Difference between revisions of "Template:cpp/compiler support/20"

Latest revision as of 21:22, 15 September 2024

[edit] C++20 core language features

C++20 feature	Paper(s)	GCC	Clang	MSVC	Apple Clang	EDG eccp	Intel C++	IBM XL C++	IBM Open XL C++ for AIX	IBM Open XL C++ for z/OS	Sun/Oracle C++	Embarcadero C++ Builder	Cray	Nvidia HPC C++ (ex PGI)*	Nvidia nvcc
Allow Lambda capture `[=, this]`	P0409R2	8	6	19.22*	10.0.0*	5.1	2021.1						11.0	20.7	12.0
`__VA_OPT__`	P0306R4 P1042R1	8 (partial)* 10 (partial)* 12	9	19.25*	11.0.3*	5.1	2021.1						11.0	20.7	12.0
Designated initializers	P0329R4	4.7 (partial)* 8	3.0 (partial)* 10	19.21*	12.0.0*	5.1	2021.1						11.0	20.7	12.0
template-parameter-list for generic lambdas	P0428R2	8	9	19.22*	11.0.0*	5.1	2021.1						11.0	20.7	12.0
Default member initializers for bit-fields	P0683R1	8	6	19.25*	10.0.0*	5.1	2021.1						11.0	20.7	12.0
Initializer list constructors in class template argument deduction	P0702R1	8	6	19.14*	Yes	5.0	2021.1						11.0	20.7	12.0
`const&`-qualified pointers to members	P0704R1	8	6	19.0 (2015)*	10.0.0*	5.1	2021.1						11.0	20.7	12.0
Concepts	P0734R0	6 (TS only) 10	10	19.23* (partial)* 19.30*	12.0.0* (partial)	6.1	2023.1*						11.0	20.11	12.0
Lambdas in unevaluated contexts	P0315R4	9	13 (partial)* 14 (partial)* 17	19.28 (16.8)*	13.1.6* (partial)	6.2	2023.1 (partial) 2024.0								12.0
Three-way comparison operator	P0515R3	10	8 (partial) 10	19.20*	12.0.0*	5.1	2021.1						11.0	20.7	12.0
DR11: Simplifying implicit lambda capture	P0588R1	8		19.24*		5.1	2021.1							20.7	12.0
init-statements for range-based for	P0614R1	9	8	19.25*	11.0.0*	6.0	2021.7						11.0	20.11	12.0
Default constructible and assignable stateless lambdas	P0624R2	9	8	19.22*	10.0.1*	5.1	2021.1						11.0	20.7	12.0
Type mismatch of defaulted special member functions	P0641R2	9 (partial)*	8	19.0 (2015)* (partial)*	10.0.1*	5.1	2021.1						11.0	20.7	12.0
Access checking on specializations	P0692R1	Yes	8 (partial) 14	19.26*	14.0.0*	5.1	2021.1							20.7	12.0
ADL and function templates that are not visible	P0846R0	9	9	19.21*	11.0.3*	5.1	2021.1						11.0	20.7	12.0
DR11: Specify when `constexpr` function definitions are needed for constant evaluation	P0859R0	5.2 (partial)* 9	8	19.27* (partial)* 19.31**	11.0.0*								11.0		12.0
Attributes `[[likely]]` and `[[unlikely]]`	P0479R5	9	12	19.26*	13.0.0*	5.1	2021.7							20.7	12.0
Make `typename` more optional	P0634R3	9	16	19.29 (16.10)*		5.1	2023.1							20.7	12.0
`Pack-expansions` in lambda init-captures	P0780R2	9	9	19.22*	11.0.3*	6.1	2021.7						11.0	20.11	12.0
Attribute `[[no_unique_address]]`	P0840R2	9	9	19.28 (16.9)**	11.0.3*	5.1	2021.1						11.0	20.7	12.0
Conditionally Trivial Special Member Functions	P0848R3	10	16	19.28 (16.8)*		6.1	2021.7							20.11	12.0
DR17: Relaxing the structured bindings customization point finding rules	P0961R1	8	8	19.21*	10.0.1*	5.1	2021.1						11.0	20.7	12.0
DR11: Relaxing the range-for loop customization point finding rules	P0962R1	8	8	19.25*	11.0.0*	5.1	2021.1						11.0	20.7	12.0
DR17: Allow structured bindings to accessible members	P0969R0	8	8	19.21*	10.0.1*	5.1	2021.1						11.0	20.7	12.0
Destroying `operator delete`	P0722R3	9	6	19.27*	10.0.0*	6.1	2023.1						11.0	20.11	12.0
Class types in Non-type template parameters	P0732R2	9	12 (partial)	19.26(partial) 19.28 (16.9)*	13.0.0* (partial)	6.2	2023.1 (partial)								12.0
Deprecate implicit capture of `this` via `[=]`	P0806R2	9	7	19.22*	10.0.1*	5.1							11.0	20.7	12.0
`explicit(bool)`	P0892R2	9	9	19.24*	11.0.3*	5.1	2021.1						11.0	20.7	12.0
Integrating feature-test macros	P0941R2	5	3.4	19.15* (partial) 19.20*	Yes	5.0	2021.1						11.0	20.7	12.0
Prohibit aggregates with user-declared constructors	P1008R1	9	8	19.20*	10.0.1*	5.1	2021.1						11.0	20.7	12.0
`constexpr` virtual function	P1064R0	9	9	19.28 (16.9)*	11.0.3*	5.1	2021.1						11.0	20.7	12.0
Consistency improvements for comparisons	P1120R0	10	8 (partial) 10	19.22*	12.0.0*	5.1	2023.1						11.0	20.7	12.0
`char8_t`	P0482R6	9	7*	19.22*	10.0.0*	5.1	2021.1						11.0	20.7	12.0
`std::is_constant_evaluated()`	P0595R2	9	9	19.25*	11.0.3*	5.1	19.1						11.0		12.0
`constexpr` `try`-`catch` blocks	P1002R1	9	8	19.25*	10.0.1*	5.1	2023.1						11.0	20.7	12.0
Immediate functions (`consteval`)	P1073R3	10 (partial)* 11	11 (partial) 14 (partial)* 17	19.28 (16.8)* (partial)* 19.29 (16.10)*	11.0.3* (partial) 15.0.0*	5.1	2021.1							20.7	12.0
Nested inline namespaces	P1094R2	9	8	19.27*	10.0.1*	5.1	2021.1						11.0	20.7	12.0
Yet another approach for constrained declarations	P1141R2	10	10	19.26* (partial) 19.28 (16.9)*	12.0.5*	6.1	2023.1						11.0	20.11	12.0
Signed integers are two's complement	P1236R1	9	9	Yes	11.0.3*	N/A	2023.1*						11.0	yes*	12.0
`dynamic_cast` and polymorphic `typeid` in constant expressions	P1327R1	10	9	19.29 (16.10)*	11.0.3*	5.1	2021.1						11.0	20.7	12.0
Changing the active member of a union inside `constexpr`	P1330R0	9	9	19.10*	11.0.3*	5.1	2021.1						11.0	20.7	12.0
Coroutines	P0912R5	10	8 (partial) 17 (partial)*	19.0 (2015)* (partial) 19.10* (TS only) 19.28 (16.8)*	10.0.1* (partial)	5.1	2021.1								12.0 (host code only)
Parenthesized initialization of aggregates	P0960R3	10	16	19.28 (16.8)*		5.1	2021.1							20.7	12.0
DR11: Array size deduction in `new`-expressions	P1009R2	11	9	19.27*	11.0.3*	5.1	2021.1						11.0	20.7	12.0
Modules	P1103R3	11 (partial)	8 (partial)	19.0 (2015)* (partial) 19.10* (TS only) 19.28 (16.8)*	10.0.1* (partial)		2023.1 (partial)
Stronger Unicode requirements	P1041R4 P1139R2	10	Yes	19.0 (2015)* (P1041R4) 19.26* (P1139R2)	Yes	N/A	2023.1*						11.0		12.0
`<=> != ==`	P1185R2	10	10	19.22*	12.0.0*	5.1	2021.1						11.0	20.7	12.0
DR11: Explicitly defaulted functions with different exception specifications	P1286R2	10	9	19.28 (16.8)*	11.0.3*	5.1	2021.1						11.0	20.7	12.0
Lambda capture and storage class specifiers of structured bindings	P1091R3 P1381R1	10	8 (partial) 16	19.11(P1381R1) 19.24(P1091R3)	10.0.1* (partial)	5.1	2021.1							20.7	12.0
Permit conversions to arrays of unknown bound	P0388R4	10	14	19.27*	14.0.0*	6.0	2021.5							20.11	12.0
`constexpr` container operations	P0784R7	10	10	19.28 (16.9)*	12.0.0*	6.0	2021.5						11.0	20.11	12.0
Deprecating some uses of `volatile`	P1152R4	10	10	19.27*	12.0.0*	6.0	2021.5						11.0	20.11	12.0
`constinit`	P1143R2	10	10	19.29 (16.10)*	12.0.0*	6.1	2021.7						11.0	20.11	12.0
Deprecate comma operator in subscripts	P1161R3	10	9	19.25*	11.0.3*	6.0	2021.7						11.0	20.11	12.0
`[[nodiscard]]` with message	P1301R4	10	9	19.25*	11.0.3*	6.0	2021.5						11.0	20.11	12.0
Trivial default initialization in `constexpr` functions	P1331R2	10	10	19.27*	12.0.0*	6.1	2021.7						11.0	20.11	12.0
Unevaluated `asm`-declaration in `constexpr` functions	P1668R1	10	10	19.28 (16.9)*	12.0.0*	6.1	2021.7						11.0	20.11	12.0
`using enum`	P1099R5	11	13	19.24*	13.1.6*	6.3	2023.1								12.0
Synthesizing Three-way comparison for specified comparison category	P1186R3	11	10	19.24*	12.0.0*	6.0	2021.5						11.0	20.11	12.0
DR17: `[[nodiscard]]` for constructors	P1771R1	10	9	19.24*	11.0.3*	6.0	2021.5						11.0	20.11	12.0
class template argument deduction for alias templates	P1814R0	10	19	19.27*		6.5									12.0
class template argument deduction for aggregates	P1816R0 P2082R1	10(P1816R0) 11(P2082R1)	17	19.27*		6.3	2023.1 (partial)* 2024.1								12.0
DR11: Implicit move for more local objects and rvalue references	P1825R0	11*	13	19.24*	13.1.6*	6.0	2021.5							20.11	12.0
Allow defaulting comparisons by value	P1946R0	10	10	19.25*	12.0.0*	6.1	2021.7						11.0	20.11	12.0
Remove `std::weak_equality` and `std::strong_equality`	P1959R0	10	10	19.25*	12.0.0*	6.1	2021.7						11.0	20.11	12.0
Inconsistencies with non-type template parameters	P1907R1	10 (partial) 11	18 (partial)*	19.26*	13.1.6* (partial)	6.2	2023.1 (partial)								12.0
DR98: Pseudo-destructors end object lifetimes	P0593R6	11	11	Yes	12.0.5*	N/A	2023.1*						11.0		12.0
DR11: Converting from `T*` to bool should be considered narrowing	P1957R2	10* 11*	11	19.27*	12.0.5*	6.1							11.0		12.0
C++20 feature	Paper(s)	GCC	Clang	MSVC	Apple Clang	EDG eccp	Intel C++	IBM XL C++	IBM Open XL C++ for AIX	IBM Open XL C++ for z/OS	Sun/Oracle C++	Embarcadero C++ Builder	Cray	Nvidia HPC C++ (ex PGI)*	Nvidia nvcc

[edit] C++20 library features

C++20 feature	Paper(s)	GCC libstdc++	Clang libc++	MSVC STL	Apple Clang*	IBM Open XL C/C++ for AIX*	Sun/Oracle C++*	Embarcadero C++ Builder*
`std::endian`	P0463R1	8	7	19.22*	10.0.0*
Extending std::make_shared() to support arrays	P0674R1	12	15	19.27*	14.0.3*
Floating-point atomic	P0020R6	10	18	19.22*
Synchronized buffered (`std::basic_osyncstream`)	P0053R7	11	18	19.29 (16.10)*
`constexpr` for `<algorithm>` and `<utility>`	P0202R3	10	8 (partial) 12	19.26*	10.0.1* (partial) 13.0.0*
More `constexpr` for `<complex>`	P0415R1	9	7 (partial) 16	19.27*	10.0.0* (partial) 15.0.0*
Make std::memory_order a scoped enumeration	P0439R0	9	9	19.25*	11.0.3*
String prefix and suffix checking: `string(_view)::starts_with`/`ends_with`	P0457R2	9	6	19.21*	10.0.0*
Library support for `operator<=>` `<compare>`	P0768R1	10	7 (partial) 12 (partial)* 17	19.20* (partial) 19.28 (16.9)*	13.0.0*
`std::remove_cvref`	P0550R2	9	6	19.20*	10.0.0*
`[[nodiscard]]` in the standard library	P0600R1	9	7 (partial) 16	19.13* (partial) 19.22*	10.0.0* (partial) 15.0.0*
Using `std::move` in numeric algorithms	P0616R0	9	12	19.23*	13.0.0*
Utility to convert a pointer to a raw pointer	P0653R2	8	6	19.22*	Yes
Atomic `std::shared_ptr` and `std::weak_ptr`	P0718R2	12		19.27*
`std::span`	P0122R7	10	7	19.26*	10.0.0*
Calendar and timezone	P0355R7	11 (partial)* 13 (partial)* 14	7 (partial) 19 (partial)*	19.29 (16.10)*	10.0.0* (partial)
`<version>`	P0754R2	9	7	19.22*	10.0.0*
Comparing unordered containers	P0809R0	Yes	Yes	16.0*	Yes
ConstexprIterator requirements	P0858R0	9	12	19.11*	13.0.0*
std::basic_string::reserve() should not shrink	P0966R1	11	8	19.25*	10.0.1*
Atomic Compare-And-Exchange with padding bits	P0528R3	13		19.28 (16.8)*
`std::atomic_ref`	P0019R8	10	19	19.28 (16.8)*
`contains()` member function of associative containers, e.g. `std::map::contains()`	P0458R2	9	13	19.21*	13.1.6*
DR11: Guaranteed copy elision for piecewise construction	P0475R1	9	Yes	19.29 (16.10)*	Yes
`std::bit_cast()`	P0476R2	11	14	19.27*	14.0.3*
Integral power-of-2 operations: `std::bit_ceil()`, `std::bit_floor()`, `std::bit_width()`, `std::has_single_bit()`	P0556R3 P1956R1	9 (P0556R3) 10 (P1956R1)	9 (P0556R3) 12 (P1956R1)	19.25* (P0556R3)* 19.27* (P1956R1)* 19.28 (16.8)*	11.0.3* (P0556R3) 13.0.0* (P1956R1)
Improving the return value of erase-like algorithms	P0646R1	9	10	19.21*	12.0.0*
`std::destroying_delete`	P0722R3	9	9	19.27*	11.0.3*
`std::is_nothrow_convertible`	P0758R1	9	9	19.23*	11.0.3*
Add `std::shift_left/right` to `<algorithm>`	P0769R2	10	12	19.21*	13.0.0*
Constexpr for std::swap() and `swap` related functions	P0879R0	10	13	19.26*	13.1.6*
`std::type_identity`	P0887R1	9	8	19.21*	10.0.1*
Concepts library	P0898R3	10	13	19.23*	13.1.6*
`constexpr` comparison operators for std::array	P1023R0	10	8	19.27*	10.0.1*
`std::unwrap_ref_decay` and `std::unwrap_reference`	P0318R1	9	8	19.21*	10.0.1*
`std::bind_front()`	P0356R5	9	13	19.25*	13.1.6*
std::reference_wrapper for incomplete types	P0357R3	9	8	19.26*	10.0.1*
Fixing `operator>>(basic_istream&, CharT*)`	P0487R1	11	8	19.23*	10.0.1*
Library support for `char8_t`	P0482R6	9	8 (partial) 16	19.22*	10.0.1* (partial) 15.0.0*
Utility functions to implement uses-allocator construction	P0591R4	9	16	19.29 (16.10)*	15.0.0*
DR17: std::variant and std::optional should propagate copy/move triviality	P0602R4	8.3	8	19.11*	10.0.1*
DR17: A sane std::variant converting constructor	P0608R3	10	9	19.29 (16.10) 19.42	11.0.3*
std::function's move constructor should be `noexcept`	P0771R1	7.2	6	19.22*	Yes
The One Ranges Proposal	P0896R4	10	13 (partial) 15*	19.29 (16.10)*	14.0.3*
Heterogeneous lookup for unordered containers	P0919R3 P1690R1	11	12	19.23* (P0919R3) 19.25* (P1690R1)	13.0.0*
`<chrono>` `zero()`, `min()`, and `max()` should be `noexcept`	P0972R0	9	8	19.14*	10.0.1*
`constexpr` in std::pointer_traits	P1006R1	9	8	19.26*	10.0.1*
`std::assume_aligned()`	P1007R3	9* 11	15	19.28 (16.9)*	14.0.3*
Smart pointer creation with default initialization (e.g. `make_unique_for_overwrite`)	P1020R1 P1973R1	11 (unique_ptr) 12 (shared_ptr)	16	19.28 (16.9)*	15.0.0*
Misc `constexpr` bits	P1032R1	10	13	19.28 (16.8)*	13.1.6*
Remove comparison operators of `std::span`	P1085R2	10	8	19.26*	10.0.1*
Make stateful allocator propagation more consistent for `operator+(basic_string)`	P1165R1	10	15	19.26*	14.0.3*
Consistent container erasure, e.g. `std::erase(std::vector)`, or `std::erase_if(std::map)`	P1209R0 P1115R3	9 (P1209R0) 10 (P1115R3)	8 (P1209R0) 11 (P1115R3)	19.25* (P1209R0) 19.27* (P1115R3)	10.0.1* (P1209R0) 12.0.5* (P1115R3)
Standard library header units	P1502R1	11		19.29 (16.10)*
`polymorphic_allocator<>` as a vocabulary type	P0339R6	9	16	19.28 (16.9)*	15.0.0*
`std::execution::unseq`	P1001R2	9	17	19.28 (16.8)*
`std::lerp()` and `std::midpoint()`	P0811R3	9	9	19.23* (partial) 19.28 (16.8)*	11.0.3*
Usability enhancements for `std::span`	P1024R3	10	9* 14	19.26*	11.0.3*
DR17: Make `create_directory()` intuitive	P1164R1	8.3	12	19.20*	13.0.0*
`std::ssize()` and unsigned extent for `std::span`	P1227R2	10	9	19.25*	11.0.3*
Traits for (un)bounded arrays	P1357R1	9	9	19.25*	11.0.3*
`std::to_array()`	P0325R4	10	10	19.25*	12.0.0*
Efficient access to std::basic_stringbuf’s buffer	P0408R7	11	17	19.29 (16.10)*	15.0.0*
Layout-compatibility and pointer-interconvertibility traits	P0466R5	12		19.29 (16.10)**
Bit operations: `std::` `rotl()`, `rotr()`, `countl_zero()`, `countl_one()`, `countr_zero()`, `countr_one()`, `popcount()`	P0553R4	9	9	19.25** 19.28 (16.8)*	11.0.3*
Mathematical constants	P0631R8	10	11	19.25*	12.0.5*
Text formatting	P0645R10	13	14* 17	19.29 (16.10)*	15.0.0*
`std::stop_token` and `std::jthread`	P0660R10	10	17 (partial)* 20*	19.28 (16.9)*
`constexpr` std::allocator and related utilities	P0784R7	10	12	19.29 (16.10)*	13.0.0*
`constexpr` std::string	P0980R1	12	15	19.29 (16.10)* 19.30**	14.0.3*
`constexpr` std::vector	P1004R2	12	15	19.29 (16.10)* 19.30**	14.0.3*
Input range adaptors	P1035R7	10	16	19.29 (16.10)*	15.0.0*
`constexpr` std::invoke() and related utilities	P1065R2	10	12	19.28 (16.8)*	13.0.0*
Atomic waiting and notifying, `std::counting_semaphore`, `std::latch` and `std::barrier`	P1135R6	11	11	19.28 (16.8)*	13.1.6*
`std::source_location`	P1208R6	11	15* (partial) 16	19.29 (16.10)*	15.0.0*
Adding `<=>` to the standard library	P1614R2	10	14* (partial) 17* (partial) 19	19.29 (16.10)*	13.1.6* (partial)
`constexpr` default constructor of std::atomic and std::atomic_flag	P0883R2	10	13	19.26*	13.1.6*
`constexpr` for numeric algorithms	P1645R1	10	12	19.26*	13.0.0*
Safe integral comparisons	P0586R2	10	13	19.27*	13.1.6*
C++20 feature	Paper(s)	GCC libstdc++	Clang libc++	MSVC STL	Apple Clang*	IBM Open XL C/C++ for AIX*	Sun/Oracle C++*	Embarcadero C++ Builder*

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Difference between revisions of "Template:cpp/compiler support/20"

Latest revision as of 21:22, 15 September 2024

[edit] C++20 core language features

[edit] C++20 library features

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@@ Line 1: / Line 1: @@
 ===C++20 core language features===
 {{compiler support|std=c++20|
-<!-- 201703 -->
+<!--201703-->
 {{compiler_support_row
-| feature=Allow {{ls|cpp/language/lambda|Lambda capture}} {{tt|1=[=, this]}}
+|feature=Allow {{ls|cpp/language/lambda#Lambda capture}} {{tt|1=[=, this]}}
-| reference={{wg21|P0409R2}}
+|reference={{wg21|P0409R2}}
-| version=c++20-lang
+|version=c++20
-| clang={{yes|6}}
+|clang={{yes|6}}
-| cray={{yes|11.0}}
+|cray={{yes|11.0}}
-| aclang={{yes|{{aclang ver|10.0.0}}}}
+|aclang={{yes|{{aclang ver|10.0.0}}}}
-| gcc={{yes|8}}
+|gcc={{yes|8}}
-| edg={{yes|5.1}}
+|edg={{yes|5.1}}
-| icc={{yes|2021.1}}
+|icc={{yes|2021.1}}
-| msvc={{yes|{{msvc ver|2019.2}}}}
+|msvc={{yes|{{msvc ver|2019.2}}}}
-| pgi={{yes|20.7}}
+|pgi={{yes|20.7}}
-| nvcc={{yes|12.0}}
+|nvcc={{yes|12.0}}
 }}
-<!-- 201707 -->
+<!--201707-->
 {{compiler_support_row
-| feature=[[cpp/preprocessor/replace#Function-like macros|{{tt|__VA_OPT__}}]]
+|feature=[[cpp/preprocessor/replace#Function-like macros|{{tt|__VA_OPT__}}]]
-| reference={{wg21|P0306R4}}<br>{{wg21|P1042R1}}
+|reference={{wg21|P0306R4}}<br>{{wg21|P1042R1}}
-| version=c++20-lang
+|version=c++20
-| clang={{yes|9}}
+|clang={{yes|9}}
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 {{compiler_support_row
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 {{compiler_support_row
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 {{compiler_support_row
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 }}
 {{compiler_support_row
-| feature=[[cpp/language/constraints|Concepts]]
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-| msvc={{yes|{{msvc ver|2019.3}} {{popup|no requires-expression support|(partial)}}<br>{{msvc ver|19.30}}}}
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-<!-- 201711 -->
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 {{compiler_support_row
-| feature={{ls|cpp/language/lambda|Lambdas in unevaluated contexts}}
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 {{compiler_support_row
-| feature={{ls|cpp/language/operator comparison|Three-way comparison}} operator
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-| reference={{wg21|P0515R3}}
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 {{compiler_support_row
-| feature=DR: Simplifying implicit lambda capture
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-| reference={{wg21|P0588R1}}
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 {{compiler_support_row
-| feature=[[cpp/language/range-for#Syntax|init-statements for range-based for]]
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 {{compiler_support_row
-| feature=Default constructible and assignable stateless {{lt|cpp/language/lambda}}s
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 {{compiler_support_row
-| feature={{tt|const}} mismatch with defaulted copy constructor
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 {{compiler_support_row
-| feature=Access checking on specializations
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 {{compiler_support_row
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 {{compiler_support_row
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 {{compiler_support_row
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 {{compiler_support_row
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 {{compiler_support_row
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 {{compiler_support_row
-| feature=Attribute {{attr|no_unique_address}}
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 {{compiler_support_row
-| feature=Conditionally Trivial Special Member Functions
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 {{compiler_support_row
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 {{compiler_support_row
-| feature=DR: Relaxing the {{lt|cpp/language/range-for}} loop customization point finding rules
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-| reference={{wg21|P0962R1}}
+|reference={{wg21|P0962R1}}
-| version=c++20-lang
+|version=c++20
-| gcc={{yes|8}}
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-| clang={{yes|8}}
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-| cray={{yes|11.0}}
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-| aclang={{yes|{{aclang ver|11.0.0}}}}
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-| edg={{yes|5.1}}
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-| icc={{yes|2021.1}}
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-| pgi={{yes|20.7}}
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-| msvc={{yes|{{msvc ver|2019.5}}}}
+|msvc={{yes|{{msvc ver|2019.5}}}}
-| nvcc={{yes|12.0}}
+|nvcc={{yes|12.0}}
 }}
 {{compiler_support_row
-| feature=DR: Allow structured bindings to accessible members
+|feature=DR17: Allow structured bindings to accessible members
-| reference={{wg21|P0969R0}}
+|reference={{wg21|P0969R0}}
-| version=c++20-lang
+|version=c++20
-| gcc={{yes|8}}
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-| clang={{yes|8}}
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-| cray={{yes|11.0}}
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-| aclang={{yes|{{aclang ver|10.0.1}}}}
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-| edg={{yes|5.1}}
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-| icc={{yes|2021.1}}
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-| msvc={{yes|{{msvc ver|2019.1}}}}
+|msvc={{yes|{{msvc ver|2019.1}}}}
-| pgi={{yes|20.7}}
+|pgi={{yes|20.7}}
-| nvcc={{yes|12.0}}
+|nvcc={{yes|12.0}}
 }}
-<!-- 201806 -->
+<!--201806-->
 {{compiler_support_row
-| feature=[[cpp/memory/new/operator delete|Destroying {{tt|operator delete}}]]
+|feature=[[cpp/memory/new/operator delete|Destroying {{tt|operator delete}}]]
-| reference={{wg21|P0722R3}}
+|reference={{wg21|P0722R3}}
-| version=c++20-lang
+|version=c++20
-| gcc={{yes|9}}
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-| clang={{yes|6}}
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-| cray={{yes|11.0}}
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-| aclang={{yes|{{aclang ver|10.0.0}}}}
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-| edg={{yes|6.1}}
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-| msvc={{yes|{{msvc ver|2019.7}}}}
+|icc={{yes|2023.1}}
-| pgi={{yes|20.11}}
+|msvc={{yes|{{msvc ver|2019.7}}}}
-| nvcc={{yes|12.0}}
+|pgi={{yes|20.11}}
+|nvcc={{yes|12.0}}
 }}
 {{compiler_support_row
-| feature=Class types in {{ls|cpp/language/template parameters|Non-type template parameter}}s
+|feature=Class types in {{ls|cpp/language/template parameters#Non-type template parameter}}s
-| reference={{wg21|P0732R2}}
+|reference={{wg21|P0732R2}}
-| version=c++20-lang
+|version=c++20
-| gcc={{yes|9}}
+|gcc={{yes|9}}
-| clang={{maybe|12 (partial)}}
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-| aclang={{maybe|{{aclang ver|13.0.0}} (partial)}}
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-| msvc={{yes|{{popup|no proposed changes for User-defined Literals|{{msvc ver|2019.6}}(partial)}}<br>{{msvc ver|2019.9}}}}
+|msvc={{yes|{{popup|no proposed changes for User-defined Literals|{{msvc ver|2019.6}}(partial)}}<br>{{msvc ver|2019.9}}}}
-| edg={{yes|6.2}}
+|edg={{yes|6.2}}
-| nvcc={{yes|12.0}}
+|icc={{maybe|2023.1 (partial)}}
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 }}
 {{compiler_support_row
-| feature=Deprecate implicit [[cpp/language/lambda#Lambda capture|capture]] of {{tt|this}} via {{tt|1=[=]}}
+|feature=Deprecate implicit [[cpp/language/lambda#Lambda capture|capture]] of {{tt|this}} via {{tt|1=[=]}}
-| reference={{wg21|P0806R2}}
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-| version=c++20-lang
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-| gcc={{yes|9}}
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-| clang={{yes|7}}
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-| cray={{yes|11.0}}
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-| aclang={{yes|{{aclang ver|10.0.1}}}}
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-| edg={{yes|5.1}}
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-| msvc={{yes|{{msvc ver|2019.2}}}}
+|msvc={{yes|{{msvc ver|2019.2}}}}
-| pgi={{yes|20.7}}
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-| nvcc={{yes|12.0}}
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 }}
 {{compiler_support_row
-| feature={{ltt|cpp/language/explicit|explicit(bool)}}
+|feature={{ltt|cpp/language/explicit|explicit(bool)}}
-| reference={{wg21|P0892R2}}
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-| version=c++20-lang
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-| gcc={{yes|9}}
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-| clang={{yes|9}}
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-| cray={{yes|11.0}}
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-| aclang={{yes|{{aclang ver|11.0.3}}}}
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-| edg={{yes|5.1}}
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-| icc={{yes|2021.1}}
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-| msvc={{yes|{{msvc ver|2019.4}}}}
+|msvc={{yes|{{msvc ver|2019.4}}}}
-| pgi={{yes|20.7}}
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-| nvcc={{yes|12.0}}
+|nvcc={{yes|12.0}}
 }}
 {{compiler_support_row
-| feature=Integrating [[cpp/feature_test|feature-test macros]]
+|feature=Integrating [[cpp/feature_test|feature-test macros]]
-| reference={{wg21|P0941R2}}
+|reference={{wg21|P0941R2}}
-| version=c++20-lang
+|version=c++20
-| gcc={{yes|5}}
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-| clang={{yes|3.4}}
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-| cray={{yes|11.0}}
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-| aclang={{yes}}
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-| msvc={{yes|{{msvc ver|2017.8}} (partial)<br>{{msvc ver|2019}}}}
+|msvc={{yes|{{msvc ver|2017.8}} (partial)<br>{{msvc ver|2019}}}}
-| edg={{yes|5.0}}
+|edg={{yes|5.0}}
-| icc={{yes|2021.1}}
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-| pgi={{yes|20.7}}
+|pgi={{yes|20.7}}
-| nvcc={{yes|12.0}}
+|nvcc={{yes|12.0}}
 }}
 {{compiler_support_row
-| feature=Prohibit aggregates with user-declared constructors
+|feature=Prohibit aggregates with user-declared constructors
-| reference={{wg21|P1008R1}}
+|reference={{wg21|P1008R1}}
-| version=c++20-lang
+|version=c++20
-| gcc={{yes|9}}
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-| clang={{yes|8}}
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-| cray={{yes|11.0}}
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-| aclang={{yes|{{aclang ver|10.0.1}}}}
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-| msvc={{yes|{{msvc ver|2019}}}}
+|msvc={{yes|{{msvc ver|2019}}}}
-| edg={{yes|5.1}}
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-| icc={{yes|2021.1}}
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-| pgi={{yes|20.7}}
+|pgi={{yes|20.7}}
-| nvcc={{yes|12.0}}
+|nvcc={{yes|12.0}}
 }}
 {{compiler_support_row
-| feature={{tt|constexpr}} [[cpp/language/virtual|virtual function]]
+|feature={{tt|constexpr}} [[cpp/language/virtual|virtual function]]
-| reference={{wg21|P1064R0}}
+|reference={{wg21|P1064R0}}
-| version=c++20-lang
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-| gcc={{yes|9}}
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-| edg={{yes|5.1}}
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-| icc={{yes|2021.1}}
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-| clang={{yes|9}}
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-| cray={{yes|11.0}}
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-| aclang={{yes|{{aclang ver|11.0.3}}}}
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-| msvc={{yes|{{msvc ver|2019.9}}}}
+|msvc={{yes|{{msvc ver|2019.9}}}}
-| pgi={{yes|20.7}}
+|pgi={{yes|20.7}}
-| nvcc={{yes|12.0}}
+|nvcc={{yes|12.0}}
 }}
 {{compiler_support_row
-| feature=Consistency improvements for comparisons
+|feature=Consistency improvements for comparisons
-| reference={{wg21|P1120R0}}
+|reference={{wg21|P1120R0}}
-| version=c++20-lang
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-| gcc={{yes|10}}
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-| clang={{yes|8 (partial)<br>10}}
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-| cray={{yes|11.0}}
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-| aclang={{yes|{{aclang ver|12.0.0}}}}
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-| msvc={{yes|{{msvc ver|2019.2}}}}
+|msvc={{yes|{{msvc ver|2019.2}}}}
-| edg={{yes|5.1}}
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-| pgi={{yes|20.7}}
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-| nvcc={{yes|12.0}}
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 }}
-<!-- 201811 -->
+<!--201811-->
 {{compiler_support_row
-| feature={{tt|{{ls|cpp/language/types|char8_t}}}}
+|feature={{tt|{{ls|cpp/language/types#char8_t}}}}
-| reference={{wg21|P0482R6}}
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-| version=c++20-lang
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-| gcc={{yes|9}}
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-| clang={{yes|{{popup|Prior to Clang 8, this feature is not enabled by -std{{=}}c++20, but can be enabled with -fchar8_t|7}}}}
+|clang={{yes|{{popup|Prior to Clang 8, this feature is not enabled by -std{{=}}c++20, but can be enabled with -fchar8_t|7}}}}
-| cray={{yes|11.0}}
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-| aclang={{yes|{{aclang ver|10.0.0}}}}
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-| edg={{yes|5.1}}
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-| icc={{yes|2021.1}}
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-| msvc={{yes|{{msvc ver|2019.2}}}}
+|msvc={{yes|{{msvc ver|2019.2}}}}
-| pgi={{yes|20.7}}
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-| nvcc={{yes|12.0}}
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 }}
 {{compiler_support_row
-| feature={{ltf std|cpp/types/is_constant_evaluated}}
+|feature={{ltf std|cpp/types/is_constant_evaluated}}
-| reference={{wg21|P0595R2}}
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-| version=c++20-lang
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-| gcc={{yes|9}}
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-| edg={{yes|5.1}}
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-| clang={{yes|9}}
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-| cray={{yes|11.0}}
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-| aclang={{yes|{{aclang ver|11.0.3}}}}
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-| icc={{yes|19.1}}
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-| msvc={{yes|{{msvc ver|2019.5}}}}
+|msvc={{yes|{{msvc ver|2019.5}}}}
-| nvcc={{yes|12.0}}
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 }}
 {{compiler_support_row
-| feature={{tt|constexpr}} {{tt|try}}-{{tt|catch}} blocks
+|feature={{tt|constexpr}} {{tt|try}}-{{tt|catch}} blocks
-| reference={{wg21|P1002R1}}
+|reference={{wg21|P1002R1}}
-| version=c++20-lang
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-| clang={{yes|8}}
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-| cray={{yes|11.0}}
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-| aclang={{yes|{{aclang ver|10.0.1}}}}
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-| gcc={{yes|9}}
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-| edg={{yes|5.1}}
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-| msvc={{yes|{{msvc ver|2019.5}}}}
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-| pgi={{yes|20.7}}
+|msvc={{yes|{{msvc ver|2019.5}}}}
-| nvcc={{yes|12.0}}
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 }}
 {{compiler_support_row
-| feature=[[cpp/language/consteval|Immediate functions]] ({{tt|consteval}})
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-| reference={{wg21|P1073R3}}
+|reference={{wg21|P1073R3}}
-| version=c++20-lang
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-| gcc={{yes|{{popup|no consteval virtual support|10 (partial)}}<br>11}}
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-| clang={{maybe|11 (partial)<br>{{popup|P1937R2 implemented|14 (partial)}}}}
+|clang={{yes|11 (partial)<br>{{popup|P1937R2 implemented|14 (partial)}}<br>17}}
-| aclang={{maybe|{{aclang ver|11.0.3}} (partial)}}
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-| edg={{yes|5.1}}
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-| icc={{yes|2021.1}}
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-| msvc={{yes|{{popup|no constant-folding immediate invocations|{{msvc ver|2019.8}}<br>(partial)}}<br>{{msvc ver|2019.X}}}}
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-| pgi={{yes|20.7}}
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-| nvcc={{yes|12.0}}
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 }}
 {{compiler_support_row
-| feature=[[cpp/language/namespace|Nested inline namespaces]]
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-| reference={{wg21|P1094R2}}
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-| version=c++20-lang
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-| gcc={{yes|9}}
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-| clang={{yes|8}}
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-| cray={{yes|11.0}}
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-| msvc={{yes|{{msvc ver|2019.7}}}}
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-| aclang={{yes|{{aclang ver|10.0.1}}}}
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-| edg={{yes|5.1}}
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-| icc={{yes|2021.1}}
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-| pgi={{yes|20.7}}
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-| nvcc={{yes|12.0}}
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 }}
 {{compiler_support_row
-| feature=Yet another approach for [[cpp/language/template_parameters#Type template parameter|constrained]] [[cpp/language/auto|declarations]]
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-| reference={{wg21|P1141R2}}
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-| gcc={{yes|10}}
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-| edg={{yes|6.1}}
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-| version=c++20-lang
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-| msvc={{yes|{{msvc ver|2019.6}} (partial)<br>{{msvc ver|2019.9}}}}
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-| clang={{yes|10}}
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-| cray={{yes|11.0}}
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-| aclang={{yes|{{aclang ver|12.0.5}}}}
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-| pgi={{yes|20.11}}
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-| nvcc={{yes|12.0}}
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 }}
 {{compiler_support_row
-| feature=Signed integers are two's complement
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-| reference={{wg21|P1236R1}}
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-| version=c++20-lang
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-| clang={{yes|9}}
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-| cray={{yes|11.0}}
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-| edg={{n/a}}
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-| icc={{n/a}}
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-| aclang={{yes|{{aclang ver|11.0.3}}}}
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-| gcc={{yes|9}}
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-| msvc={{yes}}
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-| pgi={{yes|{{popup|signed integers have always been two's complement|yes}}}}
+|pgi={{yes|{{popup|signed integers have always been two's complement|yes}}}}
-| nvcc={{yes|12.0}}
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 }}
 {{compiler_support_row
-| feature={{ltt|cpp/language/dynamic_cast|dynamic_cast}} and polymorphic {{ltt|cpp/language/typeid|typeid}} in {{lt|cpp/language/constant expression}}s
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-| reference={{wg21|P1327R1}}
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-| version=c++20-lang
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-| edg={{yes|5.1}}
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-| icc={{yes|2021.1}}
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-| clang={{yes|9}}
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-| cray={{yes|11.0}}
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-| aclang={{yes|{{aclang ver|11.0.3}}}}
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-| gcc={{yes|10}}
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-| pgi={{yes|20.7}}
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-| msvc={{yes|{{msvc ver|2019.X}}}}
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-| nvcc={{yes|12.0}}
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 }}
 {{compiler_support_row
-| feature=Changing the active member of a union inside {{tt|constexpr}}
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-| reference={{wg21|P1330R0}}
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-| version=c++20-lang
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-| msvc={{yes|{{msvc ver|2017}}}}
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-| gcc={{yes|9}}
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-| edg={{yes|5.1}}
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-| icc={{yes|2021.1}}
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-| clang={{yes|9}}
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-| cray={{yes|11.0}}
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-| aclang={{yes|{{aclang ver|11.0.3}}}}
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-| pgi={{yes|20.7}}
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-| nvcc={{yes|12.0}}
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 }}
-<!-- 201902 -->
+<!--201902-->
 {{compiler_support_row
-| feature=[[cpp/language/coroutines|Coroutines]]
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-| reference={{wg21|P0912R5}}
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-| version=c++20-lang
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-| gcc={{yes|10}}
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-| edg={{yes|5.1}}
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-| icc={{yes|2021.1}}
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-| clang={{maybe|8 (partial)}}
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-| aclang={{maybe|{{aclang ver|10.0.1}} (partial)}}
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-| msvc={{yes|{{msvc ver|2015}} (partial)<br>{{msvc ver|2017}} (TS only)<br>{{msvc ver|2019.8}}}}
+|msvc={{yes|{{msvc ver|2015}} (partial)<br>{{msvc ver|2017}} (TS only)<br>{{msvc ver|2019.8}}}}
-| nvcc={{yes|12.0 (host code only)}}
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 }}
 {{compiler_support_row
-| feature=Parenthesized [[cpp/language/aggregate_initialization|initialization of aggregates]]
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-| reference={{wg21|P0960R3}}
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-| version=c++20-lang
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-| gcc={{yes|10}}
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-| clang={{yes|16}}
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-| edg={{yes|5.1}}
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-| icc={{yes|2021.1}}
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-| msvc={{yes|{{msvc ver|2019.8}}}}
+|msvc={{yes|{{msvc ver|2019.8}}}}
-| pgi={{yes|20.7}}
+|pgi={{yes|20.7}}
-| nvcc={{yes|12.0}}
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 }}
 {{compiler_support_row
-| feature=DR: Array size deduction in [[cpp/language/new|{{tt|new}}-expressions]]
+|feature=DR11: Array size deduction in [[cpp/language/new|{{tt|new}}-expressions]]
-| reference={{wg21|P1009R2}}
+|reference={{wg21|P1009R2}}
-| version=c++20-lang
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-| edg={{yes|5.1}}
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-| icc={{yes|2021.1}}
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-| clang={{yes|9}}
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-| cray={{yes|11.0}}
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-| msvc={{yes|{{msvc ver|2019.7}}}}
+|msvc={{yes|{{msvc ver|2019.7}}}}
-| aclang={{yes|{{aclang ver|11.0.3}}}}
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-| gcc={{yes|11}}
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 {{compiler_support_row
-| feature=[[cpp/language/modules|Modules]]
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-}} <!-- See P1502 row for stdlib header units -->
+<!--|nvcc={{no}}-->
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 {{compiler_support_row
-| feature=Stronger Unicode requirements
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-| reference={{wg21|P1041R4}}<br>{{wg21|P1139R2}}
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-| feature={{tt|1=<=> != ==}}
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 {{compiler_support_row
-| feature=DR: Explicitly defaulted functions with different exception specifications
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-| reference={{wg21|P1286R2}}
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 {{compiler_support_row
-| feature=Lambda capture and storage class specifiers of structured bindings
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-| reference={{wg21|P1091R3}}<br>{{wg21|P1381R1}}
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-<!-- 201907 -->
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 {{compiler_support_row
-| feature=Permit conversions to arrays of unknown bound
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-| reference={{wg21|P0388R4}}
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 {{compiler_support_row
-| feature={{tt|constexpr}} container operations
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-| reference={{wg21|P0784R7}}
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 {{compiler_support_row
-| feature=Deprecating some uses of [[cpp/language/cv#Notes|{{tt|volatile}}]]
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-| msvc={{yes|{{msvc ver|2019.7}}}}
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 {{compiler_support_row
-| feature={{ltt|cpp/language/constinit}}
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-| reference={{wg21|P1143R2}}
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-| version=c++20-lang
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-| msvc={{yes|{{msvc ver|2019.X}}}}
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-| nvcc={{yes|12.0}}
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-| icc={{yes|2021.7}}
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 {{compiler_support_row
-| feature=[[cpp/language/operator_other#Built-in comma operator|Deprecate comma operator in subscripts]]
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-| reference={{wg21|P1161R3}}
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-| version=c++20-lang
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 {{compiler_support_row
-| feature={{attr|nodiscard}} with message
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-| reference={{wg21|P1301R4}}
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-| version=c++20-lang
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-| edg={{yes|6.0}}
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-| msvc={{yes|{{msvc ver|2019.5}}}}
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-| pgi={{yes|20.11}}
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-| nvcc={{yes|12.0}}
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 }}
 {{compiler_support_row
-| feature=Trivial default initialization in {{tt|constexpr}} functions
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-| reference={{wg21|P1331R2}}
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-| version=c++20-lang
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 {{compiler_support_row
-| feature=Unevaluated {{tt|asm}}-declaration in {{tt|constexpr}} functions
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-| reference={{wg21|P1668R1}}
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-| version=c++20-lang
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-| nvcc={{yes|12.0}}
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-| icc={{yes|2021.7}}
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 {{compiler_support_row
-| feature={{ltt|cpp/language/enum#Using-enum-declaration|using enum}}
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-| reference={{wg21|P1099R5}}
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-| version=c++20-lang
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-| edg={{yes|6.3}}
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-| clang={{yes|13}}
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-| aclang={{yes|{{aclang ver|13.1.6}}}}
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 {{compiler_support_row
-| feature=Synthesizing {{ls|cpp/language/operator comparison|Three-way comparison}} for specified comparison category
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-| reference={{wg21|P1186R3}}
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-| version=c++20-lang
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-| msvc={{yes|{{msvc ver|2019.4}}}}
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-| pgi={{yes|20.11}}
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-| nvcc={{yes|12.0}}
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 {{compiler_support_row
-| feature=DR: {{attr|nodiscard}} for constructors
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-| reference={{wg21|P1771R1}}
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-| version=c++20-lang
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-| pgi={{yes|20.11}}
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-| nvcc={{yes|12.0}}
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 {{compiler_support_row
-| feature={{lt|cpp/language/class template argument deduction}} for alias templates
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-| reference={{wg21|P1814R0}}
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-| version=c++20-lang
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-| edg={{yes|6.5}}
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 {{compiler_support_row
-| feature={{lt|cpp/language/class template argument deduction}} for aggregates
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-| reference={{wg21|P1816R0}}<br>{{wg21|P2082R1}}
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-| version=c++20-lang
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 {{compiler_support_row
-| feature=DR: [[cpp/language/return|Implicit move]] for more local objects and rvalue references
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-| reference={{wg21|P1825R0}}
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-| version=c++20-lang
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-| gcc ={{yes|{{popup|C++20 mode only|11}}}}
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-| clang={{yes|13}}
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-| pgi={{yes|20.11}}
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-| nvcc={{yes|12.0}}
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 }}
-<!-- 201911 -->
+<!--201911-->
 {{compiler_support_row
-| feature=Allow defaulting comparisons by value
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-| reference={{wg21|P1946R0}}
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-| version=c++20-lang
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-| clang={{yes|10}}
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-| nvcc={{yes|12.0}}
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-| icc={{yes|2021.7}}
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 {{compiler_support_row
-| feature=Remove {{tt|std::weak_equality}} and {{tt|std::strong_equality}}
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-| reference={{wg21|P1959R0}}
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-| clang={{yes|10}}
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-| icc={{yes|2021.7}}
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 {{compiler_support_row
-| feature=Inconsistencies with non-type template parameters
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-| reference={{wg21|P1907R1}}
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-| version=c++20-lang
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-| aclang={{maybe|{{aclang ver|13.1.6}} (partial)}}
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-| msvc={{yes|{{msvc ver|2019.6}}}}
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-| edg={{yes|6.2}}
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-| nvcc={{yes|12.0}}
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 }}
-<!-- 202002 -->
+<!--202002-->
 {{compiler_support_row
-| feature=DR: Pseudo-destructors end object lifetimes
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-| reference={{wg21|P0593R6}}
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-| version=c++20-lang
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-| gcc={{yes|11}}
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-| edg={{n/a}}
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-| icc={{n/a}}
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-| msvc={{yes}}
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-| nvcc={{yes|12.0}}
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 {{compiler_support_row
-| feature=DR: Converting from {{tt|T*}} to {{c/core|bool}} should be considered narrowing
+|feature=DR11: Converting from {{tt|T*}} to {{c/core|bool}} should be considered narrowing
-| reference={{wg21|P1957R2}}
+|reference={{wg21|P1957R2}}
-| version=c++20-lang
+|version=c++20
-| clang={{yes|11}}
+|clang={{yes|11}}
-| cray={{yes|11.0}}
+|cray={{yes|11.0}}
-| aclang={{yes|{{aclang ver|12.0.5}}}}
+|aclang={{yes|{{aclang ver|12.0.5}}}}
-| gcc={{yes|{{popup|C++20 mode only|10}}<br>{{popup|all modes|11}}}}
+|gcc={{yes|{{popup|C++20 mode only|10}}<br>{{popup|all modes|11}}}}
-| edg={{yes|6.1}}
+|edg={{yes|6.1}}
-| msvc={{yes|{{msvc ver|2019.7}}}}
+|msvc={{yes|{{msvc ver|2019.7}}}}
-| nvcc={{yes|12.0}}
+|nvcc={{yes|12.0}}
 }}
 }}
@@ Line 925: / Line 939: @@
 ===C++20 library features===
 {{standard library support|std=c++20|
-<!-- 201707 -->
+<!--201707-->
 {{standard library support row
-| feature={{ltt|cpp/types/endian|std::endian}}
+|feature={{ltt|cpp/types/endian|std::endian}}
-| reference={{wg21|P0463R1}}
+|reference={{wg21|P0463R1}}
-| version=c++20
+|version=c++20
-| clang={{yes|7}}
+|clang={{yes|7}}
-| aclang={{yes|{{aclang ver|10.0.0}}}}
+|aclang={{yes|{{aclang ver|10.0.0}}}}
-| gcc={{yes|8}}
+|gcc={{yes|8}}
-| msvc={{yes|{{msvc ver|2019.2}}}}
+|msvc={{yes|{{msvc ver|2019.2}}}}
 }}
 {{standard library support row
-| feature=Extending {{lc|std::make_shared()}} to support arrays
+|feature=Extending {{lc|std::make_shared()}} to support arrays
-| reference={{wg21|P0674R1}}
+|reference={{wg21|P0674R1}}
-| version=c++20
+|version=c++20
-| msvc={{yes|{{msvc ver|2019.7}}}}
+|msvc={{yes|{{msvc ver|2019.7}}}}
-| gcc={{yes|12}}
+|gcc={{yes|12}}
-| clang={{yes|15}}
+|clang={{yes|15}}
-| aclang={{yes|{{aclang ver|14.0.3}}}}
+|aclang={{yes|{{aclang ver|14.0.3}}}}
 }}
-<!-- 201711 -->
+<!--201711-->
 {{standard library support row
-| feature=[[cpp/atomic/atomic#Specializations for floating-point types|Floating-point atomic]]
+|feature=[[cpp/atomic/atomic#Specializations for floating-point types|Floating-point atomic]]
-| reference={{wg21|P0020R6}}
+|reference={{wg21|P0020R6}}
-| version=c++20
+|version=c++20
-| gcc={{yes|10}}
+|gcc={{yes|10}}
-| msvc={{yes|{{msvc ver|2019.2}}}}
+|clang={{yes|18}}
+|msvc={{yes|{{msvc ver|2019.2}}}}
 }}
 {{standard library support row
-| feature=[[cpp/io/basic_syncbuf|Synchronized buffered]] ({{ltt|cpp/io/basic_osyncstream|std::basic_osyncstream}})
+|feature=[[cpp/io/basic_syncbuf|Synchronized buffered]] ({{ltt|cpp/io/basic_osyncstream|std::basic_osyncstream}})
-| reference={{wg21|P0053R7}}
+|reference={{wg21|P0053R7}}
-| version=c++20
+|version=c++20
-| gcc={{yes|11}}
+|gcc={{yes|11}}
-| msvc={{yes|{{msvc ver|2019.X}}}}
+|clang={{yes|18}}
+|msvc={{yes|{{msvc ver|2019.X}}}}
 }}
 {{standard library support row
-| feature={{tt|constexpr}} for {{header|algorithm}} and {{header|utility}}
+|feature={{tt|constexpr}} for {{header|algorithm}} and {{header|utility}}
-| reference={{wg21|P0202R3}}
+|reference={{wg21|P0202R3}}
-| version=c++20
+|version=c++20
-| gcc={{yes|10}}
+|gcc={{yes|10}}
-| clang={{yes|8 (partial)<br>12}}
+|clang={{yes|8 (partial)<br>12}}
-| aclang={{yes|{{aclang ver|10.0.1}} (partial)<br>{{aclang ver|13.0.0}}}}
+|aclang={{yes|{{aclang ver|10.0.1}} (partial)<br>{{aclang ver|13.0.0}}}}
-| msvc={{yes|{{msvc ver|2019.6}}}}
+|msvc={{yes|{{msvc ver|2019.6}}}}
 }}
 {{standard library support row
-| feature=More {{tt|constexpr}} for {{header|complex}}
+|feature=More {{tt|constexpr}} for {{header|complex}}
-| reference={{wg21|P0415R1}}
+|reference={{wg21|P0415R1}}
-| version=c++20
+|version=c++20
-| gcc={{yes|9}}
+|gcc={{yes|9}}
-| clang={{yes|7 (partial)<br>16}}
+|clang={{yes|7 (partial)<br>16}}
-| aclang={{maybe|{{aclang ver|10.0.0}} (partial)}}
+|aclang={{yes|{{aclang ver|10.0.0}} (partial)<br>{{aclang ver|15.0.0}}}}
-| msvc={{yes|{{msvc ver|2019.7}}}}
+|msvc={{yes|{{msvc ver|2019.7}}}}
 }}
 {{standard library support row
-| feature=Make {{lc|std::memory_order}} a scoped enumeration
+|feature=Make {{lc|std::memory_order}} a scoped enumeration
-| reference={{wg21|P0439R0}}
+|reference={{wg21|P0439R0}}
-| version=c++20
+|version=c++20
-| gcc={{yes|9}}
+|gcc={{yes|9}}
-| clang={{yes|9}}
+|clang={{yes|9}}
-| aclang={{yes|{{aclang ver|11.0.3}}}}
+|aclang={{yes|{{aclang ver|11.0.3}}}}
-| msvc={{yes|{{msvc ver|2019.5}}}}
+|msvc={{yes|{{msvc ver|2019.5}}}}
 }}
 {{standard library support row
-| feature=[[cpp/string/basic_string|String]] [[cpp/string/basic_string/starts_with|prefix]] and [[cpp/string/basic_string/ends_with|suffix]] checking: {{ltt|cpp/string/basic_string/starts_with|string}}{{ltt|cpp/string/basic_string_view/starts_with|(_view)}}{{ltt|cpp/string/basic_string/starts_with|::starts_with}}/{{ltt|cpp/string/basic_string_view/ends_with|ends_with}}
+|feature=[[cpp/string/basic_string|String]] [[cpp/string/basic_string/starts_with|prefix]] and [[cpp/string/basic_string/ends_with|suffix]] checking: {{ltt|cpp/string/basic_string/starts_with|string}}{{ltt|cpp/string/basic_string_view/starts_with|(_view)}}{{ltt|cpp/string/basic_string/starts_with|::starts_with}}/{{ltt|cpp/string/basic_string_view/ends_with|ends_with}}
-| reference={{wg21|P0457R2}}
+|reference={{wg21|P0457R2}}
-| version=c++20
+|version=c++20
-| gcc={{yes|9}}
+|gcc={{yes|9}}
-| clang={{yes|6}}
+|clang={{yes|6}}
-| aclang={{yes|{{aclang ver|10.0.0}}}}
+|aclang={{yes|{{aclang ver|10.0.0}}}}
-| msvc={{yes|{{msvc ver|2019.1}}}}
+|msvc={{yes|{{msvc ver|2019.1}}}}
 }}
 {{standard library support row
-| feature=Library support for [[cpp/language/operator comparison#Three-way comparison|{{tt|1=operator<=>}}]] {{header|compare}}
+|feature=Library support for [[cpp/language/operator comparison#Three-way comparison|{{tt|1=operator<=>}}]] {{header|compare}}
-| reference={{wg21|P0768R1}}
+|reference={{wg21|P0768R1}}
-| version=c++20
+|version=c++20
-| gcc={{yes|10}}
+|gcc={{yes|10}}
-| clang={{yes|7 (partial)<br>12}}
+|clang={{yes|7 (partial)<br>{{popup|missing [alg.three.way]|12 (partial)}}<br>17}}
-| aclang={{yes|{{aclang ver|13.0.0}}}}
+|aclang={{yes|{{aclang ver|13.0.0}}}}
-| msvc={{yes|{{msvc ver|2019}} (partial)<br>{{msvc ver|2019.9}}}}
+|msvc={{yes|{{msvc ver|2019}} (partial)<br>{{msvc ver|2019.9}}}}
 }}
 {{standard library support row
-| feature={{ltt|cpp/types/remove_cvref|std::remove_cvref}}
+|feature={{ltt|cpp/types/remove_cvref|std::remove_cvref}}
-| reference={{wg21|P0550R2}}
+|reference={{wg21|P0550R2}}
-| version=c++20
+|version=c++20
-| clang={{yes|6}}
+|clang={{yes|6}}
-| aclang={{yes|{{aclang ver|10.0.0}}}}
+|aclang={{yes|{{aclang ver|10.0.0}}}}
-| gcc={{yes|9}}
+|gcc={{yes|9}}
-| msvc={{yes|{{msvc ver|2019}}}}
+|msvc={{yes|{{msvc ver|2019}}}}
 }}
 {{standard library support row
-| feature={{attr|nodiscard}} in the [[cpp/language/attributes/nodiscard#Standard library|standard library]]
+|feature={{attr|nodiscard}} in the [[cpp/language/attributes/nodiscard#Standard library|standard library]]
-| reference={{wg21|P0600R1}}
+|reference={{wg21|P0600R1}}
-| version=c++20
+|version=c++20
-| gcc={{yes|9}}
+|gcc={{yes|9}}
-| clang={{yes|7 (partial)<br>16}}
+|clang={{yes|7 (partial)<br>16}}
-| aclang={{maybe|{{aclang ver|10.0.0}} (partial)}}
+|aclang={{yes|{{aclang ver|10.0.0}} (partial)<br>{{aclang ver|15.0.0}}}}
-| msvc={{yes|{{msvc ver|2017.6}} (partial)<br>{{msvc ver|2019.2}}}}
+|msvc={{yes|{{msvc ver|2017.6}} (partial)<br>{{msvc ver|2019.2}}}}
 }}
 {{standard library support row
-| feature=Using {{tt|std::move}} in [[cpp/algorithm#Numeric_operations|numeric algorithms]]
+|feature=Using {{tt|std::move}} in [[cpp/algorithm#Numeric_operations|numeric algorithms]]
-| reference={{wg21|P0616R0}}
+|reference={{wg21|P0616R0}}
-| version=c++20
+|version=c++20
-| gcc={{yes|9}}
+|gcc={{yes|9}}
-| clang={{yes|12}}
+|clang={{yes|12}}
-| aclang={{yes|{{aclang ver|13.0.0}}}}
+|aclang={{yes|{{aclang ver|13.0.0}}}}
-| msvc={{yes|{{msvc ver|2019.3}}}}
+|msvc={{yes|{{msvc ver|2019.3}}}}
 }}
 {{standard library support row
-| feature=[[cpp/memory/to_address|Utility]] to convert a pointer to a raw pointer
+|feature=[[cpp/memory/to_address|Utility]] to convert a pointer to a raw pointer
-| reference={{wg21|P0653R2}}
+|reference={{wg21|P0653R2}}
-| version=c++20
+|version=c++20
-| clang={{yes|6}}
+|clang={{yes|6}}
-| aclang={{yes}}
+|aclang={{yes}}
-| gcc={{yes|8}}
+|gcc={{yes|8}}
-| msvc={{yes|{{msvc ver|2019.2}}}}
+|msvc={{yes|{{msvc ver|2019.2}}}}
 }}
 {{standard library support row
-| feature=Atomic {{ltt|cpp/memory/shared_ptr/atomic2|std::shared_ptr}} and {{ltt|cpp/memory/weak_ptr/atomic2|std::weak_ptr}}
+|feature=Atomic {{ltt|cpp/memory/shared_ptr/atomic2|std::shared_ptr}} and {{ltt|cpp/memory/weak_ptr/atomic2|std::weak_ptr}}
-| reference={{wg21|P0718R2}}
+|reference={{wg21|P0718R2}}
-| version=c++20
+|version=c++20
-| msvc={{yes|{{msvc ver|2019.7}}}}
+|msvc={{yes|{{msvc ver|2019.7}}}}
-| gcc={{yes|12}}
+|gcc={{yes|12}}
 }}
-<!-- 201803 -->
+<!--201803-->
 {{standard library support row
-| feature={{ltt|cpp/container/span|std::span}}
+|feature={{ltt|cpp/container/span|std::span}}
-| reference={{wg21|P0122R7}}
+|reference={{wg21|P0122R7}}
-| version=c++20
+|version=c++20
-| gcc={{yes|10}}
+|gcc={{yes|10}}
-| clang={{yes|7}}
+|clang={{yes|7}}
-| aclang={{yes|{{aclang ver|10.0.0}}}}
+|aclang={{yes|{{aclang ver|10.0.0}}}}
-| msvc={{yes|{{msvc ver|2019.6}}}}
+|msvc={{yes|{{msvc ver|2019.6}}}}
 }}
 {{standard library support row
-| feature=[[cpp/chrono#Calendar|Calendar]] and [[cpp/chrono#Time zone|timezone]]
+|feature=[[cpp/chrono#Calendar|Calendar]] and [[cpp/chrono#Time zone|timezone]]
-| reference={{wg21|P0355R7}}
+|reference={{wg21|P0355R7}}
-| version=c++20
+|version=c++20
-| gcc={{maybe|{{popup|missing timezones and UTC time|11 (partial)}}<br>{{popup|missing parse and from_stream|13 (partial)}}}}
+|gcc={{yes|{{popup|missing timezones and UTC time|11 (partial)}}<br>{{popup|missing parse and from_stream|13 (partial)}}<br>14}}
-| clang={{maybe|7 (partial)}}
+|clang={{maybe|7 (partial)<br>{{popup|locate_zone() and current_zone() implemented|19 ([https://libcxx.llvm.org/Status/Cxx20.html#note-p0355 partial])}}}}
-| aclang={{maybe|{{aclang ver|10.0.0}} (partial)}}
+|aclang={{maybe|{{aclang ver|10.0.0}} (partial)}}
-| msvc={{yes|{{msvc ver|2019.X}}}}
+|msvc={{yes|{{msvc ver|2019.X}}}}
 }}
 {{standard library support row
-| feature={{header|version}}
+|feature={{header|version}}
-| reference={{wg21|P0754R2}}
+|reference={{wg21|P0754R2}}
-| version=c++20
+|version=c++20
-| clang={{yes|7}}
+|clang={{yes|7}}
-| aclang={{yes|{{aclang ver|10.0.0}}}}
+|aclang={{yes|{{aclang ver|10.0.0}}}}
-| gcc={{yes|9}}
+|gcc={{yes|9}}
-| msvc={{yes|{{msvc ver|2019.2}}}}
+|msvc={{yes|{{msvc ver|2019.2}}}}
 }}
 {{standard library support row
-| feature=Comparing unordered containers
+|feature=Comparing unordered containers
-| reference={{wg21|P0809R0}}
+|reference={{wg21|P0809R0}}
-| version=c++20
+|version=c++20
-| clang={{yes}}
+|clang={{yes}}
-| aclang={{yes}}
+|aclang={{yes}}
-| msvc={{yes|{{msvc ver|2010}}}}
+|msvc={{yes|{{msvc ver|2010}}}}
-| gcc={{yes}}
+|gcc={{yes}}
 }}
 {{standard library support row
-| feature={{named req|ConstexprIterator}} requirements
+|feature={{named req|ConstexprIterator}} requirements
-| reference={{wg21|P0858R0}}
+|reference={{wg21|P0858R0}}
-| version=c++20
+|version=c++20
-| gcc={{yes|9}}
+|gcc={{yes|9}}
-| msvc={{yes|{{msvc ver|2017.3}}}}
+|msvc={{yes|{{msvc ver|2017.3}}}}
-| clang={{yes|12}}
+|clang={{yes|12}}
-| aclang={{yes|{{aclang ver|13.0.0}}}}
+|aclang={{yes|{{aclang ver|13.0.0}}}}
 }}
 {{standard library support row
-| feature={{lc|std::basic_string::reserve()}} should not shrink
+|feature={{lc|std::basic_string::reserve()}} should not shrink
-| reference={{wg21|P0966R1}}
+|reference={{wg21|P0966R1}}
-| version=c++20
+|version=c++20
-| clang={{yes|8}}
+|clang={{yes|8}}
-| aclang={{yes|{{aclang ver|10.0.1}}}}
+|aclang={{yes|{{aclang ver|10.0.1}}}}
-| msvc={{yes|{{msvc ver|2019.5}}}}
+|msvc={{yes|{{msvc ver|2019.5}}}}
-| gcc={{yes|11}}
+|gcc={{yes|11}}
 }}
-<!-- 201806 -->
+<!--201806-->
 {{standard library support row
-| feature=[[cpp/atomic/atomic/compare_exchange|Atomic Compare-And-Exchange]] with padding bits
+|feature=[[cpp/atomic/atomic/compare_exchange|Atomic Compare-And-Exchange]] with padding bits
-| reference={{wg21|P0528R3}}
+|reference={{wg21|P0528R3}}
-| version=c++20
+|version=c++20
-| msvc={{yes|{{msvc ver|2019.8}}}}
+|msvc={{yes|{{msvc ver|2019.8}}}}
-| gcc={{yes|13}}
+|gcc={{yes|13}}
 }}
 {{standard library support row
-| feature={{ltt|cpp/atomic/atomic_ref|std::atomic_ref}}
+|feature={{ltt|cpp/atomic/atomic_ref|std::atomic_ref}}
-| reference={{wg21|P0019R8}}
+|reference={{wg21|P0019R8}}
-| version=c++20
+|version=c++20
-| gcc={{yes|10}}
+|gcc={{yes|10}}
-| msvc={{yes|{{msvc ver|2019.8}}}}
+|clang={{yes|19}}
+|msvc={{yes|{{msvc ver|2019.8}}}}
 }}
 {{standard library support row
-| feature={{tt|contains()}} member function of associative containers, e.g. {{ltf|cpp/container/map/contains|std::map::contains}}
+|feature={{tt|contains()}} member function of associative containers, e.g. {{ltf|cpp/container/map/contains|std::map::contains}}
-| reference={{wg21|P0458R2}}
+|reference={{wg21|P0458R2}}
-| version=c++20
+|version=c++20
-| gcc={{yes|9}}
+|gcc={{yes|9}}
-| clang={{yes|13}}
+|clang={{yes|13}}
-| aclang={{yes|{{aclang ver|13.1.6}}}}
+|aclang={{yes|{{aclang ver|13.1.6}}}}
-| msvc={{yes|{{msvc ver|2019.1}}}}
+|msvc={{yes|{{msvc ver|2019.1}}}}
 }}
 {{standard library support row
-| feature=DR11: Guaranteed copy elision for [[cpp/memory/scoped_allocator_adaptor/construct|piecewise construction]]
+|feature=DR11: Guaranteed copy elision for [[cpp/memory/scoped_allocator_adaptor/construct|piecewise construction]]
-| reference={{wg21|P0475R1}}
+|reference={{wg21|P0475R1}}
-| version=c++20
+|version=c++20
-| gcc={{yes|9}}
+|gcc={{yes|9}}
-| clang={{yes}}
+|clang={{yes}}
-| aclang={{yes}}
+|aclang={{yes}}
-| msvc={{yes|{{msvc ver|2019.X}}}}
+|msvc={{yes|{{msvc ver|2019.X}}}}
 }}
 {{standard library support row
-| feature={{ltf|cpp/numeric/bit_cast|std::bit_cast}}
+|feature={{ltf|cpp/numeric/bit_cast|std::bit_cast}}
-| reference={{wg21|P0476R2}}
+|reference={{wg21|P0476R2}}
-| version=c++20
+|version=c++20
-| msvc={{yes|{{msvc ver|2019.7}}}}
+|msvc={{yes|{{msvc ver|2019.7}}}}
-| gcc={{yes|11}}
+|gcc={{yes|11}}
-| clang={{yes|14}}
+|clang={{yes|14}}
-| aclang={{yes|{{aclang ver|14.0.3}}}}
+|aclang={{yes|{{aclang ver|14.0.3}}}}
 }}
 {{standard library support row
-| feature=[[cpp/header/bit|Integral power-of-2 operations]]:
+|feature=[[cpp/header/bit|Integral power-of-2 operations]]:
 {{ltf|cpp/numeric/bit_ceil|std::bit_ceil}},
 {{ltf|cpp/numeric/bit_floor|std::bit_floor}},
 {{ltf|cpp/numeric/bit_width|std::bit_width}},
 {{ltf|cpp/numeric/has_single_bit|std::has_single_bit}}
-| reference={{wg21|P0556R3}} {{wg21|P1956R1}}
+|reference={{wg21|P0556R3}} {{wg21|P1956R1}}
-| version=c++20
+|version=c++20
-| gcc={{yes|9<br>(P0556R3)<br>10 (P1956R1)}}
+|gcc={{yes|9<br>(P0556R3)<br>10 (P1956R1)}}
-| msvc={{yes|{{msvc ver|2019.5}} (P0556R3){{popup|with Clang}}<br>{{msvc ver|2019.7}} (P1956R1){{popup|with Clang}}<br>{{msvc ver|2019.8}}}}
+|msvc={{yes|{{msvc ver|2019.5}} (P0556R3){{popup|with Clang}}<br>{{msvc ver|2019.7}} (P1956R1){{popup|with Clang}}<br>{{msvc ver|2019.8}}}}
-| clang={{yes|9 (P0556R3)<br>12 (P1956R1)}}
+|clang={{yes|9 (P0556R3)<br>12 (P1956R1)}}
-| aclang={{yes|{{aclang ver|11.0.3}} (P0556R3)<br>{{aclang ver|13.0.0}} (P1956R1)}}
+|aclang={{yes|{{aclang ver|11.0.3}} (P0556R3)<br>{{aclang ver|13.0.0}} (P1956R1)}}
 }}
 {{standard library support row
-| feature=Improving the return value of erase-like algorithms
+|feature=Improving the return value of erase-like algorithms
-| reference={{wg21|P0646R1}}
+|reference={{wg21|P0646R1}}
-| version=c++20
+|version=c++20
-| gcc={{yes|9}}
+|gcc={{yes|9}}
-| msvc={{yes|{{msvc ver|2019.1}}}}
+|msvc={{yes|{{msvc ver|2019.1}}}}
-| clang={{yes|10}}
+|clang={{yes|10}}
-| aclang={{yes|{{aclang ver|12.0.0}}}}
+|aclang={{yes|{{aclang ver|12.0.0}}}}
 }}
 {{standard library support row
-| feature={{ltt|cpp/memory/new/destroying_delete_t|std::destroying_delete}}
+|feature={{ltt|cpp/memory/new/destroying_delete_t|std::destroying_delete}}
-| reference={{wg21|P0722R3}}
+|reference={{wg21|P0722R3}}
-| version=c++20
+|version=c++20
-| gcc={{yes|9}}
+|gcc={{yes|9}}
-| clang={{yes|9}}
+|clang={{yes|9}}
-| aclang={{yes|{{aclang ver|11.0.3}}}}
+|aclang={{yes|{{aclang ver|11.0.3}}}}
-| msvc={{yes|{{msvc ver|2019.7}}}}
+|msvc={{yes|{{msvc ver|2019.7}}}}
 }}
 {{standard library support row
-| feature={{ltt|cpp/types/is_convertible|std::is_nothrow_convertible}}
+|feature={{ltt|cpp/types/is_convertible|std::is_nothrow_convertible}}
-| reference={{wg21|P0758R1}}
+|reference={{wg21|P0758R1}}
-| version=c++20
+|version=c++20
-| clang={{yes|9}}
+|clang={{yes|9}}
-| aclang={{yes|{{aclang ver|11.0.3}}}}
+|aclang={{yes|{{aclang ver|11.0.3}}}}
-| gcc={{yes|9}}
+|gcc={{yes|9}}
-| msvc={{yes|{{msvc ver|2019.3}}}}
+|msvc={{yes|{{msvc ver|2019.3}}}}
 }}
 {{standard library support row
-| feature=Add {{ltt|cpp/algorithm/shift|std::shift_left/right}} to {{header|algorithm}}
+|feature=Add {{ltt|cpp/algorithm/shift|std::shift_left/right}} to {{header|algorithm}}
-| reference={{wg21|P0769R2}}
+|reference={{wg21|P0769R2}}
-| version=c++20
+|version=c++20
-| gcc={{yes|10}}
+|gcc={{yes|10}}
-| clang={{yes|12}}
+|clang={{yes|12}}
-| aclang={{yes|{{aclang ver|13.0.0}}}}
+|aclang={{yes|{{aclang ver|13.0.0}}}}
-| msvc={{yes|{{msvc ver|2019.1}}}}
+|msvc={{yes|{{msvc ver|2019.1}}}}
 }}
 {{standard library support row|
-| feature=Constexpr for {{lc|std::swap()}} and {{tt|swap}} related functions
+|feature=Constexpr for {{lc|std::swap()}} and {{tt|swap}} related functions
-| reference={{wg21|P0879R0}}
+|reference={{wg21|P0879R0}}
-| version=c++20
+|version=c++20
-| gcc={{yes|10}}
+|gcc={{yes|10}}
-| clang={{yes|13}}
+|clang={{yes|13}}
-| aclang={{yes|{{aclang ver|13.1.6}}}}
+|aclang={{yes|{{aclang ver|13.1.6}}}}
-| msvc={{yes|{{msvc ver|2019.6}}}}
+|msvc={{yes|{{msvc ver|2019.6}}}}
 }}
 {{standard library support row
-| feature={{ltt|cpp/types/type_identity|std::type_identity}}
+|feature={{ltt|cpp/types/type_identity|std::type_identity}}
-| reference={{wg21|P0887R1}}
+|reference={{wg21|P0887R1}}
-| version=c++20
+|version=c++20
-| clang={{yes|8}}
+|clang={{yes|8}}
-| aclang={{yes|{{aclang ver|10.0.1}}}}
+|aclang={{yes|{{aclang ver|10.0.1}}}}
-| gcc={{yes|9}}
+|gcc={{yes|9}}
-| msvc={{yes|{{msvc ver|2019.1}}}}
+|msvc={{yes|{{msvc ver|2019.1}}}}
 }}
 {{standard library support row
-| feature=[[cpp/concepts|Concepts library]]
+|feature=[[cpp/concepts|Concepts library]]
-| reference={{wg21|P0898R3}}
+|reference={{wg21|P0898R3}}
-| version=c++20
+|version=c++20
-| clang={{yes|13}}
+|clang={{yes|13}}
-| aclang={{yes|{{aclang ver|13.1.6}}}}
+|aclang={{yes|{{aclang ver|13.1.6}}}}
-| gcc={{yes|10}}
+|gcc={{yes|10}}
-| msvc={{yes|{{msvc ver|2019.3}}}}
+|msvc={{yes|{{msvc ver|2019.3}}}}
 }}
 {{standard library support row
-| feature={{tt|constexpr}} [[cpp/container/array/operator cmp|comparison operators]] for {{lc|std::array}}
+|feature={{tt|constexpr}} [[cpp/container/array/operator cmp|comparison operators]] for {{lc|std::array}}
-| reference={{wg21|P1023R0}}
+|reference={{wg21|P1023R0}}
-| version=c++20
+|version=c++20
-| gcc={{yes|10}}
+|gcc={{yes|10}}
-| clang={{yes|8}}
+|clang={{yes|8}}
-| aclang={{yes|{{aclang ver|10.0.1}}}}
+|aclang={{yes|{{aclang ver|10.0.1}}}}
-| msvc={{yes|{{msvc ver|2019.7}}}}
+|msvc={{yes|{{msvc ver|2019.7}}}}
 }}
-<!-- 201811 -->
+<!--201811-->
 {{standard library support row
-| feature=[[cpp/utility/functional/unwrap_reference|{{tt|std::unwrap_ref_decay}} and {{tt|std::unwrap_reference}}]]
+|feature=[[cpp/utility/functional/unwrap_reference|{{tt|std::unwrap_ref_decay}} and {{tt|std::unwrap_reference}}]]
-| reference={{wg21|P0318R1}}
+|reference={{wg21|P0318R1}}
-| version=c++20
+|version=c++20
-| gcc={{yes|9}}
+|gcc={{yes|9}}
-| clang={{yes|8}}
+|clang={{yes|8}}
-| aclang={{yes|{{aclang ver|10.0.1}}}}
+|aclang={{yes|{{aclang ver|10.0.1}}}}
-| msvc={{yes|{{msvc ver|2019.1}}}}
+|msvc={{yes|{{msvc ver|2019.1}}}}
 }}
 {{standard library support row
-| feature={{ltf|cpp/utility/functional/bind_front|std::bind_front}}
+|feature={{ltf|cpp/utility/functional/bind_front|std::bind_front}}
-| reference={{wg21|P0356R5}}
+|reference={{wg21|P0356R5}}
-| version=c++20
+|version=c++20
-| gcc={{yes|9}}
+|gcc={{yes|9}}
-| clang={{yes|13}}
+|clang={{yes|13}}
-| aclang={{yes|{{aclang ver|13.1.6}}}}
+|aclang={{yes|{{aclang ver|13.1.6}}}}
-| msvc={{yes|{{msvc ver|2019.5}}}}
+|msvc={{yes|{{msvc ver|2019.5}}}}
 }}
 {{standard library support row
-| feature={{lc|std::reference_wrapper}} for incomplete types
+|feature={{lc|std::reference_wrapper}} for incomplete types
-| reference={{wg21|P0357R3}}
+|reference={{wg21|P0357R3}}
-| version=c++20
+|version=c++20
-| clang={{yes|8}}
+|clang={{yes|8}}
-| aclang={{yes|{{aclang ver|10.0.1}}}}
+|aclang={{yes|{{aclang ver|10.0.1}}}}
-| gcc={{yes|9}}
+|gcc={{yes|9}}
-| msvc={{yes|{{msvc ver|2019.6}}}}
+|msvc={{yes|{{msvc ver|2019.6}}}}
 }}
 {{standard library support row
-| feature=Fixing {{ltt|cpp/io/basic_istream/operator_gtgt2|operator>>(basic_istream&, CharT*)}}
+|feature=Fixing {{ltt|cpp/io/basic_istream/operator_gtgt2|operator>>(basic_istream&, CharT*)}}
-| reference={{wg21|P0487R1}}
+|reference={{wg21|P0487R1}}
-| version=c++20
+|version=c++20
-| clang={{yes|8}}
+|clang={{yes|8}}
-| aclang={{yes|{{aclang ver|10.0.1}}}}
+|aclang={{yes|{{aclang ver|10.0.1}}}}
-| msvc={{yes|{{msvc ver|2019.3}}}}
+|msvc={{yes|{{msvc ver|2019.3}}}}
-| gcc={{yes|11}}
+|gcc={{yes|11}}
 }}
 {{standard library support row
-| feature=Library support for [[cpp/language/types#char8_t|{{tt|char8_t}}]]
+|feature=Library support for [[cpp/language/types#char8_t|{{tt|char8_t}}]]
-| reference={{wg21|P0482R6}}
+|reference={{wg21|P0482R6}}
-| version=c++20
+|version=c++20
-| clang={{yes|8 (partial)<br>16}}
+|clang={{yes|8 (partial)<br>16}}
-| aclang={{maybe|{{aclang ver|10.0.1}} (partial)}}
+|aclang={{yes|{{aclang ver|10.0.1}} (partial)<br>{{aclang ver|15.0.0}}}}
-| gcc={{yes|9}}
+|gcc={{yes|9}}
-| msvc={{yes|{{msvc ver|2019.2}}}}
+|msvc={{yes|{{msvc ver|2019.2}}}}
 }}
 {{standard library support row
-| feature=[[cpp/memory/uses_allocator_construction_args|Utility functions]] to implement [[cpp/memory/make_obj_using_allocator|uses-allocator]] [[cpp/memory/uninitialized_construct_using_allocator|construction]]
+|feature=[[cpp/memory/uses_allocator_construction_args|Utility functions]] to implement [[cpp/memory/make_obj_using_allocator|uses-allocator]] [[cpp/memory/uninitialized_construct_using_allocator|construction]]
-| reference={{wg21|P0591R4}}
+|reference={{wg21|P0591R4}}
-| version=c++20
+|version=c++20
-| gcc={{yes|9}}
+|gcc={{yes|9}}
-| clang={{yes|16}}
+|clang={{yes|16}}
-| msvc={{yes|{{msvc ver|2019.X}}}}
+|msvc={{yes|{{msvc ver|2019.X}}}}
+|aclang={{yes|{{aclang ver|15.0.0}}}}
 }}
 {{standard library support row
-| feature=DR17: {{lc|std::variant}} and {{lc|std::optional}} should propagate copy/move triviality
+|feature=DR17: {{lc|std::variant}} and {{lc|std::optional}} should propagate copy/move triviality
-| reference={{wg21|P0602R4}}
+|reference={{wg21|P0602R4}}
-| version=c++20
+|version=c++20
-| msvc={{yes|{{msvc ver|2017.3}}}}
+|msvc={{yes|{{msvc ver|2017.3}}}}
-| clang={{yes|8}}
+|clang={{yes|8}}
-| aclang={{yes|{{aclang ver|10.0.1}}}}
+|aclang={{yes|{{aclang ver|10.0.1}}}}
-| gcc={{yes|8.3}}
+|gcc={{yes|8.3}}
 }}
 {{standard library support row
-| feature=A sane {{lc|std::variant}} converting constructor
+|feature=DR17: A sane {{lc|std::variant}} converting constructor
-| reference={{wg21|P0608R3}}
+|reference={{wg21|P0608R3}}
-| version=c++20
+|version=c++20
-| gcc={{yes|10}}
+|gcc={{yes|10}}
-| clang={{yes|9}}
+|clang={{yes|9}}
-| aclang={{yes|{{aclang ver|11.0.3}}}}
+|aclang={{yes|{{aclang ver|11.0.3}}}}
-| msvc={{yes|{{msvc ver|2019.X}}}}
+|msvc={{yes|{{popup|not implemented in C++17 mode|{{msvc ver|2019.X}}}}<br>{{popup|implemented in C++17 mode|{{msvc ver|2022.12}}}}}}
 }}
 {{standard library support row
-| feature={{lc|std::function}}'s move constructor should be {{ltt|cpp/language/noexcept}}
+|feature={{lc|std::function}}'s move constructor should be {{ltt|cpp/language/noexcept}}
-| reference={{wg21|P0771R1}}
+|reference={{wg21|P0771R1}}
-| version=c++20
+|version=c++20
-| clang={{yes|6}}
+|clang={{yes|6}}
-| aclang={{yes}}
+|aclang={{yes}}
-| msvc={{yes|{{msvc ver|2019.2}}}}
+|msvc={{yes|{{msvc ver|2019.2}}}}
-| gcc={{yes|7.2}}
+|gcc={{yes|7.2}}
 }}
 {{standard library support row
-| feature=The [[cpp/iterator|One]] [[cpp/ranges|Ranges]] [[cpp/algorithm/ranges|Proposal]]
+|feature=The [[cpp/iterator|One]] [[cpp/ranges|Ranges]] [[cpp/algorithm/ranges|Proposal]]
-| reference={{wg21|P0896R4}}
+|reference={{wg21|P0896R4}}
-| version=c++20
+|version=c++20
-| gcc={{yes|10}}
+|gcc={{yes|10}}
-| clang={{yes|13 (partial)<br>{{popup|Prior to libc++ 16, this feature is considered experimental and the -fexperimental-library compiler flag is required|15}}}}
+|clang={{yes|13 (partial)<br>{{popup|Prior to libc++ 16, this feature is considered experimental and the -fexperimental-library compiler flag is required|15}}}}
-| msvc={{yes|{{msvc ver|2019.X}}}}
+|msvc={{yes|{{msvc ver|2019.X}}}}
-| aclang={{yes|{{aclang ver|14.0.3}}}}
+|aclang={{yes|{{aclang ver|14.0.3}}}}
 }}
 {{standard library support row
-| feature=Heterogeneous lookup for [[cpp/container#Unordered associative containers|unordered containers]]
+|feature=Heterogeneous lookup for [[cpp/container#Unordered associative containers|unordered containers]]
-| reference={{wg21|P0919R3}} {{wg21|P1690R1}}
+|reference={{wg21|P0919R3}} {{wg21|P1690R1}}
-| version=c++20
+|version=c++20
-| clang={{yes|12}}
+|clang={{yes|12}}
-| aclang={{yes|{{aclang ver|13.0.0}}}}
+|aclang={{yes|{{aclang ver|13.0.0}}}}
-| msvc={{yes|{{msvc ver|2019.3}} (P0919R3)<br>{{msvc ver|2019.5}} (P1690R1)}}
+|msvc={{yes|{{msvc ver|2019.3}} (P0919R3)<br>{{msvc ver|2019.5}} (P1690R1)}}
-| gcc={{yes|11}}
+|gcc={{yes|11}}
 }}
 {{standard library support row
-| feature={{header|chrono}} {{tt|zero()}}, {{tt|min()}}, and {{tt|max()}} should be {{ltt|cpp/language/noexcept}}
+|feature={{header|chrono}} {{tt|zero()}}, {{tt|min()}}, and {{tt|max()}} should be {{ltt|cpp/language/noexcept}}
-| reference={{wg21|P0972R0}}
+|reference={{wg21|P0972R0}}
-| version=c++20
+|version=c++20
-| clang={{yes|8}}
+|clang={{yes|8}}
-| aclang={{yes|{{aclang ver|10.0.1}}}}
+|aclang={{yes|{{aclang ver|10.0.1}}}}
-| msvc={{yes|{{msvc ver|2017.7}}}}
+|msvc={{yes|{{msvc ver|2017.7}}}}
-| gcc={{yes|9}}
+|gcc={{yes|9}}
 }}
 {{standard library support row
-| feature={{tt|constexpr}} in {{lc|std::pointer_traits}}
+|feature={{tt|constexpr}} in {{lc|std::pointer_traits}}
-| reference={{wg21|P1006R1}}
+|reference={{wg21|P1006R1}}
-| version=c++20
+|version=c++20
-| gcc={{yes|9}}
+|gcc={{yes|9}}
-| clang={{yes|8}}
+|clang={{yes|8}}
-| aclang={{yes|{{aclang ver|10.0.1}}}}
+|aclang={{yes|{{aclang ver|10.0.1}}}}
-| msvc={{yes|{{msvc ver|2019.6}}}}
+|msvc={{yes|{{msvc ver|2019.6}}}}
 }}
 {{standard library support row
-| feature={{ltf|cpp/memory/assume_aligned|std::assume_aligned}}
+|feature={{ltf|cpp/memory/assume_aligned|std::assume_aligned}}
-| reference={{wg21|P1007R3}}
+|reference={{wg21|P1007R3}}
-| version=c++20
+|version=c++20
-| gcc={{yes|{{popup|not constexpr until 9.4 and 10.3|9}}<br>11}}
+|gcc={{yes|{{popup|not constexpr until 9.4 and 10.3|9}}<br>11}}
-| msvc={{yes|{{msvc ver|2019.9}}}}
+|msvc={{yes|{{msvc ver|2019.9}}}}
-| clang={{yes|15}}
+|clang={{yes|15}}
-| aclang={{yes|{{aclang ver|14.0.3}}}}
+|aclang={{yes|{{aclang ver|14.0.3}}}}
 }}
 {{standard library support row
-| feature=Smart pointer creation with default initialization (e.g. {{ltt|cpp/memory/unique_ptr/make_unique|make_unique_for_overwrite}})
+|feature=Smart pointer creation with default initialization (e.g. {{ltt|cpp/memory/unique_ptr/make_unique|make_unique_for_overwrite}})
-| reference={{wg21|P1020R1}}<br>{{wg21|P1973R1}}
+|reference={{wg21|P1020R1}}<br>{{wg21|P1973R1}}
-| version=c++20
+|version=c++20
-| msvc={{yes|{{msvc ver|2019.9}}}}
+|msvc={{yes|{{msvc ver|2019.9}}}}
-| gcc={{yes|11 (unique_ptr)<br>12 (shared_ptr)}}
+|gcc={{yes|11 (unique_ptr)<br>12 (shared_ptr)}}
-| clang={{yes|16}}
+|clang={{yes|16}}
+|aclang={{yes|{{aclang ver|15.0.0}}}}
 }}
 {{standard library support row
-| feature=Misc {{tt|constexpr}} bits
+|feature=Misc {{tt|constexpr}} bits
-| reference={{wg21|P1032R1}}
+|reference={{wg21|P1032R1}}
-| version=c++20
+|version=c++20
-| gcc={{yes|10}}
+|gcc={{yes|10}}
-| msvc={{yes|{{msvc ver|2019.8}}}}
+|msvc={{yes|{{msvc ver|2019.8}}}}
-| clang={{yes|13}}
+|clang={{yes|13}}
-| aclang={{yes|{{aclang ver|13.1.6}}}}
+|aclang={{yes|{{aclang ver|13.1.6}}}}
 }}
 {{standard library support row
-| feature=Remove comparison operators of {{ltt|cpp/container/span|std::span}}
+|feature=Remove comparison operators of {{ltt|cpp/container/span|std::span}}
-| reference={{wg21|P1085R2}}
+|reference={{wg21|P1085R2}}
-| version=c++20
+|version=c++20
-| gcc={{yes|10}}
+|gcc={{yes|10}}
-| clang={{yes|8}}
+|clang={{yes|8}}
-| aclang={{yes|{{aclang ver|10.0.1}}}}
+|aclang={{yes|{{aclang ver|10.0.1}}}}
-| msvc={{yes|{{msvc ver|2019.6}}}}
+|msvc={{yes|{{msvc ver|2019.6}}}}
 }}
 {{standard library support row
-| feature=Make stateful allocator propagation more consistent for {{ltt|cpp/string/basic_string/operator+|operator+(basic_string)}}
+|feature=Make stateful allocator propagation more consistent for {{ltt|cpp/string/basic_string/operator+|operator+(basic_string)}}
-| reference={{wg21|P1165R1}}
+|reference={{wg21|P1165R1}}
-| version=c++20
+|version=c++20
-| gcc={{yes|10}}
+|gcc={{yes|10}}
-| msvc={{yes|{{msvc ver|2019.6}}}}
+|msvc={{yes|{{msvc ver|2019.6}}}}
-| clang={{yes|15}}
+|clang={{yes|15}}
-| aclang={{yes|{{aclang ver|14.0.3}}}}
+|aclang={{yes|{{aclang ver|14.0.3}}}}
 }}
 {{standard library support row
-| feature=Consistent container erasure, e.g. {{ltt|cpp/container/vector/erase2|std::erase(std::vector)}}, or {{ltt|cpp/container/map/erase_if|std::erase_if(std::map)}}
+|feature=Consistent container erasure, e.g. {{ltt|cpp/container/vector/erase2|std::erase(std::vector)}}, or {{ltt|cpp/container/map/erase_if|std::erase_if(std::map)}}
-| reference={{wg21|P1209R0}} {{wg21|P1115R3}}
+|reference={{wg21|P1209R0}} {{wg21|P1115R3}}
-| version=c++20
+|version=c++20
-| gcc={{yes|9<br>(P1209R0)<br>10 (P1115R3)}}
+|gcc={{yes|9<br>(P1209R0)<br>10 (P1115R3)}}
-| clang={{yes|8 (P1209R0) <br>11 (P1115R3)}}
+|clang={{yes|8 (P1209R0) <br>11 (P1115R3)}}
-| aclang={{yes|{{aclang ver|10.0.1}} (P1209R0)<br>{{aclang ver|12.0.5}} (P1115R3)}}
+|aclang={{yes|{{aclang ver|10.0.1}} (P1209R0)<br>{{aclang ver|12.0.5}} (P1115R3)}}
-| msvc={{yes|{{msvc ver|2019.5}} (P1209R0)<br>{{msvc ver|2019.7}} (P1115R3)}}
+|msvc={{yes|{{msvc ver|2019.5}} (P1209R0)<br>{{msvc ver|2019.7}} (P1115R3)}}
 }}
 <!--201902-->
 {{standard library support row
-| feature=Standard library header units
+|feature=Standard library header units
-| reference={{wg21|P1502R1}}
+|reference={{wg21|P1502R1}}
-| version=c++20
+|version=c++20
-| gcc={{yes|11}}
+|gcc={{yes|11}}
-| msvc={{yes|{{msvc ver|2019.X}}}}
+|msvc={{yes|{{msvc ver|2019.X}}}}
 }}
 {{standard library support row
-| feature={{ltt|cpp/memory/polymorphic_allocator|polymorphic_allocator<>}} as a vocabulary type
+|feature={{ltt|cpp/memory/polymorphic_allocator|polymorphic_allocator<>}} as a vocabulary type
-| reference={{wg21|P0339R6}}
+|reference={{wg21|P0339R6}}
-| version=c++20
+|version=c++20
-| msvc={{yes|{{msvc ver|2019.9}}}}
+|msvc={{yes|{{msvc ver|2019.9}}}}
-| gcc={{yes|9}}
+|gcc={{yes|9}}
-| clang={{yes|16}}
+|clang={{yes|16}}
+|aclang={{yes|{{aclang ver|15.0.0}}}}
 }}
 {{standard library support row
-| feature={{ltt|cpp/algorithm/execution_policy_tag|std::execution::unseq}}
+|feature={{ltt|cpp/algorithm/execution_policy_tag|std::execution::unseq}}
-| reference={{wg21|P1001R2}}
+|reference={{wg21|P1001R2}}
-| version=c++20
+|version=c++20
-| msvc={{yes|{{msvc ver|2019.8}}}}
+|msvc={{yes|{{msvc ver|2019.8}}}}
-| gcc={{yes|9}}
+|clang={{yes|17}}
+|gcc={{yes|9}}
 }}
 {{standard library support row
-| feature={{ltf|cpp/numeric/lerp|std::lerp}} and {{ltf|cpp/numeric/midpoint|std::midpoint}}
+|feature={{ltf|cpp/numeric/lerp|std::lerp}} and {{ltf|cpp/numeric/midpoint|std::midpoint}}
-| reference={{wg21|P0811R3}}
+|reference={{wg21|P0811R3}}
-| version=c++20
+|version=c++20
-| gcc={{yes|9}}
+|gcc={{yes|9}}
-| clang={{yes|9}}
+|clang={{yes|9}}
-| aclang={{yes|{{aclang ver|11.0.3}}}}
+|aclang={{yes|{{aclang ver|11.0.3}}}}
-| msvc={{yes|{{msvc ver|2019.3}} (partial)<br>{{msvc ver|2019.8}}}}
+|msvc={{yes|{{msvc ver|2019.3}} (partial)<br>{{msvc ver|2019.8}}}}
 }}
 {{standard library support row
-| feature=Usability enhancements for {{ltt|cpp/container/span|std::span}}
+|feature=Usability enhancements for {{ltt|cpp/container/span|std::span}}
-| reference={{wg21|P1024R3}}
+|reference={{wg21|P1024R3}}
-| version=c++20
+|version=c++20
-| gcc={{yes|10}}
+|gcc={{yes|10}}
-| clang={{yes|{{popup|nodiscard missing|9}}<br>14}}
+|clang={{yes|{{popup|nodiscard missing|9}}<br>14}}
-| aclang={{yes|{{aclang ver|11.0.3}}}}
+|aclang={{yes|{{aclang ver|11.0.3}}}}
-| msvc={{yes|{{msvc ver|2019.6}}}}
+|msvc={{yes|{{msvc ver|2019.6}}}}
 }}
 {{standard library support row
-| feature=DR17: Make {{ltf|cpp/filesystem/create_directory}} intuitive
+|feature=DR17: Make {{ltf|cpp/filesystem/create_directory}} intuitive
-| reference={{wg21|P1164R1}}
+|reference={{wg21|P1164R1}}
-| version=c++20
+|version=c++20
-| gcc={{yes|8.3}}
+|gcc={{yes|8.3}}
-| clang={{yes|12}}
+|clang={{yes|12}}
-| aclang={{yes|{{aclang ver|13.0.0}}}}
+|aclang={{yes|{{aclang ver|13.0.0}}}}
-| msvc={{yes|{{msvc ver|2019}}}}
+|msvc={{yes|{{msvc ver|2019}}}}
 }}
 {{standard library support row
-| feature={{ltf|cpp/iterator/size|std::ssize}} and unsigned extent for {{ltt|cpp/container/span|std::span}}
+|feature={{ltf|cpp/iterator/size|std::ssize}} and unsigned extent for {{ltt|cpp/container/span|std::span}}
-| reference={{wg21|P1227R2}}
+|reference={{wg21|P1227R2}}
-| version=c++20
+|version=c++20
-| gcc={{yes|10}}
+|gcc={{yes|10}}
-| clang={{yes|9}}
+|clang={{yes|9}}
-| aclang={{yes|{{aclang ver|11.0.3}}}}
+|aclang={{yes|{{aclang ver|11.0.3}}}}
-| msvc={{yes|{{msvc ver|2019.5}}}}
+|msvc={{yes|{{msvc ver|2019.5}}}}
 }}
 {{standard library support row
-| feature=Traits for ([[cpp/types/is_unbounded_array|un]])[[cpp/types/is_bounded_array|bounded]] arrays
+|feature=Traits for ([[cpp/types/is_unbounded_array|un]])[[cpp/types/is_bounded_array|bounded]] arrays
-| reference={{wg21|P1357R1}}
+|reference={{wg21|P1357R1}}
-| version=c++20
+|version=c++20
-| gcc={{yes|9}}
+|gcc={{yes|9}}
-| clang={{yes|9}}
+|clang={{yes|9}}
-| aclang={{yes|{{aclang ver|11.0.3}}}}
+|aclang={{yes|{{aclang ver|11.0.3}}}}
-| msvc={{yes|{{msvc ver|2019.5}}}}
+|msvc={{yes|{{msvc ver|2019.5}}}}
 }}
 <!--201907-->
 {{standard library support row
-| feature={{ltf|cpp/container/array/to_array|std::to_array}}
+|feature={{ltf|cpp/container/array/to_array|std::to_array}}
-| reference={{wg21|P0325R4}}
+|reference={{wg21|P0325R4}}
-| version=c++20
+|version=c++20
-| gcc={{yes|10}}
+|gcc={{yes|10}}
-| msvc={{yes|{{msvc ver|2019.5}}}}
+|msvc={{yes|{{msvc ver|2019.5}}}}
-| clang={{yes|10}}
+|clang={{yes|10}}
-| aclang={{yes|{{aclang ver|12.0.0}}}}
+|aclang={{yes|{{aclang ver|12.0.0}}}}
 }}
 {{standard library support row
-| feature=Efficient access to {{lc|std::basic_stringbuf}}’s buffer
+|feature=Efficient access to {{lc|std::basic_stringbuf}}’s buffer
-| reference={{wg21|P0408R7}}
+|reference={{wg21|P0408R7}}
-| version=c++20
+|version=c++20
-| gcc={{yes|11}}
+|gcc={{yes|11}}
-| clang={{maybe|{{popup|Only `view()` members implemented|17 (partial)}}}}
+|clang={{yes|17}}
-| msvc={{yes|{{msvc ver|2019.X}}}}
+|msvc={{yes|{{msvc ver|2019.X}}}}
+|aclang={{yes|{{aclang ver|15.0.0}}}}
 }}
 {{standard library support row
-| feature=[[cpp/types/is_layout_compatible|Layout]]-[[cpp/types/is_corresponding_member|compatibility]] and [[cpp/types/is_pointer_interconvertible_base_of|pointer]]-[[cpp/types/is_pointer_interconvertible_with_class|interconvertibility]] traits
+|feature=[[cpp/types/is_layout_compatible|Layout]]-[[cpp/types/is_corresponding_member|compatibility]] and [[cpp/types/is_pointer_interconvertible_base_of|pointer]]-[[cpp/types/is_pointer_interconvertible_with_class|interconvertibility]] traits
-| reference={{wg21|P0466R5}}
+|reference={{wg21|P0466R5}}
-| version=c++20
+|version=c++20
-| gcc={{yes|12}}
+|gcc={{yes|12}}
-| msvc={{yes|{{msvc ver|2019.X}}}}<span title="Initially supported for MSVC only; will be supported for Clang after LLVM-48860 is resolved.">*</span>
+|msvc={{yes|{{msvc ver|2019.X}}}}<span title="Initially supported for MSVC only; will be supported for Clang after LLVM-48860 is resolved.">*</span>
 }}
 {{standard library support row
-| feature=[[cpp/numeric#Bit manipulation (since C++20)|Bit operations]]: {{tt|std::}}
+|feature=[[cpp/numeric#Bit manipulation (since C++20)|Bit operations]]: {{tt|std::}}
 {{ltf|cpp/numeric/rotl}},
 {{ltf|cpp/numeric/rotr}},
@@ Line 1,501: / Line 1,523: @@
 {{ltf|cpp/numeric/countr_one}},
 {{ltf|cpp/numeric/popcount}}
-| reference={{wg21|P0553R4}}
+|reference={{wg21|P0553R4}}
-| version=c++20
+|version=c++20
-| gcc={{yes|9}}
+|gcc={{yes|9}}
-| clang={{yes|9}}
+|clang={{yes|9}}
-| aclang={{yes|{{aclang ver|11.0.3}}}}
+|aclang={{yes|{{aclang ver|11.0.3}}}}
-| msvc={{yes|{{msvc ver|2019.5}}{{popup|with Clang}}<br>{{msvc ver|2019.8}}}}
+|msvc={{yes|{{msvc ver|2019.5}}{{popup|with Clang}}<br>{{msvc ver|2019.8}}}}
 }}
 {{standard library support row
-| feature=[[cpp/numeric/constants|Mathematical constants]]
+|feature=[[cpp/numeric/constants|Mathematical constants]]
-| reference={{wg21|P0631R8}}
+|reference={{wg21|P0631R8}}
-| version=c++20
+|version=c++20
-| gcc={{yes|10}}
+|gcc={{yes|10}}
-| msvc={{yes|{{msvc ver|2019.5}}}}
+|msvc={{yes|{{msvc ver|2019.5}}}}
-| clang={{yes|11}}
+|clang={{yes|11}}
-| aclang={{yes|{{aclang ver|12.0.5}}}}
+|aclang={{yes|{{aclang ver|12.0.5}}}}
 }}
 {{standard library support row
-| feature=[[cpp/utility/format|Text formatting]]
+|feature=[[cpp/utility/format|Text formatting]]
-| reference={{wg21|P0645R10}}
+|reference={{wg21|P0645R10}}
-| version=c++20
+|version=c++20
-| gcc={{yes|13}}
+|gcc={{yes|13}}
-| clang={{yes|{{popup|Support is considered experimental and the -fexperimental-library compiler flag is required|14}}}}
+|clang={{yes|{{popup|Support is considered experimental and the -fexperimental-library compiler flag is required|14}}<br>17}}
-| msvc={{yes|{{msvc ver|2019.X}}}}
+|msvc={{yes|{{msvc ver|2019.X}}}}
+|aclang={{yes|{{aclang ver|15.0.0}}}}
 }}
 {{standard library support row
-| feature={{ltt|cpp/thread/stop_token|std::stop_token}} and {{ltt|cpp/thread/jthread|std::jthread}}
+|feature={{ltt|cpp/thread/stop_token|std::stop_token}} and {{ltt|cpp/thread/jthread|std::jthread}}
-| reference={{wg21|P0660R10}}
+|reference={{wg21|P0660R10}}
-| version=c++20
+|version=c++20
-| gcc={{yes|10}}
+|gcc={{yes|10}}
-| msvc={{yes|{{msvc ver|2019.9}}}}
+|clang={{yes|{{popup|Missing std::jthread and std::conditional_variable_any::wait_(until/for)|17<br>(partial)}}<br>{{popup|The feature was implemented since LLVM 18 but was guarded behind `-fexperimental-library`|20}}}}
+|msvc={{yes|{{msvc ver|2019.9}}}}
 }}
 {{standard library support row
-| feature={{tt|constexpr}} {{lc|std::allocator}} and related utilities
+|feature={{tt|constexpr}} {{lc|std::allocator}} and related utilities
-| reference={{wg21|P0784R7}}
+|reference={{wg21|P0784R7}}
-| version=c++20
+|version=c++20
-| gcc={{yes|10}}
+|gcc={{yes|10}}
-| clang={{yes|12}}
+|clang={{yes|12}}
-| aclang={{yes|{{aclang ver|13.0.0}}}}
+|aclang={{yes|{{aclang ver|13.0.0}}}}
-| msvc={{yes|{{msvc ver|2019.X}}}}
+|msvc={{yes|{{msvc ver|2019.X}}}}
 }}
 {{standard library support row
-| feature={{tt|constexpr}} {{lc|std::string}}
+|feature={{tt|constexpr}} {{lc|std::string}}
-| reference={{wg21|P0980R1}}
+|reference={{wg21|P0980R1}}
-| version=c++20
+|version=c++20
-| msvc={{yes|{{msvc ver|2019.X}}<br>{{popup|Enabled for Clang 12+|{{msvc ver|19.30}}}}}}
+|msvc={{yes|{{msvc ver|2019.X}}<br>{{popup|Enabled for Clang 12+|{{msvc ver|19.30}}}}}}
-| gcc={{yes|12}}
+|gcc={{yes|12}}
-| clang={{yes|15}}
+|clang={{yes|15}}
-| aclang={{yes|{{aclang ver|14.0.3}}}}
+|aclang={{yes|{{aclang ver|14.0.3}}}}
 }}
 {{standard library support row
-| feature={{tt|constexpr}} {{lc|std::vector}}
+|feature={{tt|constexpr}} {{lc|std::vector}}
-| reference={{wg21|P1004R2}}
+|reference={{wg21|P1004R2}}
-| version=c++20
+|version=c++20
-| msvc={{yes|{{msvc ver|2019.X}}<br>{{popup|Enabled for Clang 12+|{{msvc ver|19.30}}}}}}
+|msvc={{yes|{{msvc ver|2019.X}}<br>{{popup|Enabled for Clang 12+|{{msvc ver|19.30}}}}}}
-| gcc={{yes|12}}
+|gcc={{yes|12}}
-| clang={{yes|15}}
+|clang={{yes|15}}
-| aclang={{yes|{{aclang ver|14.0.3}}}}
+|aclang={{yes|{{aclang ver|14.0.3}}}}
 }}
 {{standard library support row
-| feature=Input [[cpp/ranges|range adaptors]]
+|feature=Input [[cpp/ranges|range adaptors]]
-| reference={{wg21|P1035R7}}
+|reference={{wg21|P1035R7}}
-| version=c++20
+|version=c++20
-| gcc={{yes|10}}
+|gcc={{yes|10}}
-| clang={{yes|16}}
+|clang={{yes|16}}
-| msvc={{yes|{{msvc ver|2019.X}}}}
+|msvc={{yes|{{msvc ver|2019.X}}}}
+|aclang={{yes|{{aclang ver|15.0.0}}}}
 }}
 {{standard library support row
-| feature={{tt|constexpr}} {{lc|std::invoke()}} and related utilities
+|feature={{tt|constexpr}} {{lc|std::invoke()}} and related utilities
-| reference={{wg21|P1065R2}}
+|reference={{wg21|P1065R2}}
-| version=c++20
+|version=c++20
-| gcc={{yes|10}}
+|gcc={{yes|10}}
-| clang={{yes|12}}
+|clang={{yes|12}}
-| aclang={{yes|{{aclang ver|13.0.0}}}}
+|aclang={{yes|{{aclang ver|13.0.0}}}}
-| msvc={{yes|{{msvc ver|2019.8}}}}
+|msvc={{yes|{{msvc ver|2019.8}}}}
 }}
 {{standard library support row
-| feature=Atomic waiting and notifying, {{ltt|cpp/thread/counting_semaphore|std::counting_semaphore}}, {{ltt|cpp/thread/latch|std::latch}} and {{ltt|cpp/thread/barrier|std::barrier}}
+|feature=Atomic waiting and notifying, {{ltt|cpp/thread/counting_semaphore|std::counting_semaphore}}, {{ltt|cpp/thread/latch|std::latch}} and {{ltt|cpp/thread/barrier|std::barrier}}
-| reference={{wg21|P1135R6}}
+|reference={{wg21|P1135R6}}
-| version=c++20
+|version=c++20
-| gcc={{yes|11}}
+|gcc={{yes|11}}
-| clang={{yes|11}}
+|clang={{yes|11}}
-| aclang={{yes|{{aclang ver|13.1.6}}}}
+|aclang={{yes|{{aclang ver|13.1.6}}}}
-| msvc={{yes|{{msvc ver|2019.8}}}}
+|msvc={{yes|{{msvc ver|2019.8}}}}
 }}
 {{standard library support row
-| feature={{ltt|cpp/utility/source_location|std::source_location}}
+|feature={{ltt|cpp/utility/source_location|std::source_location}}
-| reference={{wg21|P1208R6}}
+|reference={{wg21|P1208R6}}
-| version=c++20
+|version=c++20
-| gcc={{yes|11}}
+|gcc={{yes|11}}
-| clang={{yes|{{popup|__builtin_source_location implemented, missing libstdc++ implementation (https://reviews.llvm.org/D120159, https://reviews.llvm.org/D120634). Also wrong location reported when used as default argument (https://github.com/llvm/llvm-project/issues/56379)|15}}<br>(partial)<br>16}}
+|clang={{yes|{{popup|__builtin_source_location implemented, missing libstdc++ implementation (https://reviews.llvm.org/D120159, https://reviews.llvm.org/D120634). Also wrong location reported when used as default argument (https://github.com/llvm/llvm-project/issues/56379)|15}}<br>(partial)<br>16}}
-| msvc={{yes|{{msvc ver|2019.X}}}}
+|msvc={{yes|{{msvc ver|2019.X}}}}
+|aclang={{yes|{{aclang ver|15.0.0}}}}
 }}
 {{standard library support row
-| feature=Adding {{ltt|cpp/language/operator_comparison#Three-way_comparison|2=<=>}} to the standard library
+|feature=Adding {{ltt|cpp/language/operator_comparison#Three-way_comparison|2=<=>}} to the standard library
-| reference={{wg21|P1614R2}}
+|reference={{wg21|P1614R2}}
-| version=c++20
+|version=c++20
-| gcc={{yes|10}}
+|gcc={{yes|10}}
-| clang={{maybe|{{popup|Essential parts implemented, various operator implementations missing.|14}}<br>(partial)}}
+|clang={{yes|{{popup|Essential parts implemented, various operator implementations missing.|14}}<br>(partial)<br>{{popup|All parts are implemented but time_zone, which itself is not yet implemented in the library.|17}}<br>(partial)<br>19}}
-| aclang={{maybe|{{aclang ver|13.1.6}} (partial)}}
+|aclang={{maybe|{{aclang ver|13.1.6}} (partial)}}
-| msvc={{yes|{{msvc ver|2019.X}}}}
+|msvc={{yes|{{msvc ver|2019.X}}}}
 }}
-<!-- 201911 -->
+<!--201911-->
 {{standard library support row
-| feature={{tt|constexpr}} default constructor of {{lc|std::atomic}} and {{lc|std::atomic_flag}}
+|feature={{tt|constexpr}} default constructor of {{lc|std::atomic}} and {{lc|std::atomic_flag}}
-| reference={{wg21|P0883R2}}
+|reference={{wg21|P0883R2}}
-| version=c++20
+|version=c++20
-| gcc={{yes|10}}
+|gcc={{yes|10}}
-| clang={{yes|13}}
+|clang={{yes|13}}
-| aclang={{yes|{{aclang ver|13.1.6}}}}
+|aclang={{yes|{{aclang ver|13.1.6}}}}
-| msvc={{yes|{{msvc ver|2019.6}}}}
+|msvc={{yes|{{msvc ver|2019.6}}}}
 }}
 {{standard library support row
-| feature={{tt|constexpr}} for [[cpp/numeric#Numeric operations|numeric algorithms]]
+|feature={{tt|constexpr}} for [[cpp/numeric#Numeric operations|numeric algorithms]]
-| reference={{wg21|P1645R1}}
+|reference={{wg21|P1645R1}}
-| version=c++20
+|version=c++20
-| gcc={{yes|10}}
+|gcc={{yes|10}}
-| clang={{yes|12}}
+|clang={{yes|12}}
-| aclang={{yes|{{aclang ver|13.0.0}}}}
+|aclang={{yes|{{aclang ver|13.0.0}}}}
-| msvc={{yes|{{msvc ver|2019.6}}}}
+|msvc={{yes|{{msvc ver|2019.6}}}}
 }}
-<!-- 202002 -->
+<!--202002-->
 {{standard library support row
-| feature=[[cpp/utility#Integer_comparison_functions|Safe integral comparisons]]
+|feature=[[cpp/utility#Integer_comparison_functions|Safe integral comparisons]]
-| reference={{wg21|P0586R2}}
+|reference={{wg21|P0586R2}}
-| version=c++20
+|version=c++20
-| gcc={{yes|10}}
+|gcc={{yes|10}}
-| clang={{yes|13}}
+|clang={{yes|13}}
-| aclang={{yes|{{aclang ver|13.1.6}}}}
+|aclang={{yes|{{aclang ver|13.1.6}}}}
-| msvc={{yes|{{msvc ver|2019.7}}}}
+|msvc={{yes|{{msvc ver|2019.7}}}}
 }}
 }}