Compiler support for C++26
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< cpp | compiler support
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DRnn - the number nn after "DR" denotes target C++ revision the Defect Report is applied to, e.g., DR20 → C++20.
[edit] C++26 core language features
| C++26 feature |
Paper(s) |
GCC |
Clang |
MSVC |
Apple Clang |
EDG eccp |
Intel C++ |
Nvidia HPC C++ (ex PGI)* |
Nvidia nvcc |
Cray |
|
|---|---|---|---|---|---|---|---|---|---|---|---|
| DR98: Removing undefined behavior from lexing | P2621R3 | Yes | 3.3 | 16.0.0* | |||||||
| DR98: Making non-encodable string literals ill-formed | P1854R4 | 14 | 14 | 16.0.0* | |||||||
| Unevaluated strings | P2361R6 | 14 | 17 (partial)* 18 |
16.0.0* | |||||||
Adding @, $, and ` to the basic character set
|
P2558R2 | 15 | Yes | 16.0.0* | |||||||
| constexpr cast from void* (FTM)* | P2738R1 | 14 | 17 | ||||||||
| DR20: On the ignorability of standard attributes | P2552R3 | 15 | Yes | ||||||||
| DR11: Static storage for braced initializers | P2752R3 | 14 | |||||||||
| User-generated static_assert messages (FTM)* | P2741R3 | 14 | 17 | ||||||||
| Placeholder variables with no name (FTM)* | P2169R4 | 14 | 18 | ||||||||
| Pack indexing (FTM)* | P2662R3 | 15 | 19 | ||||||||
| Removing deprecated arithmetic conversion on enumerations | P2864R2 | 14 | 18 | ||||||||
| DR11/20: Template parameter initialization | P2308R1 | 9 | 18 | ||||||||
| Disallow binding a returned reference to a temporary | P2748R5 | 14 | 19 | ||||||||
| Attributes for structured bindings (FTM)* | P0609R3 | 15 | 19 | ||||||||
Erroneous behavior for uninitialized reads, [[indeterminate]] attribute
|
P2795R5 | ||||||||||
| = delete("reason"); (FTM)* | P2573R2 | 15 | 19 | ||||||||
| Variadic friends (FTM)* | P2893R3 | 15 | 20 | ||||||||
| DR98: Clarifying rules for brace elision in aggregate initialization | P3106R1 | Yes | 17 | ||||||||
| DR20: Disallow module declarations to be macros | P3034R1 | 15 | |||||||||
| DR11: Trivial infinite loops are not undefined behavior | P2809R3 | 14 | 19 | ||||||||
| constexpr placement new (FTM)* (FTM)* | P2747R2 | 15 | 20 | ||||||||
| Structured binding declaration as a condition (FTM)* | P0963R3 | 15 | 6 (partial)* 21 |
||||||||
| Ordering of constraints involving fold expressions (FTM)* | P2963R3 | 19 | |||||||||
| Deleting a pointer to an incomplete type should be ill-formed | P3144R2 | 15 | 19 | 6.7 | |||||||
| Structured bindings can introduce a pack (FTM)* | P1061R10 | 21 | |||||||||
| constexpr structured bindings and references to constexpr variables | P2686R5 | 6.7 | |||||||||
| constexpr exceptions: [1], [2] (FTM)* | P3068R6 | ||||||||||
| Oxford variadic comma | P3176R1 | 15 | 20 | ||||||||
| Removing deprecated array comparisons | P2865R6 | 15 | 20 | ||||||||
#embed (FTM)*
|
P1967R14 | 15 | 19* | ||||||||
| Concept and variable-template template-parameters (FTM)* | P2841R7 | ||||||||||
| Trivial relocatability (FTM)* | P2786R13 | 21* | |||||||||
| Trivial unions (FTM)* | P3074R7 | ||||||||||
| Observable checkpoints | P1494R5 | ||||||||||
| Contracts (FTM)* | P2900R14 | ||||||||||
| C++26 feature |
Paper(s) |
GCC |
Clang |
MSVC |
Apple Clang |
EDG eccp |
Intel C++ |
Nvidia HPC C++ (ex PGI)* |
Nvidia nvcc |
Cray |
[edit] C++26 library features
| C++26 feature |
Paper(s) |
GCC libstdc++ |
Clang libc++ |
MSVC STL |
Apple Clang* |
|
|---|---|---|---|---|---|---|
| Testing for success or failure of <charconv> functions (FTM)* | P2497R0 | 14 | 18 | 16.0.0* | ||
| std::text_encoding: text encodings identification (FTM)* | P1885R12 P2862R1 |
14 | ||||
| Arithmetic overloads of std::to_string and std::to_wstring use std::format (FTM)* | P2587R3 | 14 | ||||
| Type checking format args (FTM)* | P2757R3 | 15 | ||||
| Formatting pointers (FTM)* | P2510R3 | 14* | 17* | 19.40** | ||