Showing content from https://en.cppreference.com/w/cpp/language/../language/../compiler_support/26.html below:
Compiler support for C++26 - cppreference.com
* - 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.
C++26 feature Paper(s) 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** Hashing support for std::chrono value classes (FTM)* P2592R3 <rcu>: Read-Copy Update (FTM)* P2545R4 <hazard_pointer>: Hazard pointers (FTM)* P2530R3 ADL-proof std::projected P2538R1 14* 18* 19.38** 16.0.0* constexpr stable sorting (FTM)* P2562R1 15 21 Member std::basic_format_arg::visit() (FTM)* P2637R3 15 19 Member std::variant::visit() (FTM)* P2637R3 15 18 std::is_within_lifetime (FTM)* P2641R4 Extending associative containers with the remaining heterogeneous overloads (FTM)* P2363R5 Enabling the use of std::weak_ptr as keys in unordered associative containers (FTM)* P1901R2 Native handles in file streams (FTM)* P1759R6 14 18 16.0.0* Interfacing string streams with std::string_view (FTM)* P2495R3 19 Interfacing std::bitset with std::string_view (FTM)* P2697R1 18 16.0.0* More constexpr for <cmath> and <complex> (FTM)* (FTM)* P1383R2 4.6 (partial)* Adding the new 2022 SI prefixes on ratios: std::quecto, std::ronto, std::ronna, and std::quetta (FTM)* P2734R0 14 17* std::function_ref: type-erased callable reference (FTM)* P0792R14 std::copyable_function (FTM)* P2548R6 16 std::bind_front, std::bind_back, and std::not_fn to NTTP callables (FTM)* (FTM)* (FTM)* P2714R1 std::submdspan() (FTM)* P2630R4
P3355R1 Freestanding language: Optional ::operator new P2013R5 N/A Freestanding std::char_traits, std::errc and facilities in: <charconv>, <cstdlib>, <cstring>, <cwchar> (FTM)* (FTM)* (FTM)* (FTM)* (FTM)* (FTM)* P2338R4 N/A More freestanding facilities (FTM)* (FTM)* (FTM)* (FTM)* (FTM)* (FTM)* (FTM)* (FTM)* P2198R7 N/A Saturation arithmetic (FTM)* P0543R3 14 18 16.0.0* <debugging>: Debugging support (FTM)* P2546R5
P2810R4 <linalg>: A free function linear algebra interface based on the BLAS (FTM)* P1673R13
P3050R2
P3222R0 Making assert() macro user friendly P2264R7 Runtime format strings (FTM)* P2918R2 14 18 16.0.0* std::span over an initializer list (FTM)* P2447R6 15 18 16.0.0* std::span::at() (FTM)* P2821R5 14 18 16.0.0* Added tuple protocol to std::complex (FTM)* P2819R2 15 19 A new specification for std::generate_canonical P0952R2 19.42* Removing deprecated typedef std::allocator::is_always_equal P2868R3 15 18 16.0.0* Removing function overload of std::basic_string::reserve() that takes no argument P2870R3 18 16.0.0* Removing deprecated Unicode conversion facets (<codecvt>) P2871R3 18 16.0.0* Freestanding: removing std::strtok (FTM)* P2937R0 14 19.40* Freestanding library: partial classes (FTM)* (FTM)* (FTM)* (FTM)* (FTM)* P2407R5 14 19.42* Freestanding library: std::inout, std::expected, std::span (FTM)* (FTM)* (FTM)* (FTM)* P2833R2 14 19.42* DR23: std::basic_const_iterator should follow its underlying typeâs convertibility (FTM)* P2836R1
P2950R0 14 19.40* DR20: std::make_format_args now accepts only lvalue references instead of forwarding references P2905R2 14 18 19.40* 16.0.0* DR20: Fix formatting of code units as integers (FTM)* P2909R4 13.3 18 19.40* 16.0.0* views::concat (FTM)* P2542R8 15 Concatenation of strings and string views (FTM)* P2591R5 15 19 Enabling list-initialization for algorithms (FTM)* P2248R8
P3217R0 15 std::ranges::generate_random (FTM)* P1068R11 Comparisons for std::reference_wrapper, and constraints for comparisons of std::pair, std::tuple, std::optional, and std::variant (FTM)* (FTM)* P2944R3 14 19 (partial)* Padded mdspan layouts (FTM)* P2642R6 New CTAD for std::span and std::mdspan with integral constants P3029R1 19 Atomic maximum and minimum (FTM)* P0493R5 std::formatter<std::filesystem::path> (FTM)* P2845R8 Printing Blank Lines with std::println() (FTM)* P3142R0 14* 19* 19.41** Undeprecate std::polymorphic_allocator::destroy P2875R4 15 19.41* Removing deprecated strstreams P2867R2 19 Removing deprecated std::shared_ptr Atomic Access APIs P2869R4 Removing std::wstring_convert P2872R3 19 DR23: Permit an efficient implementation of std::print (FTM)* P3107R5
P3235R3 19.43* Execution control library (FTM)* P2300R10
P3396R0 std::inplace_vector: dynamically-resizable vector with fixed capacity (FTM)* P0843R14 std::philox_engine: counter-based random number engine (FTM)* P2075R6 std::optional range support (FTM)* P3168R2 std::is_virtual_base_of: type trait for detecting virtual base classes (FTM)* P2985R0 15 20 std::dims for std::mdspan (FTM)* P2389R2 19 DR11: Formal specification of the type of std::ignore P2968R2 15 19 19.42* DR20: Removing the common reference requirement from the indirectly invocable concepts (FTM)* P2997R1 15 19 19.42* Deprecating std::is_trivial and std::is_trivial_v P3247R2 15 21 DR20: Algorithm function objects P3136R1 Yes 14 19.39* 14.0.3* std::ranges::cache_latest_view (FTM)* P3138R5 15 Constraining std::expected equality operators (FTM)* P3379R0 15 std::aligned_accessor: an std::mdspan accessor expressing pointer over-alignment (FTM)* P2897R7 21 std::is_sufficiently_aligned: checks a pointerâs alignment precondition (FTM)* P2897R7 21 std::atomic_ref::address() (FTM)* P2835R7 DR11/20: cv-qualified types in std::atomic and std::atomic_ref P3323R1 19.44* constexpr std::atomic and std::atomic_ref (FTM)* P3309R3 constexpr for specialized memory algorithms (FTM)* P3508R0
P3369R0 15 <stdbit.h> and <stdckdint.h> P3370R1 15 <simd>: data-parallel types (FTM)* (FTM)* P1928R15
P3430R3
P3441R2
P3287R3
P2663R7
P2933R4 A utility for creating execution environments P3325R5 constexpr for exception types, e.g. std::bad_alloc, std::bad_cast etc. (FTM)* P3068R6
P3378R2 Trivial relocatability traits and operations (FTM)* P2786R13 Defang and deprecate std::memory_order::consume P3475R1 Put std::monostate in <utility> P0472R3 15 21 19.50* std::indirect (FTM)* P3019R14 std::polymorphic (FTM)* P3019R14 More constexpr for containers and container adaptors:
std::deque, std::flat_map, std::flat_multimap, std::flat_set, std::flat_multiset, std::forward_list, std::list, std::map, std::multimap, std::queue, std::priority_queue, std::set, std::multiset, std::stack, std::unordered_map, std::unordered_multimap, std::unordered_set, and std::unordered_multiset
(FTM)* (FTM)* (FTM)* (FTM)* (FTM)* (FTM)* (FTM)* (FTM)* (FTM)* (FTM)* (FTM)*
P3372R3 constexpr std::inplace_vector for non-trivial types (FTM)* P3074R7 std::ranges::to_input_view (FTM)* P3137R3 15 std::ranges::approximately_sized_range and std::ranges::reserve_hint (FTM)* P2846R6 <hive>: A bucket-based container that re-uses memory locations from erased elements (FTM)* P0447R28 <contracts>: Contract-violation handling support (FTM)* P2900R14 Standard library hardening (FTM)* (FTM)* (FTM)* (FTM)* (FTM)* (FTM)* (FTM)* (FTM)* (FTM)* (FTM)* (FTM)* (FTM)* (FTM)* (FTM)* P3471R4 15 (partial)* 19.44* (partial)* Freestanding library: <algorithm>, <numeric>, <random>, (<execution>, <memory>)
(FTM)* (FTM)* (FTM)* (FTM)* (FTM)* P2976R1 DR20: Converting contiguous iterators to pointers P3349R0 15
C++26 feature
Paper(s)
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