Merge branch 'develop'

Fixed Conflicts:
	checks/Jamfile.v2
	checks/std/cpp_aggregate_bases_17.cpp
	checks/std/cpp_aggregate_nsdmi_14.cpp
	checks/std/cpp_alias_templates_11.cpp
	checks/std/cpp_aligned_new_17.cpp
	checks/std/cpp_attributes_11.cpp
	checks/std/cpp_binary_literals_14.cpp
	checks/std/cpp_capture_star_this_17.cpp
	checks/std/cpp_char8_t_20.cpp
	checks/std/cpp_conditional_explicit_20.cpp
	checks/std/cpp_constexpr_11.cpp
	checks/std/cpp_constexpr_14.cpp
	checks/std/cpp_constexpr_17.cpp
	checks/std/cpp_decltype_11.cpp
	checks/std/cpp_decltype_auto_14.cpp
	checks/std/cpp_deduction_guides_17.cpp
	checks/std/cpp_delegating_constructors_11.cpp
	checks/std/cpp_enumerator_attributes_17.cpp
	checks/std/cpp_exceptions_03.cpp
	checks/std/cpp_explicit_conversion_11.cpp
	checks/std/cpp_fold_expressions_17.cpp
	checks/std/cpp_generic_lambdas_14.cpp
	checks/std/cpp_guaranteed_copy_elision_17.cpp
	checks/std/cpp_hex_float_17.cpp
	checks/std/cpp_if_constexpr_17.cpp
	checks/std/cpp_impl_destroying_delete_20.cpp
	checks/std/cpp_impl_three_way_comparison_20.cpp
	checks/std/cpp_inheriting_constructors_11.cpp
	checks/std/cpp_inheriting_constructors_17.cpp
	checks/std/cpp_init_captures_14.cpp
	checks/std/cpp_initializer_lists_11.cpp
	checks/std/cpp_inline_variables_17.cpp
	checks/std/cpp_lambdas_11.cpp
	checks/std/cpp_lib_addressof_constexpr_17.cpp
	checks/std/cpp_lib_allocator_traits_is_always_equal_17.cpp
	checks/std/cpp_lib_any_17.cpp
	checks/std/cpp_lib_apply_17.cpp
	checks/std/cpp_lib_array_constexpr_17.cpp
	checks/std/cpp_lib_as_const_17.cpp
	checks/std/cpp_lib_atomic_is_always_lock_free_17.cpp
	checks/std/cpp_lib_atomic_ref_20.cpp
	checks/std/cpp_lib_bind_front_20.cpp
	checks/std/cpp_lib_bit_cast_20.cpp
	checks/std/cpp_lib_bool_constant_17.cpp
	checks/std/cpp_lib_boyer_moore_searcher_17.cpp
	checks/std/cpp_lib_byte_17.cpp
	checks/std/cpp_lib_char8_t_20.cpp
	checks/std/cpp_lib_chrono_17.cpp
	checks/std/cpp_lib_chrono_udls_14.cpp
	checks/std/cpp_lib_clamp_17.cpp
	checks/std/cpp_lib_complex_udls_14.cpp
	checks/std/cpp_lib_concepts_20.cpp
	checks/std/cpp_lib_constexpr_misc_20.cpp
	checks/std/cpp_lib_constexpr_swap_algorithms_20.cpp
	checks/std/cpp_lib_destroying_delete_20.cpp
	checks/std/cpp_lib_enable_shared_from_this_17.cpp
	checks/std/cpp_lib_erase_if_20.cpp
	checks/std/cpp_lib_exchange_function_14.cpp
	checks/std/cpp_lib_execution_17.cpp
	checks/std/cpp_lib_filesystem_17.cpp
	checks/std/cpp_lib_gcd_lcm_17.cpp
	checks/std/cpp_lib_generic_associative_lookup_14.cpp
	checks/std/cpp_lib_generic_unordered_lookup_20.cpp
	checks/std/cpp_lib_hardware_interference_size_17.cpp
	checks/std/cpp_lib_has_unique_object_representations_17.cpp
	checks/std/cpp_lib_hypot_17.cpp
	checks/std/cpp_lib_incomplete_container_elements_17.cpp
	checks/std/cpp_lib_integer_sequence_14.cpp
	checks/std/cpp_lib_integral_constant_callable_14.cpp
	checks/std/cpp_lib_invoke_17.cpp
	checks/std/cpp_lib_is_aggregate_17.cpp
	checks/std/cpp_lib_is_constant_evaluated_20.cpp
	checks/std/cpp_lib_is_final_14.cpp
	checks/std/cpp_lib_is_invocable_17.cpp
	checks/std/cpp_lib_is_null_pointer_14.cpp
	checks/std/cpp_lib_is_swappable_17.cpp
	checks/std/cpp_lib_launder_17.cpp
	checks/std/cpp_lib_list_remove_return_type_20.cpp
	checks/std/cpp_lib_logical_traits_17.cpp
	checks/std/cpp_lib_make_from_tuple_17.cpp
	checks/std/cpp_lib_make_reverse_iterator_14.cpp
	checks/std/cpp_lib_make_unique_14.cpp
	checks/std/cpp_lib_map_try_emplace_17.cpp
	checks/std/cpp_lib_math_special_functions_17.cpp
	checks/std/cpp_lib_memory_resource_17.cpp
	checks/std/cpp_lib_node_extract_17.cpp
	checks/std/cpp_lib_nonmember_container_access_17.cpp
	checks/std/cpp_lib_not_fn_17.cpp
	checks/std/cpp_lib_null_iterators_14.cpp
	checks/std/cpp_lib_optional_17.cpp
	checks/std/cpp_lib_parallel_algorithm_17.cpp
	checks/std/cpp_lib_quoted_string_io_14.cpp
	checks/std/cpp_lib_ranges_20.cpp
	checks/std/cpp_lib_raw_memory_algorithms_17.cpp
	checks/std/cpp_lib_result_of_sfinae_14.cpp
	checks/std/cpp_lib_robust_nonmodifying_seq_ops_14.cpp
	checks/std/cpp_lib_sample_17.cpp
	checks/std/cpp_lib_scoped_lock_17.cpp
	checks/std/cpp_lib_shared_mutex_17.cpp
	checks/std/cpp_lib_shared_ptr_arrays_17.cpp
	checks/std/cpp_lib_shared_ptr_weak_type_17.cpp
	checks/std/cpp_lib_shared_timed_mutex_14.cpp
	checks/std/cpp_lib_string_udls_14.cpp
	checks/std/cpp_lib_string_view_17.cpp
	checks/std/cpp_lib_three_way_comparison_20.cpp
	checks/std/cpp_lib_to_chars_17.cpp
	checks/std/cpp_lib_transformation_trait_aliases_14.cpp
	checks/std/cpp_lib_transparent_operators_14.cpp
	checks/std/cpp_lib_transparent_operators_17.cpp
	checks/std/cpp_lib_tuple_element_t_14.cpp
	checks/std/cpp_lib_tuples_by_type_14.cpp
	checks/std/cpp_lib_type_trait_variable_templates_17.cpp
	checks/std/cpp_lib_uncaught_exceptions_17.cpp
	checks/std/cpp_lib_unordered_map_try_emplace_17.cpp
	checks/std/cpp_lib_variant_17.cpp
	checks/std/cpp_lib_void_t_17.cpp
	checks/std/cpp_namespace_attributes_17.cpp
	checks/std/cpp_noexcept_function_type_17.cpp
	checks/std/cpp_nontype_template_args_17.cpp
	checks/std/cpp_nontype_template_parameter_auto_17.cpp
	checks/std/cpp_nontype_template_parameter_class_20.cpp
	checks/std/cpp_nsdmi_11.cpp
	checks/std/cpp_range_based_for_11.cpp
	checks/std/cpp_range_based_for_17.cpp
	checks/std/cpp_raw_strings_11.cpp
	checks/std/cpp_ref_qualifiers_11.cpp
	checks/std/cpp_return_type_deduction_14.cpp
	checks/std/cpp_rtti_03.cpp
	checks/std/cpp_rvalue_references_11.cpp
	checks/std/cpp_sized_deallocation_14.cpp
	checks/std/cpp_static_assert_11.cpp
	checks/std/cpp_static_assert_17.cpp
	checks/std/cpp_structured_bindings_17.cpp
	checks/std/cpp_template_template_args_17.cpp
	checks/std/cpp_threadsafe_static_init_11.cpp
	checks/std/cpp_unicode_characters_11.cpp
	checks/std/cpp_unicode_literals_11.cpp
	checks/std/cpp_user_defined_literals_11.cpp
	checks/std/cpp_variable_templates_14.cpp
	checks/std/cpp_variadic_templates_11.cpp
	checks/std/cpp_variadic_using_17.cpp
	checks/test_case.cpp
	doc/html/index.html
	include/boost/config/assert_cxx03.hpp
	include/boost/config/assert_cxx11.hpp
	include/boost/config/assert_cxx14.hpp
	include/boost/config/assert_cxx17.hpp
	include/boost/config/detail/cxx_composite.hpp
	test/all/Jamfile.v2
	test/config_info.cpp
	test/config_test.cpp
	tools/generate.cpp

include/boost/config/assert_cxx98.hpp

@@ -0,0 +1,23 @@
+//  This file was automatically generated on Wed Mar  3 08:46:11 2021
+//  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 $Id$
+//
+
+#include <boost/config.hpp>
+#include <boost/config/assert_cxx17.hpp>
+
+#ifdef BOOST_NO_CXX98_BINDERS
+#  error "Your compiler appears not to be fully C++98 compliant.  Detected via defect macro BOOST_NO_CXX98_BINDERS."
+#endif
+#ifdef BOOST_NO_CXX98_FUNCTION_BASE
+#  error "Your compiler appears not to be fully C++98 compliant.  Detected via defect macro BOOST_NO_CXX98_FUNCTION_BASE."
+#endif
+#ifdef BOOST_NO_CXX98_RANDOM_SHUFFLE
+#  error "Your compiler appears not to be fully C++98 compliant.  Detected via defect macro BOOST_NO_CXX98_RANDOM_SHUFFLE."
+#endif

include/boost/config/detail/suffix.hpp

@@ -1210,6 +1210,18 @@ namespace std{ using ::type_info; }
 #  define BOOST_CXX_VERSION __cplusplus
 #endif
 
+//
+// Define composite agregate macros:
+//
+#include <boost/config/detail/cxx_composite.hpp>
+
+//
+// Define the std level that the compiler claims to support:
+//
+#ifndef BOOST_CXX_VERSION
+#  define BOOST_CXX_VERSION __cplusplus
+#endif
+
 //
 // Finish off with checks for macros that are depricated / no longer supported,
 // if any of these are set then it's very likely that much of Boost will no

include/boost/config/stdlib/libstdcpp3.hpp

@@ -184,6 +184,16 @@
 #endif
 
 
+#if (BOOST_LIBSTDCXX_VERSION >= 100000) && defined(BOOST_HAS_HASH)
+//
+// hash_set/hash_map deprecated and have terminal bugs:
+//
+#undef BOOST_HAS_HASH
+#undef BOOST_HAS_SET_HEADER
+#undef BOOST_HAS_MAP_HEADER
+#endif
+
+
 #if (BOOST_LIBSTDCXX_VERSION < 50100)
 // libstdc++ does not define this function as it's deprecated in C++11, but clang still looks for it,
 // defining it here is a terrible cludge, but should get things working:

include/boost/version.hpp

@@ -19,7 +19,7 @@
 //  BOOST_VERSION / 100 % 1000 is the minor version
 //  BOOST_VERSION / 100000 is the major version
 
-#define BOOST_VERSION 107900
+#define BOOST_VERSION 107800
 
 //
 //  BOOST_LIB_VERSION must be defined to be the same as BOOST_VERSION
@@ -27,6 +27,6 @@
 //  number, y is the minor version number, and z is the patch level if not 0.
 //  This is used by <config/auto_link.hpp> to select which library version to link to.
 
-#define BOOST_LIB_VERSION "1_79"
+#define BOOST_LIB_VERSION "1_78"
 
 #endif