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has_feature_cxx0x.cpp
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// RUN: %clang_cc1 -E -triple x86_64-linux-gnu -std=c++11 %s -o - | FileCheck --check-prefix=CHECK-11 %s
// RUN: %clang_cc1 -E -triple armv7-apple-darwin -std=c++11 %s -o - | FileCheck --check-prefix=CHECK-NO-TLS %s
// RUN: %clang_cc1 -E -triple x86_64-linux-gnu -std=c++98 %s -o - | FileCheck --check-prefix=CHECK-NO-11 %s
// RUN: %clang_cc1 -E -triple x86_64-linux-gnu -std=c++14 %s -o - | FileCheck --check-prefix=CHECK-14 %s
// RUN: %clang_cc1 -E -triple x86_64-linux-gnu -std=c++1z %s -o - | FileCheck --check-prefix=CHECK-1Z %s
#if __has_feature(cxx_atomic)
int has_atomic();
#else
int no_atomic();
#endif
// CHECK-1Z: has_atomic
// CHECK-14: has_atomic
// CHECK-11: has_atomic
// CHECK-NO-11: no_atomic
#if __has_feature(cxx_lambdas)
int has_lambdas();
#else
int no_lambdas();
#endif
// CHECK-1Z: has_lambdas
// CHECK-14: has_lambdas
// CHECK-11: has_lambdas
// CHECK-NO-11: no_lambdas
#if __has_feature(cxx_nullptr)
int has_nullptr();
#else
int no_nullptr();
#endif
// CHECK-1Z: has_nullptr
// CHECK-14: has_nullptr
// CHECK-11: has_nullptr
// CHECK-NO-11: no_nullptr
#if __has_feature(cxx_decltype)
int has_decltype();
#else
int no_decltype();
#endif
// CHECK-1Z: has_decltype
// CHECK-14: has_decltype
// CHECK-11: has_decltype
// CHECK-NO-11: no_decltype
#if __has_feature(cxx_decltype_incomplete_return_types)
int has_decltype_incomplete_return_types();
#else
int no_decltype_incomplete_return_types();
#endif
// CHECK-1Z: has_decltype_incomplete_return_types
// CHECK-14: has_decltype_incomplete_return_types
// CHECK-11: has_decltype_incomplete_return_types
// CHECK-NO-11: no_decltype_incomplete_return_types
#if __has_feature(cxx_auto_type)
int has_auto_type();
#else
int no_auto_type();
#endif
// CHECK-1Z: has_auto_type
// CHECK-14: has_auto_type
// CHECK-11: has_auto_type
// CHECK-NO-11: no_auto_type
#if __has_feature(cxx_trailing_return)
int has_trailing_return();
#else
int no_trailing_return();
#endif
// CHECK-1Z: has_trailing_return
// CHECK-14: has_trailing_return
// CHECK-11: has_trailing_return
// CHECK-NO-11: no_trailing_return
#if __has_feature(cxx_attributes)
int has_attributes();
#else
int no_attributes();
#endif
// CHECK-1Z: has_attributes
// CHECK-14: has_attributes
// CHECK-11: has_attributes
// CHECK-NO-11: no_attributes
#if __has_feature(cxx_static_assert)
int has_static_assert();
#else
int no_static_assert();
#endif
// CHECK-1Z: has_static_assert
// CHECK-14: has_static_assert
// CHECK-11: has_static_assert
// CHECK-NO-11: no_static_assert
#if __has_feature(cxx_deleted_functions)
int has_deleted_functions();
#else
int no_deleted_functions();
#endif
// CHECK-1Z: has_deleted_functions
// CHECK-14: has_deleted_functions
// CHECK-11: has_deleted_functions
// CHECK-NO-11: no_deleted_functions
#if __has_feature(cxx_defaulted_functions)
int has_defaulted_functions();
#else
int no_defaulted_functions();
#endif
// CHECK-1Z: has_defaulted_functions
// CHECK-14: has_defaulted_functions
// CHECK-11: has_defaulted_functions
// CHECK-NO-11: no_defaulted_functions
#if __has_feature(cxx_rvalue_references)
int has_rvalue_references();
#else
int no_rvalue_references();
#endif
// CHECK-1Z: has_rvalue_references
// CHECK-14: has_rvalue_references
// CHECK-11: has_rvalue_references
// CHECK-NO-11: no_rvalue_references
#if __has_feature(cxx_variadic_templates)
int has_variadic_templates();
#else
int no_variadic_templates();
#endif
// CHECK-1Z: has_variadic_templates
// CHECK-14: has_variadic_templates
// CHECK-11: has_variadic_templates
// CHECK-NO-11: no_variadic_templates
#if __has_feature(cxx_inline_namespaces)
int has_inline_namespaces();
#else
int no_inline_namespaces();
#endif
// CHECK-1Z: has_inline_namespaces
// CHECK-14: has_inline_namespaces
// CHECK-11: has_inline_namespaces
// CHECK-NO-11: no_inline_namespaces
#if __has_feature(cxx_range_for)
int has_range_for();
#else
int no_range_for();
#endif
// CHECK-1Z: has_range_for
// CHECK-14: has_range_for
// CHECK-11: has_range_for
// CHECK-NO-11: no_range_for
#if __has_feature(cxx_reference_qualified_functions)
int has_reference_qualified_functions();
#else
int no_reference_qualified_functions();
#endif
// CHECK-1Z: has_reference_qualified_functions
// CHECK-14: has_reference_qualified_functions
// CHECK-11: has_reference_qualified_functions
// CHECK-NO-11: no_reference_qualified_functions
#if __has_feature(cxx_default_function_template_args)
int has_default_function_template_args();
#else
int no_default_function_template_args();
#endif
// CHECK-1Z: has_default_function_template_args
// CHECK-14: has_default_function_template_args
// CHECK-11: has_default_function_template_args
// CHECK-NO-11: no_default_function_template_args
#if __has_feature(cxx_noexcept)
int has_noexcept();
#else
int no_noexcept();
#endif
// CHECK-1Z: has_noexcept
// CHECK-14: has_noexcept
// CHECK-11: has_noexcept
// CHECK-NO-11: no_noexcept
#if __has_feature(cxx_override_control)
int has_override_control();
#else
int no_override_control();
#endif
// CHECK-1Z: has_override_control
// CHECK-14: has_override_control
// CHECK-11: has_override_control
// CHECK-NO-11: no_override_control
#if __has_feature(cxx_alias_templates)
int has_alias_templates();
#else
int no_alias_templates();
#endif
// CHECK-1Z: has_alias_templates
// CHECK-14: has_alias_templates
// CHECK-11: has_alias_templates
// CHECK-NO-11: no_alias_templates
#if __has_feature(cxx_implicit_moves)
int has_implicit_moves();
#else
int no_implicit_moves();
#endif
// CHECK-1Z: has_implicit_moves
// CHECK-14: has_implicit_moves
// CHECK-11: has_implicit_moves
// CHECK-NO-11: no_implicit_moves
#if __has_feature(cxx_alignas)
int has_alignas();
#else
int no_alignas();
#endif
// CHECK-1Z: has_alignas
// CHECK-14: has_alignas
// CHECK-11: has_alignas
// CHECK-NO-11: no_alignas
#if __has_feature(cxx_alignof)
int has_alignof();
#else
int no_alignof();
#endif
// CHECK-1Z: has_alignof
// CHECK-14: has_alignof
// CHECK-11: has_alignof
// CHECK-NO-11: no_alignof
#if __has_feature(cxx_raw_string_literals)
int has_raw_string_literals();
#else
int no_raw_string_literals();
#endif
// CHECK-1Z: has_raw_string_literals
// CHECK-14: has_raw_string_literals
// CHECK-11: has_raw_string_literals
// CHECK-NO-11: no_raw_string_literals
#if __has_feature(cxx_unicode_literals)
int has_unicode_literals();
#else
int no_unicode_literals();
#endif
// CHECK-1Z: has_unicode_literals
// CHECK-14: has_unicode_literals
// CHECK-11: has_unicode_literals
// CHECK-NO-11: no_unicode_literals
#if __has_feature(cxx_constexpr)
int has_constexpr();
#else
int no_constexpr();
#endif
// CHECK-1Z: has_constexpr
// CHECK-14: has_constexpr
// CHECK-11: has_constexpr
// CHECK-NO-11: no_constexpr
#if __has_feature(cxx_constexpr_string_builtins)
int has_constexpr_string_builtins();
#else
int no_constexpr_string_builtins();
#endif
// CHECK-1Z: has_constexpr_string_builtins
// CHECK-14: has_constexpr_string_builtins
// CHECK-11: has_constexpr_string_builtins
// CHECK-NO-11: no_constexpr_string_builtins
#if __has_feature(cxx_generalized_initializers)
int has_generalized_initializers();
#else
int no_generalized_initializers();
#endif
// CHECK-1Z: has_generalized_initializers
// CHECK-14: has_generalized_initializers
// CHECK-11: has_generalized_initializers
// CHECK-NO-11: no_generalized_initializers
#if __has_feature(cxx_unrestricted_unions)
int has_unrestricted_unions();
#else
int no_unrestricted_unions();
#endif
// CHECK-1Z: has_unrestricted_unions
// CHECK-14: has_unrestricted_unions
// CHECK-11: has_unrestricted_unions
// CHECK-NO-11: no_unrestricted_unions
#if __has_feature(cxx_user_literals)
int has_user_literals();
#else
int no_user_literals();
#endif
// CHECK-1Z: has_user_literals
// CHECK-14: has_user_literals
// CHECK-11: has_user_literals
// CHECK-NO-11: no_user_literals
#if __has_feature(cxx_local_type_template_args)
int has_local_type_template_args();
#else
int no_local_type_template_args();
#endif
// CHECK-1Z: has_local_type_template_args
// CHECK-14: has_local_type_template_args
// CHECK-11: has_local_type_template_args
// CHECK-NO-11: no_local_type_template_args
#if __has_feature(cxx_inheriting_constructors)
int has_inheriting_constructors();
#else
int no_inheriting_constructors();
#endif
// CHECK-1Z: has_inheriting_constructors
// CHECK-14: has_inheriting_constructors
// CHECK-11: has_inheriting_constructors
// CHECK-NO-11: no_inheriting_constructors
#if __has_feature(cxx_thread_local)
int has_thread_local();
#else
int no_thread_local();
#endif
// CHECK-1Z: has_thread_local
// CHECK-14: has_thread_local
// CHECK-11: has_thread_local
// CHECK-NO-11: no_thread_local
// CHECK-NO-TLS: no_thread_local
// === C++14 features ===
#if __has_feature(cxx_binary_literals)
int has_binary_literals();
#else
int no_binary_literals();
#endif
// CHECK-1Z: has_binary_literals
// CHECK-14: has_binary_literals
// CHECK-11: no_binary_literals
// CHECK-NO-11: no_binary_literals
#if __has_feature(cxx_aggregate_nsdmi)
int has_aggregate_nsdmi();
#else
int no_aggregate_nsdmi();
#endif
// CHECK-1Z: has_aggregate_nsdmi
// CHECK-14: has_aggregate_nsdmi
// CHECK-11: no_aggregate_nsdmi
// CHECK-NO-11: no_aggregate_nsdmi
#if __has_feature(cxx_return_type_deduction)
int has_return_type_deduction();
#else
int no_return_type_deduction();
#endif
// CHECK-1Z: has_return_type_deduction
// CHECK-14: has_return_type_deduction
// CHECK-11: no_return_type_deduction
// CHECK-NO-11: no_return_type_deduction
#if __has_feature(cxx_contextual_conversions)
int has_contextual_conversions();
#else
int no_contextual_conversions();
#endif
// CHECK-1Z: has_contextual_conversions
// CHECK-14: has_contextual_conversions
// CHECK-11: no_contextual_conversions
// CHECK-NO-11: no_contextual_conversions
#if __has_feature(cxx_relaxed_constexpr)
int has_relaxed_constexpr();
#else
int no_relaxed_constexpr();
#endif
// CHECK-1Z: has_relaxed_constexpr
// CHECK-14: has_relaxed_constexpr
// CHECK-11: no_relaxed_constexpr
// CHECK-NO-11: no_relaxed_constexpr
#if __has_feature(cxx_variable_templates)
int has_variable_templates();
#else
int no_variable_templates();
#endif
// CHECK-1Z: has_variable_templates
// CHECK-14: has_variable_templates
// CHECK-11: no_variable_templates
// CHECK-NO-11: no_variable_templates
#if __has_feature(cxx_init_captures)
int has_init_captures();
#else
int no_init_captures();
#endif
// CHECK-1Z: has_init_captures
// CHECK-14: has_init_captures
// CHECK-11: no_init_captures
// CHECK-NO-11: no_init_captures
#if __has_feature(cxx_decltype_auto)
int has_decltype_auto();
#else
int no_decltype_auto();
#endif
// CHECK-1Z: has_decltype_auto
// CHECK-14: has_decltype_auto
// CHECK-11: no_decltype_auto
// CHECK-NO-11: no_decltype_auto
#if __has_feature(cxx_generic_lambdas)
int has_generic_lambdas();
#else
int no_generic_lambdas();
#endif
// CHECK-1Z: has_generic_lambdas
// CHECK-14: has_generic_lambdas
// CHECK-11: no_generic_lambdas
// CHECK-NO-11: no_generic_lambdas