_MACRO(BOOST_NO_CXX11_HDR_ARRAY);
    PRINT_MACRO(BOOST_NO_CXX11_HDR_ATOMIC);
@@ -1134,6 +1135,7 @@ void print_boost_macros()
 
 
 
+
 
 
    // END GENERATED BLOCK

test/no_fixed_len_variadic_templates_fail.cpp

@@ -0,0 +1,37 @@
+//  This file was automatically generated on Mon Aug 25 18:12:27 2014
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to 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)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+
+// Test file for macro BOOST_NO_CXX11_FIXED_LENGTH_VARIADIC_TEMPLATE_EXPANSION_PACKS
+// This file should not compile, if it does then
+// BOOST_NO_CXX11_FIXED_LENGTH_VARIADIC_TEMPLATE_EXPANSION_PACKS should not be defined.
+// See file boost_no_fixed_len_variadic_templates.ipp for details
+
+// Must not have BOOST_ASSERT_CONFIG set; it defeats
+// the objective of this file:
+#ifdef BOOST_ASSERT_CONFIG
+#  undef BOOST_ASSERT_CONFIG
+#endif
+
+#include <boost/config.hpp>
+#include "test.hpp"
+
+#ifdef BOOST_NO_CXX11_FIXED_LENGTH_VARIADIC_TEMPLATE_EXPANSION_PACKS
+#include "boost_no_fixed_len_variadic_templates.ipp"
+#else
+#error "this file should not compile"
+#endif
+
+int main( int, char *[] )
+{
+   return boost_no_cxx11_fixed_length_variadic_template_expansion_packs::test();
+}
+

test/no_fixed_len_variadic_templates_pass.cpp

@@ -0,0 +1,37 @@
+//  This file was automatically generated on Mon Aug 25 18:12:27 2014
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-4.
+//  Use, modification and distribution are subject to 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)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+
+// Test file for macro BOOST_NO_CXX11_FIXED_LENGTH_VARIADIC_TEMPLATE_EXPANSION_PACKS
+// This file should compile, if it does not then
+// BOOST_NO_CXX11_FIXED_LENGTH_VARIADIC_TEMPLATE_EXPANSION_PACKS should be defined.
+// See file boost_no_fixed_len_variadic_templates.ipp for details
+
+// Must not have BOOST_ASSERT_CONFIG set; it defeats
+// the objective of this file:
+#ifdef BOOST_ASSERT_CONFIG
+#  undef BOOST_ASSERT_CONFIG
+#endif
+
+#include <boost/config.hpp>
+#include "test.hpp"
+
+#ifndef BOOST_NO_CXX11_FIXED_LENGTH_VARIADIC_TEMPLATE_EXPANSION_PACKS
+#include "boost_no_fixed_len_variadic_templates.ipp"
+#else
+namespace boost_no_cxx11_fixed_length_variadic_template_expansion_packs = empty_boost;
+#endif
+
+int main( int, char *[] )
+{
+   return boost_no_cxx11_fixed_length_variadic_template_expansion_packs::test();
+}
+