d0d2772379
Implement P2513 This change allows initializing an array of unsigned char, or char from u8 string literals. This was done both to support legacy code and for compatibility with C where char8_t will be typedef to unsigned char. This is backported to C++20 as per WG21 guidance. Reviewed By: aaron.ballman Differential Revision: https://reviews.llvm.org/D136449
367 lines
12 KiB
C++
367 lines
12 KiB
C++
// RUN: %clang_cc1 -std=c++98 -fcxx-exceptions -verify %s
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// RUN: %clang_cc1 -std=c++11 -fcxx-exceptions -verify %s
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// RUN: %clang_cc1 -std=c++14 -fcxx-exceptions -fsized-deallocation -verify %s
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// RUN: %clang_cc1 -std=c++17 -fcxx-exceptions -fsized-deallocation -verify %s
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// RUN: %clang_cc1 -std=c++20 -fcxx-exceptions -fsized-deallocation -verify %s
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// RUN: %clang_cc1 -std=c++2b -fcxx-exceptions -fsized-deallocation -verify %s
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//
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// RUN: %clang_cc1 -std=c++17 -fcxx-exceptions -fsized-deallocation -frelaxed-template-template-args -DRELAXED_TEMPLATE_TEMPLATE_ARGS=1 -verify %s
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// RUN: %clang_cc1 -std=c++17 -fcxx-exceptions -fsized-deallocation -DCONCEPTS_TS=1 -verify %s
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// RUN: %clang_cc1 -std=c++14 -fno-rtti -fno-threadsafe-statics -verify %s -DNO_EXCEPTIONS -DNO_RTTI -DNO_THREADSAFE_STATICS -fsized-deallocation
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// RUN: %clang_cc1 -std=c++14 -fcoroutines-ts -DNO_EXCEPTIONS -DCOROUTINES -verify -fsized-deallocation %s
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// RUN: %clang_cc1 -std=c++14 -fchar8_t -DNO_EXCEPTIONS -DCHAR8_T -verify -fsized-deallocation %s
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// RUN: %clang_cc1 -std=c++2a -fno-char8_t -DNO_EXCEPTIONS -DNO_CHAR8_T -verify -fsized-deallocation %s
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// expected-no-diagnostics
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// FIXME using `defined` in a macro has undefined behavior.
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#if __cplusplus < 201103L
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#define check(macro, cxx98, cxx11, cxx14, cxx17, cxx20, cxx23) (cxx98 == 0 ? defined(__cpp_##macro) : __cpp_##macro != cxx98)
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#elif __cplusplus < 201402L
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#define check(macro, cxx98, cxx11, cxx14, cxx17, cxx20, cxx23) (cxx11 == 0 ? defined(__cpp_##macro) : __cpp_##macro != cxx11)
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#elif __cplusplus < 201703L
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#define check(macro, cxx98, cxx11, cxx14, cxx17, cxx20, cxx23) (cxx14 == 0 ? defined(__cpp_##macro) : __cpp_##macro != cxx14)
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#elif __cplusplus < 202002L
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#define check(macro, cxx98, cxx11, cxx14, cxx17, cxx20, cxx23) (cxx17 == 0 ? defined(__cpp_##macro) : __cpp_##macro != cxx17)
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#elif __cplusplus == 202002L
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#define check(macro, cxx98, cxx11, cxx14, cxx17, cxx20, cxx23) (cxx20 == 0 ? defined(__cpp_##macro) : __cpp_##macro != cxx20)
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#else
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#define check(macro, cxx98, cxx11, cxx14, cxx17, cxx20, cxx23) (cxx23 == 0 ? defined(__cpp_##macro) : __cpp_##macro != cxx23)
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#endif
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// --- C++2b features ---
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#if check(implicit_move, 0, 0, 0, 0, 0, 202011)
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#error "wrong value for __cpp_implicit_move"
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#endif
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#if check(size_t_suffix, 0, 0, 0, 0, 0, 202011)
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#error "wrong value for __cpp_size_t_suffix"
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#endif
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#if check(if_consteval, 0, 0, 0, 0, 0, 202106)
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#error "wrong value for __cpp_if_consteval"
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#endif
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#if check(multidimensional_subscript, 0, 0, 0, 0, 0, 202110)
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#error "wrong value for __cpp_multidimensional_subscript"
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#endif
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#if check(static_call_operator, 0, 202207, 202207, 202207, 202207, 202207)
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#error "wrong value for __cpp_static_call_operator"
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#endif
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#if check(named_character_escapes, 202207, 202207, 202207, 202207, 202207, 202207)
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#error "wrong value for __cpp_named_character_escapes"
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#endif
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#if check(explicit_this_parameter, 0, 0, 0, 0, 0, 0)
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#error "wrong value for __cpp_explicit_this_parameter"
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#endif
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// --- C++20 features ---
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#if check(aggregate_paren_init, 0, 0, 0, 0, 0, 0)
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// FIXME: 201902 in C++20
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#error "wrong value for __cpp_aggregate_paren_init"
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#endif
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#if defined(CHAR8_T) ? check(char8_t, 202207, 202207, 202207, 202207, 202207, 202207) : \
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defined(NO_CHAR8_T) ? check(char8_t, 0, 0, 0, 0, 0, 0) : \
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check(char8_t, 0, 0, 0, 0, 202207, 202207)
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#error "wrong value for __cpp_char8_t"
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#endif
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#if check(concepts, 0, 0, 0, 0, 201907, 201907)
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#error "wrong value for __cpp_concepts"
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#endif
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#if check(conditional_explicit, 0, 0, 0, 0, 201806, 201806)
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#error "wrong value for __cpp_conditional_explicit"
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#endif
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#if check(consteval, 0, 0, 0, 0, 0, 0)
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// FIXME: 201811 in C++20
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#error "wrong value for __cpp_consteval"
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#endif
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// constexpr checked below
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#if check(constexpr_dynamic_alloc, 0, 0, 0, 0, 201907, 201907)
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#error "wrong value for __cpp_constexpr_dynamic_alloc"
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#endif
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#if check(constexpr_in_decltype, 0, 201711, 201711, 201711, 201711, 201711)
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#error "wrong value for __cpp_constexpr_in_decltype"
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#endif
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#if check(constinit, 0, 0, 0, 0, 201907, 201907)
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#error "wrong value for __cpp_constinit"
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#endif
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// deduction_guides checked below
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#if check(designated_initializers, 0, 0, 0, 0, 201707, 201707)
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#error "wrong value for __cpp_designated_initializers"
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#endif
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// generic_lambdas checked below
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#if check(impl_destroying_delete, 201806, 201806, 201806, 201806, 201806, 201806)
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#error "wrong value for __cpp_impl_destroying_delete"
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#endif
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#if check(impl_three_way_comparison, 0, 0, 0, 0, 201907, 201907)
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#error "wrong value for __cpp_impl_three_way_comparison"
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#endif
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#if check(impl_coroutine, 0, 0, 0, 0, 201902L, 201902L)
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#error "wrong value for __cpp_impl_coroutine"
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#endif
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// init_captures checked below
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#if check(modules, 0, 0, 0, 0, 0, 0)
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// FIXME: 201907 in C++20
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#error "wrong value for __cpp_modules"
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#endif
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#if check(using_enum, 0, 0, 0, 0, 201907, 201907)
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#error "wrong value for __cpp_using_enum"
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#endif
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// --- C++17 features ---
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#if check(hex_float, 0, 0, 0, 201603, 201603, 201603)
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#error "wrong value for __cpp_hex_float"
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#endif
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#if check(inline_variables, 0, 0, 0, 201606, 201606, 201606)
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#error "wrong value for __cpp_inline_variables"
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#endif
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#if check(aligned_new, 0, 0, 0, 201606, 201606, 201606)
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#error "wrong value for __cpp_aligned_new"
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#endif
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#if check(guaranteed_copy_elision, 0, 0, 0, 201606, 201606, 201606)
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#error "wrong value for __cpp_guaranteed_copy_elision"
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#endif
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#if check(noexcept_function_type, 0, 0, 0, 201510, 201510, 201510)
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#error "wrong value for __cpp_noexcept_function_type"
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#endif
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#if check(fold_expressions, 0, 0, 0, 201603, 201603, 201603)
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#error "wrong value for __cpp_fold_expressions"
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#endif
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#if check(capture_star_this, 0, 0, 0, 201603, 201603, 201603)
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#error "wrong value for __cpp_capture_star_this"
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#endif
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// constexpr checked below
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#if check(if_constexpr, 0, 0, 0, 201606, 201606, 201606)
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#error "wrong value for __cpp_if_constexpr"
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#endif
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// range_based_for checked below
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// static_assert checked below
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#if check(deduction_guides, 0, 0, 0, 201703, 201703, 201703)
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// FIXME: 201907 in C++20
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#error "wrong value for __cpp_deduction_guides"
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#endif
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#if check(nontype_template_parameter_auto, 0, 0, 0, 201606, 201606, 201606)
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#error "wrong value for __cpp_nontype_template_parameter_auto"
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#endif
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// This is the old name (from P0096R4) for
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// __cpp_nontype_template_parameter_auto
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#if check(template_auto, 0, 0, 0, 201606, 201606, 201606)
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#error "wrong value for __cpp_template_auto"
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#endif
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#if check(namespace_attributes, 0, 0, 0, 201411, 201411, 201411)
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// FIXME: allowed without warning in C++14 and C++11
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#error "wrong value for __cpp_namespace_attributes"
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#endif
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#if check(enumerator_attributes, 0, 0, 0, 201411, 201411, 201411)
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// FIXME: allowed without warning in C++14 and C++11
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#error "wrong value for __cpp_enumerator_attributes"
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#endif
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// This is an old name (from P0096R4), now removed from SD-6.
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#if check(nested_namespace_definitions, 0, 0, 0, 201411, 201411, 201411)
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#error "wrong value for __cpp_nested_namespace_definitions"
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#endif
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// inheriting_constructors checked below
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#if check(variadic_using, 0, 0, 0, 201611, 201611, 201611)
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#error "wrong value for __cpp_variadic_using"
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#endif
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#if check(aggregate_bases, 0, 0, 0, 201603, 201603, 201603)
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#error "wrong value for __cpp_aggregate_bases"
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#endif
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#if check(structured_bindings, 0, 0, 0, 201606, 201606, 201606)
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#error "wrong value for __cpp_structured_bindings"
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#endif
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#if check(nontype_template_args, 0, 0, 0, 201411, 201411, 201411)
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// FIXME: 201911 in C++20
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#error "wrong value for __cpp_nontype_template_args"
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#endif
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#if defined(RELAXED_TEMPLATE_TEMPLATE_ARGS) \
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? check(template_template_args, 0, 0, 0, 201611, 201611, 201611) \
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: check(template_template_args, 0, 0, 0, 0, 0, 0)
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#error "wrong value for __cpp_template_template_args"
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#endif
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// --- C++14 features ---
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#if check(binary_literals, 0, 0, 201304, 201304, 201304, 201304)
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#error "wrong value for __cpp_binary_literals"
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#endif
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// (Removed from SD-6.)
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#if check(digit_separators, 0, 0, 201309, 201309, 201309, 201309)
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#error "wrong value for __cpp_digit_separators"
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#endif
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#if check(init_captures, 0, 0, 201304, 201304, 201803, 201803)
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#error "wrong value for __cpp_init_captures"
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#endif
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#if check(generic_lambdas, 0, 0, 201304, 201304, 201707, 201707)
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#error "wrong value for __cpp_generic_lambdas"
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#endif
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#if check(sized_deallocation, 0, 0, 201309, 201309, 201309, 201309)
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#error "wrong value for __cpp_sized_deallocation"
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#endif
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// constexpr checked below
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#if check(decltype_auto, 0, 0, 201304, 201304, 201304, 201304)
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#error "wrong value for __cpp_decltype_auto"
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#endif
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#if check(return_type_deduction, 0, 0, 201304, 201304, 201304, 201304)
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#error "wrong value for __cpp_return_type_deduction"
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#endif
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#if check(runtime_arrays, 0, 0, 0, 0, 0, 0)
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#error "wrong value for __cpp_runtime_arrays"
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#endif
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#if check(aggregate_nsdmi, 0, 0, 201304, 201304, 201304, 201304)
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#error "wrong value for __cpp_aggregate_nsdmi"
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#endif
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#if check(variable_templates, 0, 0, 201304, 201304, 201304, 201304)
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#error "wrong value for __cpp_variable_templates"
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#endif
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// --- C++11 features ---
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#if check(unicode_characters, 0, 200704, 200704, 200704, 200704, 200704)
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#error "wrong value for __cpp_unicode_characters"
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#endif
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#if check(raw_strings, 0, 200710, 200710, 200710, 200710, 200710)
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#error "wrong value for __cpp_raw_strings"
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#endif
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#if check(unicode_literals, 0, 200710, 200710, 200710, 200710, 200710)
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#error "wrong value for __cpp_unicode_literals"
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#endif
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#if check(user_defined_literals, 0, 200809, 200809, 200809, 200809, 200809)
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#error "wrong value for __cpp_user_defined_literals"
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#endif
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#if defined(NO_THREADSAFE_STATICS) ? check(threadsafe_static_init, 0, 0, 0, 0, 0, 0) : \
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check(threadsafe_static_init, 200806, 200806, 200806, 200806, 200806, 200806)
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#error "wrong value for __cpp_threadsafe_static_init"
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#endif
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#if check(lambdas, 0, 200907, 200907, 200907, 200907, 200907)
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#error "wrong value for __cpp_lambdas"
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#endif
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#if check(constexpr, 0, 200704, 201304, 201603, 201907, 202110)
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#error "wrong value for __cpp_constexpr"
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#endif
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#if check(range_based_for, 0, 200907, 200907, 201603, 201603, 201603)
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#error "wrong value for __cpp_range_based_for"
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#endif
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#if check(static_assert, 0, 200410, 200410, 201411, 201411, 201411)
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#error "wrong value for __cpp_static_assert"
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#endif
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#if check(decltype, 0, 200707, 200707, 200707, 200707, 200707)
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#error "wrong value for __cpp_decltype"
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#endif
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#if check(attributes, 0, 200809, 200809, 200809, 200809, 200809)
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#error "wrong value for __cpp_attributes"
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#endif
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#if check(rvalue_references, 0, 200610, 200610, 200610, 200610, 200610)
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#error "wrong value for __cpp_rvalue_references"
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#endif
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#if check(variadic_templates, 0, 200704, 200704, 200704, 200704, 200704)
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#error "wrong value for __cpp_variadic_templates"
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#endif
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#if check(initializer_lists, 0, 200806, 200806, 200806, 200806, 200806)
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#error "wrong value for __cpp_initializer_lists"
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#endif
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#if check(delegating_constructors, 0, 200604, 200604, 200604, 200604, 200604)
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#error "wrong value for __cpp_delegating_constructors"
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#endif
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#if check(nsdmi, 0, 200809, 200809, 200809, 200809, 200809)
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#error "wrong value for __cpp_nsdmi"
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#endif
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#if check(inheriting_constructors, 0, 201511, 201511, 201511, 201511, 201511)
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#error "wrong value for __cpp_inheriting_constructors"
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#endif
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#if check(ref_qualifiers, 0, 200710, 200710, 200710, 200710, 200710)
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#error "wrong value for __cpp_ref_qualifiers"
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#endif
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#if check(alias_templates, 0, 200704, 200704, 200704, 200704, 200704)
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#error "wrong value for __cpp_alias_templates"
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#endif
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// --- C++98 features ---
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#if defined(NO_RTTI) ? check(rtti, 0, 0, 0, 0, 0, 0) : check(rtti, 199711, 199711, 199711, 199711, 199711, 199711)
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#error "wrong value for __cpp_rtti"
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#endif
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#if defined(NO_EXCEPTIONS) ? check(exceptions, 0, 0, 0, 0, 0, 0) : check(exceptions, 199711, 199711, 199711, 199711, 199711, 199711)
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#error "wrong value for __cpp_exceptions"
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#endif
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// --- TS features --
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#if defined(COROUTINES) ? check(coroutines, 201703, 201703, 201703, 201703, 201703, 201703) : check(coroutines, 0, 0, 0, 0, 201703, 201703)
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#error "wrong value for __cpp_coroutines"
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#endif
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