Add BOOST_NO_CXX17_DEDUCTION_GUIDES.

Replaces https://github.com/boostorg/config/pull/414.

checks/Jamfile.v2

@@ -1,6 +1,6 @@
 #
 # *** DO NOT EDIT THIS FILE BY HAND ***
-# This file was automatically generated on Thu Feb  3 18:10:41 2022
+# This file was automatically generated on Sun Jun  5 16:50:18 2022
 #  by libs/config/tools/generate.cpp
 # Copyright John Maddock.
 # Use, modification and distribution are subject to the 
@@ -118,6 +118,7 @@ obj cxx14_return_type_deduction : test_case.cpp : <define>TEST_BOOST_NO_CXX14_RE
 obj cxx14_std_exchange : test_case.cpp : <define>TEST_BOOST_NO_CXX14_STD_EXCHANGE ;
 obj cxx14_variable_templates : test_case.cpp : <define>TEST_BOOST_NO_CXX14_VARIABLE_TEMPLATES ;
 obj cxx17 : test_case.cpp : <define>TEST_BOOST_NO_CXX17 ;
+obj cxx17_deduction_guides : test_case.cpp : <define>TEST_BOOST_NO_CXX17_DEDUCTION_GUIDES ;
 obj cxx17_fold_expressions : test_case.cpp : <define>TEST_BOOST_NO_CXX17_FOLD_EXPRESSIONS ;
 obj cxx17_hdr_any : test_case.cpp : <define>TEST_BOOST_NO_CXX17_HDR_ANY ;
 obj cxx17_hdr_charconv : test_case.cpp : <define>TEST_BOOST_NO_CXX17_HDR_CHARCONV ;

checks/test_case.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Sun Jun  5 16:50:18 2022
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 
@@ -546,6 +546,11 @@
 #     error "Defect macro BOOST_NO_CXX17 is defined."
 #  endif
 #endif
+#ifdef TEST_BOOST_NO_CXX17_DEDUCTION_GUIDES
+#  ifdef BOOST_NO_CXX17_DEDUCTION_GUIDES
+#     error "Defect macro BOOST_NO_CXX17_DEDUCTION_GUIDES is defined."
+#  endif
+#endif
 #ifdef TEST_BOOST_NO_CXX17_FOLD_EXPRESSIONS
 #  ifdef BOOST_NO_CXX17_FOLD_EXPRESSIONS
 #     error "Defect macro BOOST_NO_CXX17_FOLD_EXPRESSIONS is defined."

doc/macro_reference.qbk

@@ -1041,6 +1041,7 @@ that are not yet supported by a particular compiler or library.
 [[`BOOST_NO_CXX17_ITERATOR_TRAITS`][The compiler does not support SFINAE-friendly `std::iterator_traits`.]]
 [[`BOOST_NO_CXX17_IF_CONSTEXPR`][The compiler does not support `if constexpr`.]]
 [[`BOOST_NO_CXX17_INLINE_VARIABLES`][The compiler does not support `inline` variables.]]
+[[`BOOST_NO_CXX17_DEDUCTION_GUIDES`][The compiler does not class template argument deduction (CTAD) guides.]]
 ]
 
 [endsect]

include/boost/config/assert_cxx03.hpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Sun Jun  5 16:50:18 2022
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

include/boost/config/assert_cxx11.hpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Sun Jun  5 16:50:18 2022
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

include/boost/config/assert_cxx14.hpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Sun Jun  5 16:50:18 2022
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

include/boost/config/assert_cxx17.hpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Sun Jun  5 16:50:18 2022
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 
@@ -12,6 +12,9 @@
 #include <boost/config.hpp>
 #include <boost/config/assert_cxx14.hpp>
 
+#ifdef BOOST_NO_CXX17_DEDUCTION_GUIDES
+#  error "Your compiler appears not to be fully C++17 compliant.  Detected via defect macro BOOST_NO_CXX17_DEDUCTION_GUIDES."
+#endif
 #ifdef BOOST_NO_CXX17_FOLD_EXPRESSIONS
 #  error "Your compiler appears not to be fully C++17 compliant.  Detected via defect macro BOOST_NO_CXX17_FOLD_EXPRESSIONS."
 #endif

include/boost/config/assert_cxx20.hpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Sun Jun  5 16:50:18 2022
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

include/boost/config/detail/cxx_composite.hpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Sun Jun  5 16:50:18 2022
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 
@@ -163,6 +163,7 @@
 #endif
 
 #if defined(BOOST_NO_CXX14)\
+   || defined(BOOST_NO_CXX17_DEDUCTION_GUIDES)\
    || defined(BOOST_NO_CXX17_FOLD_EXPRESSIONS)\
    || defined(BOOST_NO_CXX17_HDR_ANY)\
    || defined(BOOST_NO_CXX17_HDR_CHARCONV)\

include/boost/config/detail/suffix.hpp

@@ -1219,6 +1219,10 @@ namespace std{ using ::type_info; }
 #  define BOOST_NO_CXX20_HDR_VERSION
 #endif
 
+#if !defined(__cpp_deduction_guides) || (__cpp_deduction_guides < 201606)
+#  define BOOST_NO_CXX17_DEDUCTION_GUIDES
+#endif
+
 //
 // Define composite agregate macros:
 //

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 Thu Feb  3 18:10:41 2022
+# This file was automatically generated on Sun Jun  5 16:50:18 2022
 #  by libs/config/tools/generate.cpp
 # Copyright John Maddock.
 # Use, modification and distribution are subject to the 
@@ -343,6 +343,9 @@ test-suite "BOOST_NO_CXX14_VARIABLE_TEMPLATES" :
 test-suite "BOOST_NO_CXX17" : 
 [ run ../no_cxx17_pass.cpp ]
 [ compile-fail ../no_cxx17_fail.cpp ] ;
+test-suite "BOOST_NO_CXX17_DEDUCTION_GUIDES" : 
+[ run ../no_cxx17_deduction_guides_pass.cpp ]
+[ compile-fail ../no_cxx17_deduction_guides_fail.cpp ] ;
 test-suite "BOOST_NO_CXX17_FOLD_EXPRESSIONS" : 
 [ run ../no_cxx17_fold_expressions_pass.cpp ]
 [ compile-fail ../no_cxx17_fold_expressions_fail.cpp ] ;

test/boost_no_cxx17_deduction_guides.ipp

@@ -0,0 +1,34 @@
+/*
+ * Copyright 2022 Andrey Semashev
+ *
+ * Distributed under Boost Software License, Version 1.0.
+ * (See accompanying file LICENSE_1_0.txt or copy at
+ * http://www.boost.org/LICENSE_1_0.txt)
+ */
+
+ // MACRO: BOOST_NO_CXX17_DEDUCTION_GUIDES
+ // TITLE: C++17 class template argument deduction guides
+ // DESCRIPTION: C++17 class template argument deduction guides are not supported.
+
+namespace boost_no_cxx17_deduction_guides {
+
+   template< typename T >
+   struct foo
+   {
+      T m_val;
+
+      template< typename U >
+      foo(U const& x) : m_val(x) {}
+   };
+
+   template< typename T >
+   foo(T const&)->foo< T >;
+
+
+   int test()
+   {
+      foo x1(10);
+      return x1.m_val - 10;
+   }
+
+} // boost_no_cxx17_deduction_guides

test/config_info.cpp

@@ -1167,6 +1167,7 @@ void print_boost_macros()
    PRINT_MACRO(BOOST_NO_CXX14_STD_EXCHANGE);
    PRINT_MACRO(BOOST_NO_CXX14_VARIABLE_TEMPLATES);
    PRINT_MACRO(BOOST_NO_CXX17);
+   PRINT_MACRO(BOOST_NO_CXX17_DEDUCTION_GUIDES);
    PRINT_MACRO(BOOST_NO_CXX17_FOLD_EXPRESSIONS);
    PRINT_MACRO(BOOST_NO_CXX17_HDR_ANY);
    PRINT_MACRO(BOOST_NO_CXX17_HDR_CHARCONV);
@@ -1266,6 +1267,7 @@ void print_boost_macros()
 
 
 
+
    // END GENERATED BLOCK
 
    PRINT_MACRO(BOOST_CXX_VERSION);

test/config_test.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Sun Jun  5 16:50:18 2022
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 
@@ -372,6 +372,11 @@ namespace boost_no_cxx14_variable_templates = empty_boost;
 #else
 namespace boost_no_cxx17 = empty_boost;
 #endif
+#ifndef BOOST_NO_CXX17_DEDUCTION_GUIDES
+#include "boost_no_cxx17_deduction_guides.ipp"
+#else
+namespace boost_no_cxx17_deduction_guides = empty_boost;
+#endif
 #ifndef BOOST_NO_CXX17_FOLD_EXPRESSIONS
 #include "boost_no_cxx17_fold_expressions.ipp"
 #else
@@ -1681,6 +1686,11 @@ int main( int, char *[] )
       std::cerr << "Failed test for BOOST_NO_CXX17 at: " << __FILE__ << ":" << __LINE__ << std::endl;
       ++error_count;
    }
+   if(0 != boost_no_cxx17_deduction_guides::test())
+   {
+      std::cerr << "Failed test for BOOST_NO_CXX17_DEDUCTION_GUIDES at: " << __FILE__ << ":" << __LINE__ << std::endl;
+      ++error_count;
+   }
    if(0 != boost_no_cxx17_fold_expressions::test())
    {
       std::cerr << "Failed test for BOOST_NO_CXX17_FOLD_EXPRESSIONS at: " << __FILE__ << ":" << __LINE__ << std::endl;

test/no_cxx17_deduction_guides_fail.cpp

@@ -0,0 +1,37 @@
+//  This file was automatically generated on Sun Jun  5 16:50:17 2022
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-21.
+//  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_CXX17_DEDUCTION_GUIDES
+// This file should not compile, if it does then
+// BOOST_NO_CXX17_DEDUCTION_GUIDES should not be defined.
+// See file boost_no_cxx17_deduction_guides.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_CXX17_DEDUCTION_GUIDES
+#include "boost_no_cxx17_deduction_guides.ipp"
+#else
+#error "this file should not compile"
+#endif
+
+int main( int, char *[] )
+{
+   return boost_no_cxx17_deduction_guides::test();
+}
+

test/no_cxx17_deduction_guides_pass.cpp

@@ -0,0 +1,37 @@
+//  This file was automatically generated on Sun Jun  5 16:50:17 2022
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-21.
+//  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_CXX17_DEDUCTION_GUIDES
+// This file should compile, if it does not then
+// BOOST_NO_CXX17_DEDUCTION_GUIDES should be defined.
+// See file boost_no_cxx17_deduction_guides.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_CXX17_DEDUCTION_GUIDES
+#include "boost_no_cxx17_deduction_guides.ipp"
+#else
+namespace boost_no_cxx17_deduction_guides = empty_boost;
+#endif
+
+int main( int, char *[] )
+{
+   return boost_no_cxx17_deduction_guides::test();
+}
+