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Latest revision as of 05:37, 27 February 2024
* - hover over a cell marked with the star * to see additional pop-up notes.
DRnn - the number nn after "DR" denotes target C++ revision the Defect Report is applied to, e.g., DR20 → C++20.
[edit] C++17 core language features
| C++17 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 |
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
DR11: New auto rules for direct-list-initialization
|
N3922 | 5 | 3.8 | 19.0 (2015)* | Yes | 4.10.1 | 17.0 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 17.7 | 11.0 | |||
| static_assert with no message | N3928 | 6 | 2.5 | 19.10* | Yes | 4.12 | 18.0 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 17.7 | 11.0 | |||
typename in a template template parameter
|
N4051 | 5 | 3.5 | 19.0 (2015)* | Yes | 4.10.1 | 17.0 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 17.7 | Yes* | |||
| Removing trigraphs | N4086 | 5 | 3.5 | 16.0* | Yes | 5.0 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 19.1 | 11.0 | ||||
| Nested namespace definition | N4230 | 6 | 3.6 | 19.0 (Update 3)* | Yes | 4.12 | 17.0 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 17.7 | 11.0 | |||
| Attributes for namespaces and enumerators | N4266 | 4.9 (partial)* 6 |
3.6 | 19.0 (2015)* | Yes | 4.11 | 17.0 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 17.7 | 11.0 | |||
u8 character literals
|
N4267 | 6 | 3.6 | 19.0 (2015)* | Yes | 4.11 | 17.0 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 17.7 | 11.0 | |||
| Allow constant evaluation for all non-type template arguments | N4268 | 6 | 3.6 | 19.12* | Yes | 5.0 | 19.0.1 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 19.1 | 11.0 | |||
| Fold Expressions | N4295 | 6 | 3.6 | 19.12* | Yes | 4.14 | 19.0 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 18.1 | 11.0 | |||
| Unary fold expressions and empty parameter packs | P0036R0 | 6 | 3.9 | 19.12* | Yes | 4.14 | 19.0 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 19.1 | 11.0 | |||
| Remove Deprecated Use of the register Keyword | P0001R1 | 7 | 3.8 | 19.11* | Yes | 4.13 | 18.0 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 17.7 | 11.0 | |||
Remove Deprecated operator++(bool)
|
P0002R1 | 7 | 3.8 | 19.11* | Yes | 4.13 | 18.0 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 17.7 | 11.0 | |||
| Make exception specifications part of the type system | P0012R1 | 7 | 4 | 19.12* | Yes | 4.14 | 19.0 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 19.1 | 11.0 | |||
| Aggregate classes with base classes | P0017R1 | 7 | 3.9 | 19.14* | Yes | 5.0 | 19.0.1 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 19.1 | 11.0 | |||
| __has_include in preprocessor conditionals | P0061R1 | 5 | Yes | 19.11* | Yes | 4.13 | 18.0 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 17.7 | 11.0 | |||
| DR11: New specification for inheriting constructors (DR1941 et al) | P0136R1 | 7 | 3.9 | 19.14 (partial)* | Yes | 6.1 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 19.1 | 11.0 | ||||
Lambda capture of *this
|
P0018R3 | 7 | 3.9 | 19.11* | Yes | 4.14 | 19.0 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 18.1 | 11.0 | |||
| Direct-list-initialization of enumerations | P0138R2 | 7 | 3.9 | 19.11* | Yes | 4.14 | 18.0 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 19.1 | 11.0 | |||
| constexpr lambda expressions | P0170R1 | 7 | 5 | 19.11* | Yes | 4.14 | 19.0 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 18.1 | 11.0 | |||
| Differing begin and end types in range-based for | P0184R0 | 6 | 3.9 | 19.10* | Yes | 4.12 | 18.0 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 17.7 | 11.0 | |||
[[fallthrough]] attribute
|
P0188R1 | 7 | 3.9 | 19.10* | Yes | 4.13 | 18.0 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 17.7 | 11.0 | |||
[[nodiscard]] attribute
|
P0189R1 | 7 | 3.9 | 19.11* | Yes | 4.13 | 18.0 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 17.7 | 11.0 | |||
[[maybe_unused]] attribute
|
P0212R1 | 7 | 3.9 | 19.11* | Yes | 4.13 | 18.0 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 17.7 | 11.0 | |||
| Hexadecimal floating-point literals | P0245R1 | 3.0 | Yes | 19.11* | Yes | 4.13 | 18.0 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 17.7 | 11.0 | |||
| Using attribute namespaces without repetition | P0028R4 | 7 | 3.9 | 19.11* | Yes | 4.13 | 18.0 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 17.7 | 11.0 | |||
| Dynamic memory allocation for over-aligned data | P0035R4 | 7 | 4 | 19.12* |
10.0.0* |
4.14 | 19.0 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 19.1 | 11.0 | |||
| Class template argument deduction | P0091R3 | 7 | 5 | 19.14* | Yes | 5.0 | 19.0.1 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 19.1 | 11.0 | |||
Non-type template parameters with auto type
|
P0127R2 | 7 | 4 | 19.14* | Yes | 5.0 | 19.0.1 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 19.1 | 11.0 | |||
| Guaranteed copy elision | P0135R1 | 7 | 4 | 19.13* | Yes | 5.0 | 19.0.1 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 19.1 | 11.0 | |||
| Replacement of class objects containing reference members | P0137R1 | 7 | 6 | 19.14* | Yes | 5.0 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 19.1 | 11.0 | ||||
| Stricter expression evaluation order | P0145R3 | 7 | 4 | 19.14* | Yes | 5.0 | 19.0.1 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 19.1 | 11.0 | |||
| Structured Bindings | P0217R3 | 7 | 4 | 19.11* | Yes | 4.14 | 19.0 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 18.1 | 11.0* | |||
| Ignore unknown attributes | P0283R2 | Yes | 3.9 | 19.11* | Yes | 4.13 | 18.0 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 17.7 | 11.0 | |||
| constexpr if statements | P0292R2 | 7 | 3.9 | 19.11* | Yes | 4.14 | 19.0 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 18.1 | 11.0 | |||
| init-statements for if and switch | P0305R1 | 7 | 3.9 | 19.11* | Yes | 4.14 | 18.0 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 18.1 | 11.0 | |||
| Inline variables | P0386R2 | 7 | 3.9 | 19.12* | Yes | 4.14 | 19.0 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 18.1 | 11.0 | |||
| Removing dynamic exception specifications | P0003R5 | 7 | 4 | 19.10* | Yes | 4.14 | 19.0 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 19.1 | 11.0 | |||
| Pack expansions in using-declarations | P0195R2 | 7 | 4 | 19.14* | Yes | 5.0 | 19.0 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 19.1 | 11.0 | |||
| DR98: Matching of template template-arguments excludes compatible templates | P0522R0 | 7 | 4 | 19.12* | Yes | 5.0 | 19.0.1 | 17.1.0 | 1.1.0 | 10.3 | 11.0 | 19.1 | 11.0 | |||
| C++17 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++17 library features
| C++17 feature |
Paper(s) |
GCC libstdc++ |
Clang libc++ |
MSVC STL |
Apple Clang* |
IBM Open XL C/C++ for AIX* |
Intel Parallel STL |
Sun/Oracle C++* |
Embarcadero C++ Builder* |
|
|---|---|---|---|---|---|---|---|---|---|---|
| std::void_t | N3911 | 6 | 3.6 | 19.0 (2015)* | Yes | 17.1.0 | N/A | 10.3 | ||
| std::uncaught_exceptions() | N4259 | 6 | 3.7 | 19.0 (2015)* | Yes | 17.1.0 | N/A | 10.3 | ||
| std::size(), std::empty() and std::data() | N4280 | 6 | 3.6 | 19.0 (2015)* | Yes | 17.1.0 | N/A | 10.3 | ||
| Improving std::pair and std::tuple | N4387 | 6 | 4 | 19.0 (Update 2)* | Yes | 17.1.0 | N/A | 10.3 | ||
| std::bool_constant | N4389 | 6 | 3.7 | 19.0 (2015)* | Yes | 17.1.0 | N/A | 10.3 | ||
| std::shared_mutex (untimed) | N4508 | 6 | 3.7 | 19.0 (Update 2)* | Yes | 17.1.0 | N/A | 10.3 | ||
| Type traits variable templates | P0006R0 | 7 | 3.8 | 19.0 (Update 2)* | Yes | 17.1.0 | N/A | 10.3 | ||
| Logical operator type traits | P0013R1 | 6 | 3.8 | 19.0 (Update 2)* | Yes | 17.1.0 | N/A | 10.3 | ||
| Parallel algorithms and execution policies | P0024R2 | 9* | 17 (partial)* |
19.14* | 18.0* | |||||
| std::clamp() | P0025R1 | 7 | 3.9 | 19.0 (Update 3)* |
10.0.0* |
17.1.0 | N/A | 10.3 | ||
| Hardware interference size | P0154R1 | 12 | 15 (partial)* 19 |
19.11* | N/A | 10.3 | ||||
| (nothrow-)swappable traits | P0185R1 | 7 | 3.9 | 19.0 (Update 3)* |
10.0.0* |
17.1.0 | N/A | 10.3 | ||
| File system library (std::filesystem) | P0218R1 | 8 | 7 | 19.14* |
11.0.0* |
17.1.1 | N/A | 10.3 | ||
| std::string_view | N3921 P0220R1 |
7 | 4 | 19.10* |
10.0.0* |
17.1.0 | N/A | 10.3 | ||
| std::any | P0220R1 | 7 | 4 | 19.10* |
10.0.0* |
17.1.0 | N/A | 10.3 | ||
| std::optional | P0220R1 | 7 | 4 | 19.10* |
10.0.0* |
17.1.0 | N/A | 10.3 | ||
| Polymorphic memory resources | P0220R1 | 9 | 16 | 19.13* |
15.0.0* |
N/A | 10.3 | |||
| Mathematical special functions | P0226R1 | 7 | 19.14* | N/A | 10.3 | |||||
| Major portion of C11 standard library | P0063R3 | 9 | 7 | 19.0 (2015)* (partial)* |
10.0.0* |
17.1.1 | N/A | |||
| Splicing Maps and Sets | P0083R3 | 7 | 8 | 19.12* |
10.0.0* |
17.1.1 | N/A | |||
return type of emplace* functions of some containers changed from void to reference
|
P0084R2 | 7.1 | 4.0 | 19.11* | Yes | 17.1.0 | N/A | |||
| std::variant | P0088R3 | 7 | 4 | 19.10* |
10.0.0* |
17.1.0 | N/A | 10.3 | ||
| std::make_from_tuple() | P0209R2 | 7 | 3.9 | 19.10* | Yes | 17.1.0 | N/A | 10.3 | ||
| std::has_unique_object_representations | P0258R2 | 7 | 6 | 19.11* | Yes | 17.1.1 | N/A | 10.3 | ||
| std::gcd() and std::lcm() | P0295R0 | 7 | 4 | 19.11* | Yes | 17.1.0 | N/A | 10.3 | ||
| std::not_fn | P0005R4 P0358R1 |
7 | 3.9 | 19.12* | Yes | 17.1.0 | N/A | 10.3 | ||
| Elementary string conversions: std::to_chars/std::from_chars | P0067R5 | 8* 11 |
7* 14* 20* |
19.14** 19.24* |
10.0.0** |
17.1.1* | N/A | 10.3* | ||
| std::shared_ptr and std::weak_ptr with array support | P0414R2 | 7 | 11 | 19.12* |
12.0.0* |
17.1.1 | N/A | 10.3 | ||
| std::scoped_lock | P0156R2 | 7 | 5 | 19.11* | Yes | 17.1.1 | N/A | 10.3 | ||
| std::byte | P0298R3 | 7 | 5 | 19.11* | Yes | 17.1.1 | N/A | 10.3 | ||
| std::is_aggregate | LWG2911 | 7 | 5 | 19.15* | Yes | 17.1.1 | N/A | 10.3 | ||
| DR17: std::hash<std::filesystem::path> | LWG3657 | 11.4 | 17 | 19.32* | N/A | |||||
| C++17 feature |
Paper(s) |
GCC libstdc++ |
Clang libc++ |
MSVC STL |
Apple Clang* |
IBM Open XL C/C++ for AIX* |
Intel Parallel STL |
Sun/Oracle C++* |
Embarcadero C++ Builder* |
[edit] Notes
- As of 2020-11-20, the latest release of Oracle Developer Studio is 12.6. Its documentation does not mention C++17.
- Cray compiler may have support for some features earlier than 11.0. That version is when it became a derivative of Clang, gaining all of the attendant language feature support of the base compiler. See Cray/HPE document S-2179.
