Add BOOST_NO_CXX11_EXCECPTION.

Replaces: https://github.com/boostorg/config/pull/285
Fixes https://github.com/boostorg/config/issues/284
See also: https://github.com/boostorg/exception/issues/10

test/all/Jamfile.v2

@@ -1,7 +1,7 @@
 #
 # Regression test Jamfile for boost configuration setup.
 # *** DO NOT EDIT THIS FILE BY HAND ***
-# This file was automatically generated on Sun Apr 21 09:13:03 2019
+# This file was automatically generated on Fri Aug 23 11:11:12 2019
 #  by libs/config/tools/generate.cpp
 # Copyright John Maddock.
 # Use, modification and distribution are subject to the 
@@ -196,6 +196,9 @@ test-suite "BOOST_NO_CXX11_ATOMIC_SMART_PTR" :
 test-suite "BOOST_NO_CXX11_DEFAULTED_MOVES" : 
 [ run ../no_cxx11_defaulted_moves_pass.cpp ]
 [ compile-fail ../no_cxx11_defaulted_moves_fail.cpp ] ;
+test-suite "BOOST_NO_CXX11_HDR_EXCEPTION" : 
+[ run ../no_cxx11_exception_pass.cpp ]
+[ compile-fail ../no_cxx11_exception_fail.cpp ] ;
 test-suite "BOOST_NO_CXX11_FINAL" : 
 [ run ../no_cxx11_final_pass.cpp ]
 [ compile-fail ../no_cxx11_final_fail.cpp ] ;

test/boost_no_cxx11_exception.ipp

@@ -0,0 +1,47 @@
+//  (C) Copyright Beman Dawes 2009
+
+//  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 more information.
+
+//  MACRO:         BOOST_NO_CXX11_HDR_EXCEPTION
+//  TITLE:         C++11 header <exception> not compatible
+//  DESCRIPTION:   The standard library does not provide a C++11 compatible version of <exception>.
+
+#include <exception>
+
+namespace boost_no_cxx11_hdr_exception {
+
+   int test()
+   {
+#ifdef BOOST_NO_EXCEPTIONS
+      using std::exception_ptr;
+      using std::current_exception;
+      using std::rethrow_exception;
+      return 0;
+#else
+      std::exception_ptr ep;
+      try
+      {
+         throw 42;
+      }
+      catch (...)
+      {
+         ep = std::current_exception();
+      }
+      try
+      {
+         std::rethrow_exception(ep);
+      }
+      catch (int i)
+      {
+         // return zero on success
+         return i == 42 ? 0 : 1;
+      }
+      return 1;
+#endif
+   }
+
+}

test/config_info.cpp

@@ -1107,6 +1107,7 @@ void print_boost_macros()
    PRINT_MACRO(BOOST_NO_CXX11_HDR_CHRONO);
    PRINT_MACRO(BOOST_NO_CXX11_HDR_CODECVT);
    PRINT_MACRO(BOOST_NO_CXX11_HDR_CONDITION_VARIABLE);
+   PRINT_MACRO(BOOST_NO_CXX11_HDR_EXCEPTION);
    PRINT_MACRO(BOOST_NO_CXX11_HDR_FORWARD_LIST);
    PRINT_MACRO(BOOST_NO_CXX11_HDR_FUNCTIONAL);
    PRINT_MACRO(BOOST_NO_CXX11_HDR_FUTURE);
@@ -1231,6 +1232,7 @@ void print_boost_macros()
    PRINT_MACRO(BOOST_NO_USING_TEMPLATE);
    PRINT_MACRO(BOOST_NO_VOID_RETURNS);
 
+
    // END GENERATED BLOCK
 
    PRINT_MACRO(BOOST_INTEL);

test/config_test.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Sun Apr 21 09:13:03 2019
+//  This file was automatically generated on Fri Aug 23 11:11:12 2019
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-4.
 //  Use, modification and distribution are subject to the 
@@ -127,6 +127,11 @@ namespace boost_no_cxx11_atomic_smart_ptr = empty_boost;
 #else
 namespace boost_no_cxx11_defaulted_moves = empty_boost;
 #endif
+#ifndef BOOST_NO_CXX11_HDR_EXCEPTION
+#include "boost_no_cxx11_exception.ipp"
+#else
+namespace boost_no_cxx11_hdr_exception = empty_boost;
+#endif
 #ifndef BOOST_NO_CXX11_FINAL
 #include "boost_no_cxx11_final.ipp"
 #else
@@ -1301,6 +1306,11 @@ int main( int, char *[] )
       std::cerr << "Failed test for BOOST_NO_CXX11_DEFAULTED_MOVES at: " << __FILE__ << ":" << __LINE__ << std::endl;
       ++error_count;
    }
+   if(0 != boost_no_cxx11_hdr_exception::test())
+   {
+      std::cerr << "Failed test for BOOST_NO_CXX11_HDR_EXCEPTION at: " << __FILE__ << ":" << __LINE__ << std::endl;
+      ++error_count;
+   }
    if(0 != boost_no_cxx11_final::test())
    {
       std::cerr << "Failed test for BOOST_NO_CXX11_FINAL at: " << __FILE__ << ":" << __LINE__ << std::endl;

test/no_cxx11_exception_fail.cpp

@@ -0,0 +1,37 @@
+//  This file was automatically generated on Fri Aug 23 11:11:12 2019
+//  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_HDR_EXCEPTION
+// This file should not compile, if it does then
+// BOOST_NO_CXX11_HDR_EXCEPTION should not be defined.
+// See file boost_no_cxx11_exception.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_HDR_EXCEPTION
+#include "boost_no_cxx11_exception.ipp"
+#else
+#error "this file should not compile"
+#endif
+
+int main( int, char *[] )
+{
+   return boost_no_cxx11_hdr_exception::test();
+}
+

test/no_cxx11_exception_pass.cpp

@@ -0,0 +1,37 @@
+//  This file was automatically generated on Fri Aug 23 11:11:12 2019
+//  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_HDR_EXCEPTION
+// This file should compile, if it does not then
+// BOOST_NO_CXX11_HDR_EXCEPTION should be defined.
+// See file boost_no_cxx11_exception.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_HDR_EXCEPTION
+#include "boost_no_cxx11_exception.ipp"
+#else
+namespace boost_no_cxx11_hdr_exception = empty_boost;
+#endif
+
+int main( int, char *[] )
+{
+   return boost_no_cxx11_hdr_exception::test();
+}
+