Features: Record for MSVC 2010-2015

Also, in WCDH add MSVC Compatibility for cxx_align{of,as}.

Co-Author: Stephen Kelly <steveire@gmail.com>
Co-Author: Brad King <brad.king@kitware.com>
This commit is contained in:
Robert Maynard 2015-01-19 15:49:06 -05:00 committed by Brad King
parent 3228fc5049
commit d3489bdb0b
6 changed files with 185 additions and 4 deletions

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@ -0,0 +1,5 @@
feature-record-msvc
-------------------
* The :manual:`Compile Features <cmake-compile-features(7)>` functionality
is now aware of features supported by Microsoft Visual Studio (``MSVC``).

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# 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 >= 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}")
# Digit separators are not available as of VS 2015 Preview, but a footnote
# says they will be available in the RTM.
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 these
# they silently produced bad code, and are now marked as having partial
# support in previous versions. The footnote says the support will be complete
# in MSVC 2015, so support the feature for that version, assuming that is true.
set(_cmake_feature_test_cxx_generalized_initializers "${MSVC_2015}")
set(_cmake_feature_test_cxx_nonstatic_member_init "${MSVC_2015}")
# Microsoft calls this 'rvalue references v3'
set(_cmake_feature_test_cxx_defaulted_move_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(_cmake_feature_test_cxx_reference_qualified_functions "${MSVC_2015}")
# "The copies and moves don't interact precisely like the Standard says they
# should. For example, deletion of moves is specified to also suppress
# copies, but Visual C++ in Visual Studio 2013 does not."
# http://blogs.msdn.com/b/vcblog/archive/2014/11/17/c-11-14-17-features-in-vs-2015-preview.aspx
# lists this as 'partial' in 2013
set(_cmake_feature_test_cxx_deleted_functions "${MSVC_2015}")
set(MSVC_2013 "_MSC_VER >= 1800")
set(_cmake_feature_test_cxx_alias_templates "${MSVC_2013}")
# Microsoft now states they support contextual conversions in 2013 and above.
# See footnote 6 at:
# http://blogs.msdn.com/b/vcblog/archive/2014/11/17/c-11-14-17-features-in-vs-2015-preview.aspx
set(_cmake_feature_test_cxx_contextual_conversions "${MSVC_2013}")
set(_cmake_feature_test_cxx_default_function_template_args "${MSVC_2013}")
set(_cmake_feature_test_cxx_defaulted_functions "${MSVC_2013}")
set(_cmake_feature_test_cxx_delegating_constructors "${MSVC_2013}")
set(_cmake_feature_test_cxx_explicit_conversions "${MSVC_2013}")
set(_cmake_feature_test_cxx_raw_string_literals "${MSVC_2013}")
set(_cmake_feature_test_cxx_uniform_initialization "${MSVC_2013}")
# Support is documented, but possibly partly broken:
# https://msdn.microsoft.com/en-us/library/hh567368.aspx
# http://thread.gmane.org/gmane.comp.lib.boost.devel/244986/focus=245333
set(_cmake_feature_test_cxx_variadic_templates "${MSVC_2013}")
set(MSVC_2012 "_MSC_VER >= 1700")
set(_cmake_feature_test_cxx_enum_forward_declarations "${MSVC_2012}")
set(_cmake_feature_test_cxx_final "${MSVC_2012}")
set(_cmake_feature_test_cxx_range_for "${MSVC_2012}")
set(_cmake_feature_test_cxx_strong_enums "${MSVC_2012}")
set(MSVC_2010 "_MSC_VER >= 1600")
set(_cmake_feature_test_cxx_auto_type "${MSVC_2010}")
set(_cmake_feature_test_cxx_decltype "${MSVC_2010}")
set(_cmake_feature_test_cxx_extended_friend_declarations "${MSVC_2010}")
set(_cmake_feature_test_cxx_extern_templates "${MSVC_2010}")
set(_cmake_feature_test_cxx_lambdas "${MSVC_2010}")
set(_cmake_feature_test_cxx_local_type_template_args "${MSVC_2010}")
set(_cmake_feature_test_cxx_long_long_type "${MSVC_2010}")
set(_cmake_feature_test_cxx_nullptr "${MSVC_2010}")
set(_cmake_feature_test_cxx_override "${MSVC_2010}")
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:
# set(_cmake_feature_test_cxx_constexpr )
# set(_cmake_feature_test_cxx_relaxed_constexpr )
# set(_cmake_feature_test_cxx_attributes )
# set(_cmake_feature_test_cxx_attribute_deprecated )
# 'NSDMIs for aggregates'
# set(_cmake_feature_test_cxx_aggregate_default_initializers )
# set(_cmake_feature_test_cxx_variable_templates )
# In theory decltype incomplete return types was added in 2012
# but without support for decltype_auto and return type deduction this
# feature is unusable. This remains so as of VS 2015 Preview.
# set(_cmake_feature_test_cxx_decltype_incomplete_return_types )
# 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)

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@ -0,0 +1,6 @@
# MSVC has no specific language level or flags to change it.
set(CMAKE_CXX_STANDARD_DEFAULT "")
macro(cmake_record_cxx_compile_features)
record_compiler_features(CXX "" CMAKE_CXX_COMPILE_FEATURES)
endmacro()

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@ -36,7 +36,7 @@
# PREFIX ClimbingStats
# OUTPUT_FILES_VAR support_files
# OUTPUT_DIR compilers
# COMPILERS GNU Clang
# COMPILERS GNU Clang MSVC
# FEATURES cxx_variadic_templates
# )
# install(FILES
@ -100,7 +100,7 @@
# write_compiler_detection_header(
# FILE climbingstats_compiler_detection.h
# PREFIX ClimbingStats
# COMPILERS GNU Clang AppleClang
# COMPILERS GNU Clang AppleClang MSVC
# FEATURES cxx_variadic_templates
# )
#
@ -321,6 +321,7 @@ function(write_compiler_detection_header
GNU
Clang
AppleClang
MSVC
SunPro
)
@ -528,6 +529,8 @@ function(write_compiler_detection_header
# define ${def_value} alignas(X)
# elif ${prefix_arg}_COMPILER_IS_GNU || ${prefix_arg}_COMPILER_IS_Clang || ${prefix_arg}_COMPILER_IS_AppleClang
# define ${def_value} __attribute__ ((__aligned__(X)))
# elif ${prefix_arg}_COMPILER_IS_MSVC
# define ${def_value} __declspec(align(X))
# else
# define ${def_value}
# endif
@ -540,6 +543,8 @@ function(write_compiler_detection_header
# define ${def_value} alignof(X)
# elif ${prefix_arg}_COMPILER_IS_GNU || ${prefix_arg}_COMPILER_IS_Clang || ${prefix_arg}_COMPILER_IS_AppleClang
# define ${def_value} __alignof__(X)
# elif ${prefix_arg}_COMPILER_IS_MSVC
# define ${def_value} __alignof(X)
# endif
\n")
endif()

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@ -100,6 +100,31 @@ if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU"
)
endif()
if (CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 18.0)
list(REMOVE_ITEM CXX_non_features
# The cxx_contextual_conversions feature happens to work
# (for *this* testcase) with VS 2010 and VS 2012, but
# they do not document support until VS 2013.
cxx_contextual_conversions
)
elseif (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 19.0)
list(REMOVE_ITEM CXX_non_features
# The cxx_deleted_functions and cxx_nonstatic_member_init
# features happen to work (for *this* testcase) with VS 2013,
# but they do not document support until VS 2015.
cxx_deleted_functions
cxx_nonstatic_member_init
)
else()
list(REMOVE_ITEM CXX_non_features
# The cxx_constexpr feature happens to work (for *this* testcase)
# with VS 2015, but they document only partial support.
cxx_constexpr
)
endif()
endif()
set(C_ext c)
set(C_standard_flag 11)
set(CXX_ext cpp)
@ -220,6 +245,29 @@ if (CMAKE_CXX_COMPILE_FEATURES)
-DEXPECT_INHERITING_CONSTRUCTORS_AND_FINAL=0
)
endif()
elseif(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 19.0)
add_definitions(
-DEXPECT_OVERRIDE_CONTROL=1
-DEXPECT_INHERITING_CONSTRUCTORS=1
-DEXPECT_FINAL=1
-DEXPECT_INHERITING_CONSTRUCTORS_AND_FINAL=1
)
elseif(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 17.0)
add_definitions(
-DEXPECT_OVERRIDE_CONTROL=1
-DEXPECT_INHERITING_CONSTRUCTORS=0
-DEXPECT_FINAL=1
-DEXPECT_INHERITING_CONSTRUCTORS_AND_FINAL=0
)
else()
add_definitions(
-DEXPECT_OVERRIDE_CONTROL=0
-DEXPECT_INHERITING_CONSTRUCTORS=0
-DEXPECT_FINAL=0
-DEXPECT_INHERITING_CONSTRUCTORS_AND_FINAL=0
)
endif()
elseif (CMAKE_CXX_COMPILER_ID STREQUAL "SunPro")
add_definitions(
-DEXPECT_OVERRIDE_CONTROL=1

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@ -11,7 +11,7 @@ get_property(c_known_features GLOBAL PROPERTY CMAKE_C_KNOWN_FEATURES)
write_compiler_detection_header(
FILE "${CMAKE_CURRENT_BINARY_DIR}/test_compiler_detection.h"
PREFIX TEST
COMPILERS GNU Clang AppleClang SunPro
COMPILERS GNU Clang AppleClang MSVC SunPro
VERSION 3.1
PROLOG "// something"
EPILOG "// more"
@ -67,6 +67,17 @@ if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU"
list(APPEND false_defs EXPECTED_COMPILER_CXX_VARIADIC_TEMPLATES)
endif()
# for msvc the compiler version determines which c++11 features are available.
if (CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
if(";${CMAKE_CXX_COMPILE_FEATURES};" MATCHES ";cxx_delegating_constructors;")
list(APPEND true_defs EXPECTED_COMPILER_CXX_DELEGATING_CONSTRUCTORS)
list(APPEND true_defs EXPECTED_COMPILER_CXX_VARIADIC_TEMPLATES)
else()
list(APPEND false_defs EXPECTED_COMPILER_CXX_DELEGATING_CONSTRUCTORS)
list(APPEND false_defs EXPECTED_COMPILER_CXX_VARIADIC_TEMPLATES)
endif()
endif()
if (CMAKE_C_COMPILER_ID STREQUAL "GNU"
OR CMAKE_C_COMPILER_ID STREQUAL "Clang"
OR CMAKE_C_COMPILER_ID STREQUAL "AppleClang")
@ -84,7 +95,7 @@ write_compiler_detection_header(
PREFIX MULTI
OUTPUT_FILES_VAR multi_files
OUTPUT_DIR "${CMAKE_CURRENT_BINARY_DIR}/compiler_multi_files/compiler_support"
COMPILERS GNU Clang AppleClang SunPro
COMPILERS GNU Clang AppleClang MSVC SunPro
VERSION 3.1
FEATURES
${cxx_known_features} ${c_known_features}