Compiler support for C++23
C++23 core language features
C++23 feature |
Paper(s) |
GCC
|
Clang
|
MSVC
|
Apple Clang
|
EDG eccp
|
Intel C++
|
IBM XLC++
|
Sun/Oracle C++
|
Embarcadero C++ Builder
|
Cray
|
Nvidia HPC C++
(ex Portland Group/PGI) |
Nvidia nvcc
|
|
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Literal suffix for (signed) size_t |
P0330R8 | 11 | 13 | 13.1.6* |
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Make () more optional for lambdas |
P1102R2 | 11 | 13 | 13.1.6* |
6.3 | |||||||||
if consteval |
P1938R3 | 12 | 14 | 6.3 | ||||||||||
Removing Garbage Collection Support | P2186R2 | 12 | ||||||||||||
DR: C++ Identifier Syntax using Unicode Standard Annex 31 | P1949R7 | 12 | 14 | 6.4 | ||||||||||
DR: Allow Duplicate Attributes | P2156R1 | 11 | 13 | 13.1.6* |
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Narrowing contextual conversions in static_assert and constexpr if |
P1401R5 | 9 | 13 (partial)* 14 |
13.1.6* (partial). |
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Trimming whitespaces before line splicing | P2223R2 | Yes | Yes | Yes | ||||||||||
Make declaration order layout mandated | P1847R4 | Yes | Yes | Yes | Yes | |||||||||
Removing mixed wide string literal concatenation | P2201R1 | Yes | Yes | Yes | Yes | Yes | Yes | |||||||
Deducing this | P0847R7 | 19.32* (partial)* |
6.3 | |||||||||||
auto(x) and auto{x} |
P0849R8 | 12 | 15 | |||||||||||
Change scope of lambda trailing-return-type | P2036R3 | 15 | ||||||||||||
#elifdef and #elifndef |
P2334R1 | 12 | 13 | 13.1.6* |
||||||||||
Non-literal variables (and labels and gotos) in constexpr functions |
P2242R3 | 12 | 15 | 6.3 | ||||||||||
Consistent character literal encoding | P2316R2 | Yes | Yes | Yes | Yes | |||||||||
Character sets and encodings | P2314R4 | Yes | Yes | |||||||||||
Extend init-statement to allow alias-declaration | P2360R0 | 12 | 14 | |||||||||||
Multidimensional subscript operator | P2128R6 | 12 | 15 | |||||||||||
Attributes on lambdas | P2173R1 | 9 | 13 | 13.1.6* |
||||||||||
DR: Adjusting the value of feature testing macro __cpp_concepts | P2493R0 | 12 | 19.32* | 6.4 | ||||||||||
C++23 feature |
Paper(s) |
GCC
|
Clang
|
MSVC
|
Apple Clang
|
EDG eccp
|
Intel C++
|
IBM XLC++
|
Sun/Oracle C++
|
Embarcadero C++ Builder
|
Cray
|
Nvidia HPC C++
|
Nvidia nvcc
|
C++23 library features
C++23 feature |
Paper(s) |
GCC libstdc++
|
Clang libc++
|
MSVC STL
|
Apple Clang
|
Sun/Oracle C++
Standard Library |
Embarcadero C++ Builder
Standard Library |
Cray C++
Standard Library |
|
---|---|---|---|---|---|---|---|---|---|
Stacktrace library | P0881R7 P2301R1 | 12 (partial)* | |||||||
<stdatomic.h> |
P0943R6 | 12 | 15 | 19.31* | |||||
std::is_scoped_enum |
P1048R1 | 11 | 12 | 19.30* | 13.0.0* |
||||
basic_string::contains() , basic_string_view::contains() |
P1679R3 | 11 | 12 | 19.30* | 13.0.0* |
||||
std::to_underlying |
P1682R3 | 11 | 13 | 19.30* | 13.1.6* |
||||
Relaxing requirements for time_point<>::clock |
P2212R2 | N/A | N/A | ||||||
DR: std::visit() for classes derived from std::variant |
P2162R2 | 11.3 | 13 | 19.20** 19.30* |
13.1.6* |
||||
DR: Conditionally borrowed ranges | P2017R1 | 11 | 19.30* | ||||||
DR: Repairing input range adaptors and std::counted_iterator |
P2259R1 | 12 | 19.30*(partial)* 19.31* |
||||||
Providing size feedback in the Allocator interface | P0401R6 | 15 | 19.30* | ||||||
<spanstream> : string-stream with std::span -based buffer |
P0448R4 | 12 | 19.31* | ||||||
std::out_ptr() , std::inout_ptr() |
P1132R8 | 19.30* | |||||||
constexpr type_info::operator==() |
P1328R1 | 12 | |||||||
Iterator pair constructors for std::stack and std::queue |
P1425R4 | 12 | 14 | 19.31* | |||||
Non-deduction context for allocators in container deduction guides | P1518R2 | 12 | 13 | 19.31* | 13.1.6* |
||||
ranges::starts_with() and ranges::ends_with() |
P1659R3 | 19.31* | |||||||
Prohibiting std::basic_string and std::basic_string_view construction from nullptr |
P2166R1 | 12 | 13 | 19.30* | 13.1.6* |
||||
std::invoke_r() |
P2136R3 | 12 | 19.31* | ||||||
Range constructor for std::basic_string_view |
P1989R2 | 11 | 14 | 19.30* | |||||
Default template arguments for pair 's forwarding constructor |
P1951R1 | 14 | 19.30* | ||||||
Remove Garbage Collection and Reachability-Based Leak Detection (library support) | P2186R2 | 12 | 14 | 19.30* | |||||
DR: views::join should join all views of ranges |
P2328R1 | 11.2 | 19.30* | ||||||
DR: view does not require default_initializable |
P2325R3 | 11.3 | 19.30* | ||||||
DR: Range adaptor objects bind arguments by value | P2281R1 | 11 | 19.29 (16.10)* (partial)* 19.31* |
||||||
DR: constexpr for std::optional and std::variant |
P2231R1 | 11.3 (partial)* 12 |
13 (partial)* | 19.31* | 13.1.6* (partial). |
||||
DR: std::format() improvements |
P2216R3 | 14 (partial)* | 19.32* | ||||||
DR: views::lazy_split and redesigned views::split |
P2210R2 | 12 | 19.31* | ||||||
zip: views::zip , views::zip_transform , views::adjacent , and views::adjacent_transform |
P2321R2 | 15 (partial)* | |||||||
Heterogeneous erasure overloads for associative containers | P2077R3 | 19.32* | |||||||
std::byteswap() |
P1272R4 | 12 | 14 | 19.31* | |||||
Printing volatile T* |
P1147R1 | 11.3 | 14 | 19.31* | |||||
basic_string::resize_and_overwrite() |
P1072R10 | 12 | 14 | 19.31* | |||||
Monadic operations for std::optional |
P0798R8 | 12 | 14 | 19.32* | |||||
std::move_only_function |
P0288R9 | 12 | 19.32* | ||||||
Add a conditional noexcept specification to std::exchange |
P2401R0 | 12 | 14 | 19.25* | |||||
Require span & basic_string_view to be TriviallyCopyable |
P2251R1 | Yes | Yes | Yes | Yes | ||||
Clarifying the status of the “C headers” | P2340R1 | Yes | Yes | ||||||
DR: Fix views::istream |
P2432R1 | 12 | 19.31* | ||||||
DR: Add support for non-const-formattable types to std::format |
P2418R2 | 19.32* | |||||||
DR: What is a view |
P2415R2 | 12 | 14 | 19.31* | |||||
DR: Fixing locale handling in chrono formatters | P2372R3 | 19.31* | |||||||
DR: Cleaning up integer-class types | P2393R1 | 19.32* | |||||||
<expected> |
P0323R12 | 12 | 19.33* | ||||||
constexpr for <cmath> and <cstdlib> |
P0533R9 | ||||||||
std::unreachable() |
P0627R6 | 12 | 15 | 19.32* | |||||
Deprecating std::aligned_storage and std::aligned_union |
P1413R3 | 19.33* | |||||||
A type trait to detect reference binding to temporary | P2255R2 | ||||||||
constexpr std::unique_ptr |
P2273R3 | 12 | 19.33* | ||||||
ranges::to |
P1206R7 | ||||||||
Pipe support for user-defined range adaptors | P2387R3 | ||||||||
ranges::iota , ranges::shift_left , and ranges::shift_right |
P2440R1 | ||||||||
views::join_with |
P2441R2 | ||||||||
views::chunk and views::slide |
P2442R1 | 19.33* | |||||||
views::chunk_by |
P2443R1 | 19.33* | |||||||
C++23 feature |
Paper(s) |
GCC libstdc++
|
Clang libc++
|
MSVC STL
|
Apple Clang
|
Sun/Oracle C++
Standard Library |
Embarcadero C++ Builder
Standard Library |
Cray C++
Standard Library |
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