Features: Record for MSVC C++ 2015 and MSVC C 2010-2015.

Initializer lists are only properly supported in 2015 and above.
Previous Visual Studio releases said they supported initializer lists
but silently produced bad code.

Modules/Compiler/MSVC-C-FeatureTests.cmake

@@ -0,0 +1,23 @@
+
+# Reference: http://msdn.microsoft.com/en-us/library/vstudio/hh567368.aspx
+# http://blogs.msdn.com/b/vcblog/archive/2013/06/28/c-11-14-stl-features-fixes-and-breaking-changes-in-vs-2013.aspx
+# http://blogs.msdn.com/b/vcblog/archive/2014/11/17/c-11-14-17-features-in-vs-2015-preview.aspx
+# http://www.visualstudio.com/en-us/news/vs2015-preview-vs.aspx
+
+set(_cmake_oldestSupported "_MSC_VER >= 1300")
+
+set(MSVC_2010 "_MSC_VER >= 1600")
+set(_cmake_feature_test_c_static_assert "${MSVC_2010}")
+set(_cmake_feature_test_c_variadic_macros "${MSVC_2010}")
+
+set(MSVC_2003 "_MSC_VER >= 1300")
+set(_cmake_feature_test_c_function_prototypes "${MSVC_2003}")
+
+# Currently unsupported:
+# restrict requires the __restrict syntax in msvc
+# set(_cmake_feature_test_c_restrict)
+
+# Unset all the variables that we don't need exposed.
+# _cmake_oldestSupported is required by WriteCompilerDetectionHeader
+set(MSVC_2010)
+set(MSVC_2003)

Modules/Compiler/MSVC-CXX-FeatureTests.cmake

@@ -1,8 +1,35 @@
 
 # Reference: http://msdn.microsoft.com/en-us/library/vstudio/hh567368.aspx
 # http://blogs.msdn.com/b/vcblog/archive/2013/06/28/c-11-14-stl-features-fixes-and-breaking-changes-in-vs-2013.aspx
+# http://blogs.msdn.com/b/vcblog/archive/2014/11/17/c-11-14-17-features-in-vs-2015-preview.aspx
+# http://www.visualstudio.com/en-us/news/vs2015-preview-vs.aspx
 
-set(_oldestSupported "_MSC_VER >= 1600")
+
+set(_cmake_oldestSupported "_MSC_VER >= 1600")
+
+set(MSVC_2015 "_MSC_VER >= 1900")
+set(_cmake_feature_test_cxx_alignas "${MSVC_2015}")
+set(_cmake_feature_test_cxx_alignof "${MSVC_2015}")
+set(_cmake_feature_test_cxx_binary_literals "${MSVC_2015}")
+set(_cmake_feature_test_cxx_decltype_auto "${MSVC_2015}")
+set(_cmake_feature_test_cxx_digit_separators "${MSVC_2015}")
+set(_cmake_feature_test_cxx_func_identifier "${MSVC_2015}")
+# http://blogs.msdn.com/b/vcblog/archive/2014/11/17/c-11-14-17-features-in-vs-2015-preview.aspx
+# Note 1. While previous version of VisualStudio said they supported this
+# they silently produced bad code, and are now marked as having partial
+# support
+set(_cmake_feature_test_cxx_generalized_initializers "${MSVC_2015}")
+set(_cmake_feature_test_cxx_generic_lambdas "${MSVC_2015}")
+set(_cmake_feature_test_cxx_inheriting_constructors "${MSVC_2015}")
+set(_cmake_feature_test_cxx_inline_namespaces "${MSVC_2015}")
+set(_cmake_feature_test_cxx_lambda_init_captures "${MSVC_2015}")
+set(_cmake_feature_test_cxx_noexcept "${MSVC_2015}")
+set(_cmake_feature_test_cxx_return_type_deduction "${MSVC_2015}")
+set(_cmake_feature_test_cxx_sizeof_member "${MSVC_2015}")
+set(_cmake_feature_test_cxx_thread_local "${MSVC_2015}")
+set(_cmake_feature_test_cxx_unicode_literals "${MSVC_2015}")
+set(_cmake_feature_test_cxx_unrestricted_unions "${MSVC_2015}")
+set(_cmake_feature_test_cxx_user_literals "${MSVC_2015}")
 
 set(MSVC_2013 "_MSC_VER >= 1800")
 set(_cmake_feature_test_cxx_alias_templates "${MSVC_2013}")
@@ -11,14 +38,16 @@ set(_cmake_feature_test_cxx_defaulted_functions "${MSVC_2013}")
 set(_cmake_feature_test_cxx_delegating_constructors "${MSVC_2013}")
 set(_cmake_feature_test_cxx_deleted_functions "${MSVC_2013}")
 set(_cmake_feature_test_cxx_explicit_conversions "${MSVC_2013}")
-# http://thread.gmane.org/gmane.comp.lib.boost.devel/245202/focus=245221
-set(_cmake_feature_test_cxx_generalized_initializers "${MSVC_2013}")
 set(_cmake_feature_test_cxx_nonstatic_member_init "${MSVC_2013}")
 set(_cmake_feature_test_cxx_raw_string_literals "${MSVC_2013}")
 set(_cmake_feature_test_cxx_uniform_initialization "${MSVC_2013}")
 # Possibly broken:
 # http://thread.gmane.org/gmane.comp.lib.boost.devel/244986/focus=245333
 set(_cmake_feature_test_cxx_variadic_templates "${MSVC_2013}")
+# Microsoft now states they support contextual conversions
+# see footnote 6 at:
+# http://blogs.msdn.com/b/vcblog/archive/2014/11/17/c-11-14-17-features-in-vs-2015-preview.aspx
+set(_cmake_feature_test_cxx_contextual_conversions "${MSVC_2013}")
 
 set(MSVC_2012 "_MSC_VER >= 1700")
 set(_cmake_feature_test_cxx_decltype_incomplete_return_types "${MSVC_2012}")
@@ -42,24 +71,27 @@ set(_cmake_feature_test_cxx_right_angle_brackets "${MSVC_2010}")
 set(_cmake_feature_test_cxx_rvalue_references "${MSVC_2010}")
 set(_cmake_feature_test_cxx_static_assert "${MSVC_2010}")
 set(_cmake_feature_test_cxx_template_template_parameters "${MSVC_2010}")
+set(_cmake_feature_test_cxx_trailing_return_types "${MSVC_2010}")
 set(_cmake_feature_test_cxx_variadic_macros "${MSVC_2010}")
 
 # Currently unsupported:
 # http://herbsutter.com/2013/11/18/visual-c-compiler-november-2013-ctp/
-# set(_cmake_feature_test_cxx_reference_qualified_functions )
-# set(_cmake_feature_test_cxx_inheriting_constructors )
-# set(_cmake_feature_test_cxx_alignas )
-# set(_cmake_feature_test_cxx_alignof )
-# set(_cmake_feature_test_cxx_thread_local )
-# set(_cmake_feature_test_cxx_func_identifier )
-# set(_cmake_feature_test_cxx_sizeof_member )
+# http://blogs.msdn.com/b/vcblog/archive/2014/11/17/c-11-14-17-features-in-vs-2015-preview.aspx
 
-# set(_cmake_feature_test_cxx_user_literals )
-# set(_cmake_feature_test_cxx_unrestricted_unions )
-# set(_cmake_feature_test_cxx_unicode_literals )
-# set(_cmake_feature_test_cxx_inline_namespaces )
+# set(_cmake_feature_test_cxx_reference_qualified_functions )
 # set(_cmake_feature_test_cxx_constexpr )
-# set(_cmake_feature_test_cxx_noexcept )
 # set(_cmake_feature_test_cxx_attributes )
+# set(_cmake_feature_test_cxx_aggregate_default_initializers )
+# set(_cmake_feature_test_cxx_attribute_deprecated )
+# set(_cmake_feature_test_cxx_defaulted_move_initializers )
+# set(_cmake_feature_test_cxx_nonstatic_member_init )
+# set(_cmake_feature_test_cxx_relaxed_constexpr )
+# set(_cmake_feature_test_cxx_variable_templates )
+
 
-set(_oldestSupported)
+# Unset all the variables that we don't need exposed.
+# _cmake_oldestSupported is required by WriteCompilerDetectionHeader
+set(MSVC_2015)
+set(MSVC_2013)
+set(MSVC_2012)
+set(MSVC_2010)

Modules/Platform/Windows-MSVC-C.cmake

@@ -3,3 +3,5 @@ if(NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 18.0)
   set(_FS_C " /FS")
 endif()
 __windows_compiler_msvc(C)
+
+set(CMAKE_C_STANDARD_DEFAULT 90)

Modules/Platform/Windows-MSVC-CXX.cmake

@@ -5,6 +5,11 @@ if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 18.0)
 endif()
 __windows_compiler_msvc(CXX)
 
+# No version of MSVC has full conformance to C++11. Therefore the
+# __cplusplus macro always evaluates to 98 even if the compilers come with
+# C++11/14/+ features enabled.
+set(CMAKE_CXX_STANDARD_DEFAULT 98)
+
 macro(cmake_record_cxx_compile_features)
   record_compiler_features(CXX "" CMAKE_CXX_COMPILE_FEATURES)
 endmacro()