C++ compiler support

 

C++

Compiler support

Freestanding and hosted

Language

Standard library headers

Named requirements

Feature test macros (C++20)

Language support library

Concepts library (C++20)

Diagnostics library

General utilities library

Strings library

Containers library

Iterators library

Ranges library (C++20)

Algorithms library

Numerics library

Localizations library

Input/output library

Filesystem library (C++17)

Regular expressions library (C++11)

Atomic operations library (C++11)

Thread support library (C++11)

Technical specifications

Symbols index

External libraries

 

Compiler support

C++11

C++14

C++17

C++20

C++23

 

The following table presents compiler support for new C++ features. These include C++11, C++14, C++17, C++20, and later accepted revisions (C++23/C++2b) to the standard, as well as various technical specifications.

C++2b features

Note that this list may change, as the draft C++2b standard evolves.

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
Literal suffix for (signed) size_t	P0330R8	11	13
Make () more optional for lambdas	P1102R2	11	13
if consteval	P1938R3	12	14
Removing Garbage Collection Support	P2186R2	12
DR: C++ Identifier Syntax using Unicode Standard Annex 31	P1949R7	12	14
DR: Allow Duplicate Attributes	P2156R1	11	13
Narrowing contextual conversions in static_assert and constexpr if	P1401R5	9	13 (partial)* 14
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
Deducing this	P0847R7
auto(x) and auto{x}	P0849R8	12
Change scope of lambda trailing-return-type	P2036R3
#elifdef and #elifndef	P2334R1	12	13
Non-literal variables (and labels and gotos) in constexpr functions	P2242R3	12
Consistent character literal encoding	P2316R2	Yes	Yes
Character sets and encodings	P2314R4		Yes
Extend init-statement to allow alias-declaration	P2360R0	12	14
Multidimensional subscript operator	P2128R6	12
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
<stdatomic.h>	P0943R6			19.31*
std::is_scoped_enum	P1048R1	11	12	19.30*
basic_string::contains(), basic_string_view::contains()	P1679R3	11	12	19.30*
std::to_underlying	P1682R3	11	13	19.30*
Relaxing requirements for time_point<>::clock	P2212R2	N/A		N/A
DR: std::visit() for classes derived from std::variant	P2162R2	12	13	19.20** 19.30*
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			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
Iterator pair constructors for std::stack and std::queue	P1425R4	12		19.31*
Non-deduction context for allocators in container deduction guides	P1518R2	12	13	19.31*
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*
std::invoke_r()	P2136R3	12		19.31*
Range constructor for std::basic_string_view	P1989R2	11		19.30*
Default template arguments for pair's forwarding constructor	P1951R1	12	14	19.30*
Remove Garbage Collection and Reachability-Based Leak Detection (library support)	P2186R2	12	14	19.30*
DR: join_view should join all views of ranges	P2328R1	11.2		19.30*
DR: view does not require default_initializable	P2325R3	12		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	12	13 (partial)*	19.31*
DR: std::format() improvements	P2216R3
DR: lazy_split_view and redesigned split_view	P2210R2	12		19.31*
Alias std::pmr::stacktrace	P2301R1
zip	P2321R2
Heterogeneous erasure overloads for associative containers	P2077R3
std::byteswap()	P1272R4		14	19.31*
Printing volatile T*	P1147R1	12	14	19.31*
basic_string::resize_and_overwrite()	P1072R10	12		19.31*
Monadic operations for std::optional	P0798R8	12
std::move_only_function	P0288R9	12
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
DR: Fix ranges::istream_view	P2432R1	12		19.31*
DR: Add support for non-const-formattable types to std::format	P2418R2
DR: What is a view	P2415R2			19.31*
DR: fixing locale handling in chrono formatters	P2372R3			19.31*
DR: Cleaning up integer-class types	P2393R1
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

C++20 features

C++20 core language features

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

C++20 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
std::endian	P0463R1	8	7	19.22*	10.0.0*
Extending std::make_shared() to support arrays	P0674R1			19.27*
Floating-point atomic	P0020R6	10		19.22*
Synchronized buffered (std::basic_osyncstream)	P0053R7	11		19.29 (16.10)*
constexpr for <algorithm> and <utility>	P0202R3	10	8 (partial) 12	19.26*	10.0.1* (partial) 12.0.5*
More constexpr for <complex>	P0415R1	9	7 (partial)	19.27*	10.0.0* (partial)
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	19.20* (partial) 19.28 (16.9)*	10.0.0* (partial)
std::remove_cvref	P0550R2	9	6	19.20*	10.0.0*
[[nodiscard]] in the standard library	P0600R1	9	7 (partial)	19.13* (partial) 19.22*	10.0.0* (partial)
Using std::move in numeric algorithms	P0616R0	9	12	19.23*
Utility to convert a pointer to a raw pointer	P0653R2	8	6	19.22*	Yes
Atomic std::shared_ptr and std::weak_ptr	P0718R2			19.27*
std::span	P0122R7	10	7	19.26*	10.0.0*
Calendar and timezone	P0355R7	11 (partial)	7 (partial)	19.29 (16.10)*	10.0.0* (partial)
<version>	P0754R2	9	7	19.22*	10.0.0*
Comparing unordered containers	P0809R0		Yes	16.0*	Yes
ConstexprIterator requirements	P0858R0	9	12	19.11*
std::basic_string::reserve() should not shrink	P0966R1	11	8	19.25*	10.0.1*
Atomic Compare-And-Exchange with padding bits	P0528R3			19.28 (16.8)*
std::atomic_ref	P0019R8	10		19.28 (16.8)*
contains() member function of associative containers, e.g. std::map::contains()	P0458R2	9	9 (partial)* 13	19.21*	11.0.3*
DR: Guaranteed copy elision for piecewise construction	P0475R1	9	Yes	19.29 (16.10)*	Yes
std::bit_cast()	P0476R2	11	14	19.27*
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)*
Improving the return value of erase-like algorithms	P0646R1	9	10	19.21*
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*
Constexpr for std::swap() and swap related functions	P0879R0	10	12 (partial) 13	19.26*
std::type_identity	P0887R1	9	8	19.21*	10.0.1*
Concepts library	P0898R3	10	13	19.23*	12.0.0* (partial)
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*
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)*	19.22*
Utility functions to implement uses-allocator construction	P0591R4	9		19.29 (16.10)*
DR: std::variant and std::optional should propagate copy/move triviality	P0602R4	8.3	8	19.11*	10.0.1*
A sane std::variant converting constructor	P0608R3	10	9	19.29 (16.10)*	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)	19.29 (16.10)*
Heterogeneous lookup for unordered containers	P0919R3 P1690R1	11	12	19.23* (P0919R3) 19.25* (P1690R1)
<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		19.28 (16.9)*
Smart pointer creation with default initialization (e.g. make_unique_for_overwrite)	P1020R1 P1973R1			19.28 (16.9)*
Misc constexpr bits	P1032R1	10	13	19.28 (16.8)*
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		19.26*
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)
Standard library header units	P1502R1	11		19.29 (16.10)*
polymorphic_allocator<> as a vocabulary type	P0339R6	9		19.28 (16.9)*
std::execution::unseq	P1001R2	9		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*
DR: Make create_directory() intuitive	P1164R1	8.3	12	19.20*
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*
Efficient access to std::basic_stringbuf’s buffer	P0408R7	11		19.29 (16.10)*
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*
Text formatting	P0645R10		14 (partial)*	19.29 (16.10)*
std::stop_token and std::jthread	P0660R10	10		19.28 (16.9)*
constexpr std::allocator and related utilities	P0784R7	10	12	19.29 (16.10)*
constexpr std::string	P0980R1	12		19.29 (16.10)* 19.30**
constexpr std::vector	P1004R2	12		19.29 (16.10)* 19.30**
Input range adaptors	P1035R7	10		19.29 (16.10)*
constexpr std::invoke() and related utilities	P1065R2	10	12	19.28 (16.8)*
Atomic waiting and notifying, std::counting_semaphore, std::latch and std::barrier	P1135R6	11	11	19.28 (16.8)*
std::source_location	P1208R6	11		19.29 (16.10)*
Adding <=> to the standard library	P1614R2	10	14	19.29 (16.10)*
constexpr default constructor of std::atomic and std::atomic_flag	P0883R2	10	13	19.26*
constexpr for numeric algorithms	P1645R1	10	12	19.26*
Safe integral comparisons	P0586R2	10	13	19.27*
C++20 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

C++17 features

C++17 core language features

C++17 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
New auto rules for direct-list-initialization	N3922	5	3.8	19.0 (2015)*	Yes	4.10.1	17.0			10.3		17.7	11.0
static_assert with no message	N3928	6	2.5	19.10*	Yes	4.12	18.0			10.3		17.7	11.0
typename in a template template parameter	N4051	5	3.5	19.0 (2015)*	Yes	4.10.1	17.0			10.3		17.7	Yes*
Removing trigraphs	N4086	5	3.5	16.0*	Yes	5.0				10.3		19.1	11.0
Nested namespace definition	N4230	6	3.6	19.0 (Update 3)*	Yes	4.12	17.0			10.3		17.7	11.0
Attributes for namespaces and enumerators	N4266	4.9 (partial)* 6	3.6	19.0 (2015)*	Yes	4.11	17.0			10.3		17.7	11.0
u8 character literals	N4267	6	3.6	19.0 (2015)*	Yes	4.11	17.0			10.3		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			10.3		19.1	11.0
Fold Expressions	N4295	6	3.6	19.12*	Yes	4.14	19.0			10.3		18.1	11.0
Unary fold expressions and empty parameter packs	P0036R0	6	3.9	19.12*	Yes	4.14	19.0			10.3		19.1	11.0
Remove Deprecated Use of the register Keyword	P0001R1	7	3.8	19.11*	Yes	4.13	18.0			10.3		17.7	11.0
Remove Deprecated operator++(bool)	P0002R1	7	3.8	19.11*	Yes	4.13	18.0			10.3		17.7	11.0
Make exception specifications part of the type system	P0012R1	7	4	19.12*	Yes	4.14	19.0			10.3		19.1	11.0
Aggregate initialization of classes with base classes	P0017R1	7	3.9	19.14*	Yes	5.0	19.0.1			10.3		19.1	11.0
__has_include in preprocessor conditionals	P0061R1	5	Yes	19.11*	Yes	4.13	18.0			10.3		17.7	11.0
DR: New specification for inheriting constructors (DR1941 et al)	P0136R1	7	3.9	19.14*	Yes	6.1				10.3		19.1	11.0
Lambda capture of *this	P0018R3	7	3.9	19.11*	Yes	4.14	19.0			10.3		18.1	11.0
Direct-list-initialization of enumerations	P0138R2	7	3.9	19.11*	Yes	4.14	18.0			10.3		19.1	11.0
constexpr lambda expressions	P0170R1	7	5	19.11*	Yes	4.14	19.0			10.3		18.1	11.0
Differing begin and end types in range-based for	P0184R0	6	3.9	19.10*	Yes	4.12	18.0			10.3		17.7	11.0
[[fallthrough]] attribute	P0188R1	7	3.9	19.10*	Yes	4.13	18.0			10.3		17.7	11.0
[[nodiscard]] attribute	P0189R1	7	3.9	19.11*	Yes	4.13	18.0			10.3		17.7	11.0
[[maybe_unused]] attribute	P0212R1	7	3.9	19.11*	Yes	4.13	18.0			10.3		17.7	11.0
Hexadecimal floating-point literals	P0245R1	3.0	Yes	19.11*	Yes	4.13	18.0			10.3		17.7	11.0
Using attribute namespaces without repetition	P0028R4	7	3.9	19.11*	Yes	4.13	18.0			10.3		17.7	11.0
Dynamic memory allocation for over-aligned data	P0035R4	7	4	19.12*	10.0.0*	4.14	19.0			10.3		19.1	11.0
Class template argument deduction	P0091R3	7	5	19.14*	Yes	5.0	19.0.1			10.3		19.1	11.0
Non-type template parameters with auto type	P0127R2	7	4	19.14*	Yes	5.0	19.0.1			10.3		19.1	11.0
Guaranteed copy elision	P0135R1	7	4	19.13*	Yes	5.0	19.0.1			10.3		19.1	11.0
Replacement of class objects containing reference members	P0137R1	7	6	19.14*	Yes	5.0				10.3		19.1	11.0
Stricter expression evaluation order	P0145R3	7	4	19.14*	Yes	5.0	19.0.1			10.3		19.1	11.0
Structured Bindings	P0217R3	7	4	19.11*	Yes	4.14	19.0			10.3		18.1	11.0*
Ignore unknown attributes	P0283R2	Yes	3.9	19.11*	Yes	4.13	18.0			10.3		17.7	11.0
constexpr if statements	P0292R2	7	3.9	19.11*	Yes	4.14	19.0			10.3		18.1	11.0
init-statements for if and switch	P0305R1	7	3.9	19.11*	Yes	4.14	18.0			10.3		18.1	11.0
Inline variables	P0386R2	7	3.9	19.12*	Yes	4.14	19.0			10.3		18.1	11.0
Removing dynamic exception specifications	P0003R5	7	4	19.10*	Yes	4.14	19.0			10.3		19.1	11.0
Pack expansions in using-declarations	P0195R2	7	4	19.14*	Yes	5.0	19.0			10.3		19.1	11.0
DR: Matching of template template-arguments excludes compatible templates	P0522R0	7	4	19.12*	Yes	5.0	19.0.1			10.3		19.1	11.0
C++17 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++17 library features

C++17 feature	Paper(s)	GCC libstdc++	Clang libc++	MSVC STL	Apple Clang	Intel Parallel STL	Sun/Oracle C++ Standard Library	Embarcadero C++ Builder Standard Library	Cray C++ Standard Library
std::void_t	N3911	6	3.6	19.0 (2015)*	Yes	N/A		10.3
std::uncaught_exceptions()	N4259	6	3.7	19.0 (2015)*	Yes	N/A		10.3
std::size(), std::empty() and std::data()	N4280	6	3.6	19.0 (2015)*	Yes	N/A		10.3
Improving std::pair and std::tuple	N4387	6	4	19.0 (Update 2)*	Yes	N/A		10.3
std::bool_constant	N4389	6	3.7	19.0 (2015)*	Yes	N/A		10.3
std::shared_mutex (untimed)	N4508	6	3.7	19.0 (Update 2)*	Yes	N/A		10.3
Type traits variable templates	P0006R0	7	3.8	19.0 (Update 2)*	Yes	N/A		10.3
Logical operator type traits	P0013R1	6	3.8	19.0 (Update 2)*	Yes	N/A		10.3
Standardization of Parallelism TS	P0024R2	9*		19.14*		18.0*
std::clamp()	P0025R0	7	3.9	19.0 (Update 3)*	10.0.0*	N/A		10.3
Hardware interference size	P0154R1	12		19.11*		N/A		10.3
(nothrow-)swappable traits	P0185R1	7	3.9	19.0 (Update 3)*	10.0.0*	N/A		10.3
File system library	P0218R1	8	7	19.14*	11.0.0*	N/A		10.3
std::string_view	N3921 P0220R1	7	4	19.10*	10.0.0*	N/A		10.3
std::any	P0220R1	7	4	19.10*	10.0.0*	N/A		10.3
std::optional	P0220R1	7	4	19.10*	10.0.0*	N/A		10.3
Polymorphic memory resources	P0220R1	9		19.13*		N/A		10.3
Mathematical special functions	P0226R1	7		19.14*		N/A		10.3
C++17 should refer to C11 instead of C99	P0063R3	9	7	19.0 (2015)* (partial)*	10.0.0*	N/A
Splicing Maps and Sets	P0083R3	7	8	19.12*	10.0.0*	N/A
std::variant	P0088R3	7	4	19.10*	10.0.0*	N/A		10.3
std::make_from_tuple()	P0209R2	7	3.9	19.10*	Yes	N/A		10.3
std::has_unique_object_representations	P0258R2	7	6	19.11*	Yes	N/A		10.3
std::gcd() and std::lcm()	P0295R0	7	4	19.11*	Yes	N/A		10.3
std::not_fn	P0005R4 P0358R1	7	3.9	19.12*	Yes	N/A		10.3
Elementary string conversions, including FP (Floating-Point) values support	P0067R5	8 (no FP) 11	7 (no FP)	19.14* (no FP)* 19.24*	10.0.0* (no FP)	N/A		10.3 (no FP from_chars)
std::shared_ptr and std::weak_ptr with array support	P0414R2	7	11	19.12*	12.0.0*	N/A		10.3
std::scoped_lock	P0156R2	7	5	19.11*	Yes	N/A		10.3
std::byte	P0298R3	7	5	19.11*	Yes	N/A		10.3
std::is_aggregate	LWG2911	7	5	19.15*	Yes	N/A		10.3
C++17 feature	Paper(s)	GCC libstdc++	Clang libc++	MSVC STL	Apple Clang	Intel Parallel STL	Sun/Oracle C++ Standard Library	Embarcadero C++ Builder Standard Library	Cray C++ Standard Library

Notes:

• As of 2020-11-20, the latest release of Oracle Developer Studio is 12.6. Its documentation does not mention C++17.

C++14 features

C++14 core language features

C++14 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
Tweaked wording for contextual conversions	N3323	4.9	3.4	18.0*	Yes	4.9	16.0	13.1.2*	5.15	10.3	8.6	16.1	9.0
Binary literals	N3472	4.3 (GNU) 4.9	2.9	19.0 (2015)*	Yes	4.10	11.0	13.1.2*	5.14	10.3	8.6	2015	9.0
decltype(auto), Return type deduction for normal functions	N3638	4.8 (partial)* 4.9	3.3 (partial)* 3.4	19.0 (2015)*	Yes	4.9	15.0	13.1.2*	5.15	10.3	8.6	16.1	9.0
Initialized/Generalized lambda captures (init-capture)	N3648	4.5 (partial) 4.9	3.4	19.0 (2015)*	Yes	4.10	15.0	16.1.1*	5.15	10.3	8.6	16.1	9.0
Generic lambda expressions	N3649	4.9	3.4	19.0 (2015)*	Yes	4.10	16.0	13.1.2*	5.15	10.3	8.6	16.1	9.0
Variable templates	N3651	5	3.4	19.0 (Update 2)*	Yes	4.11	17.0	13.1.2*	5.15	10.3	8.6	17.4	9.0
Extended constexpr	N3652	5	3.4	19.10*	Yes	4.11	17.0	13.1.2*	5.15	10.3	8.6	17.4	9.0
Aggregates with member initializers (NSDMI)	N3653	5	3.3	19.10*	Yes	4.9	16.0	16.1.1*	5.14	10.3	8.6	16.1	9.0
Omitting/extending memory allocations	N3664	N/A	3.4	N/A	Yes	N/A	N/A	N/A	N/A	10.3	8.6	17.4	N/A
[[deprecated]] attribute	N3760	4.9	3.4	19.0 (2015)*	Yes	4.9	15.0* 16.0	13.1.2*	5.14	10.3	8.6	16.1	9.0
Sized deallocation	N3778	5	3.4	19.0 (2015)*	Yes	4.10.1	17.0	16.1.1*	5.14	10.3	8.6	16.1
Single quote as digit separator	N3781	4.9	3.4	19.0 (2015)*	Yes	4.10	16.0	13.1.2*	5.14	10.3	8.6	2015	9.0
C++14 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++14 library features

C++14 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
constexpr for <complex>	N3302	5	3.4	19.0 (2015)*	Yes	5.15	10.3	8.6
Transparent operator functors	N3421	4.9	3.4	18.0*	Yes	5.15	10.3	8.6
std::result_of and SFINAE	N3462	5	Yes	19.0 (Update 2)*	Yes	5.15	10.3	8.6
constexpr for <chrono>	N3469	5	3.4	19.0 (2015)*	Yes	5.15	10.3	8.6
constexpr for <array>	N3470	5	3.4	19.0 (2015)*	Yes	5.15	10.3	8.6
constexpr for <initializer_list>, <utility> and <tuple>	N3471	5	3.4	19.0 (2015)*	Yes	5.15	10.3	8.6
Improved std::integral_constant	N3545	5	3.4	19.0 (2015)*	Yes	5.15	10.3	8.6
User-defined literals for <chrono> and <string>	N3642	5	3.4	19.0 (2015)*	Yes	5.15	10.3	8.6
Null forward iterators	N3644	5 (partial) 10	3.4	19.0 (2015)*	Yes	5.15	10.3	8.6
std::quoted	N3654	5	3.4	19.0 (2015)*	Yes	5.15	10.3	8.6
std::make_unique	N3656	4.9	3.4	18.0*	Yes	5.15	10.3	8.6
Heterogeneous associative lookup	N3657	5	3.4	19.0 (2015)*	Yes	5.15	10.3	8.6
std::integer_sequence	N3658	5	3.4	19.0 (2015)*	Yes	5.15	10.3	8.6
std::shared_timed_mutex	N3659	5	3.4	19.0 (2015)*	Yes	5.15	10.3	8.6
std::exchange	N3668	5	3.4	19.0 (2015)*	Yes	5.15	10.3	8.6
fixing constexpr member functions without const	N3669	5	3.4	19.0 (2015)*	Yes	5.15	10.3	8.6
std::get<T>()	N3670	5	3.4	19.0 (2015)*	Yes	5.15	10.3	8.6
Dual-Range std::equal, std::is_permutation, std::mismatch	N3671	5	3.4	19.0 (2015)*	Yes	5.15	10.3	8.6
C++14 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

C++11 features

C++11 core language features

C++11 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	HP aCC	Digital Mars C++
C99 preprocessor	N1653	4.3	Yes	19.0 (2015)* (partial)* 19.26*	Yes	4.1	11.1	10.1	5.9	Yes	8.4	2015	7.0	A.06.25	Yes
static_assert	N1720	4.3	2.9	16.0*	Yes	4.1	11.0	11.1	5.13	Yes	8.4	2015	7.0	A.06.25	8.52
Right angle brackets	N1757	4.3	Yes	14.0*	Yes	4.1	11.0	12.1	5.13	Yes	8.4	2015	7.0
Extended friend declarations	N1791	4.7	2.9	16.0* (partial) 18.0*	Yes	4.1	11.1* 12.0	11.1	5.13	Yes	8.4	2015	7.0	A.06.25
long long	N1811	Yes	Yes	14.0*	Yes	Yes	Yes	Yes	Yes	Yes	8.4	2015	7.0	Yes	Yes
Compiler support for type traits	N1836 N2518* N2984 N3142	4.3* 4.8* 5	3.0	14.0* (partial)* 19.0 (2015)*	Yes	4.0	10.0	13.1.3	5.13	Yes	8.4	2015		6.16
auto	N1984	4.4	Yes	16.0*	Yes	3.9	11.0 (v0.9) 12.0	11.1	5.13	Yes	8.4	2015	7.0	A.06.25
Delegating constructors	N1986	4.7	3.0	18.0*	Yes	4.7	14.0	11.1	5.13	Yes	8.4	2015	7.0	A.06.28
extern template	N1987	3.3	Yes	12.0*	Yes	3.9	9.0	11.1	5.13	Yes	8.4	2015	7.0	A.06.25
constexpr	N2235	4.6	3.1	19.0 (2015)*	Yes	4.6	13.0* 14.0	12.1* 13.1	5.13	Yes	8.4	2015	7.0	A.06.28
Template aliases	N2258	4.7	3.0	18.0*	Yes	4.2	12.1	13.1.1*	5.13	Yes	8.4	2015	7.0	A.06.27
char16_t and char32_t	N2249	4.4	2.9	19.0 (2015)*	Yes	4.4	12.1* 14.0	13.1.1*	5.13	Yes	8.4	2015	7.0	A.06.27	8.52
alignas	N2341	4.8	3.0	19.0 (2015)*	Yes	4.8	15.0	13.1.2*	5.13	Yes	8.6	2015	7.0
alignof	N2341	4.5	2.9	19.0 (2015)*	Yes	4.8	15.0	13.1.2*	5.13	Yes	8.4	2015	7.0
Defaulted and deleted functions	N2346	4.4	3.0	18.0*	Yes	4.1	12.0	13.1	5.13	Yes	8.4	2015	7.0	A.06.25
Strongly-typed enum	N2347	4.4	2.9	17.0*	Yes	4.0	13.0	12.1	5.13	Yes	8.4	2015	7.0	A.06.25
Atomic operations	N2427	4.4	3.1	17.0*	Yes	Yes	13.0	13.1.2*	5.14	Yes	8.4	2015
nullptr	N2431	4.6	2.9	16.0*	Yes	4.2	12.1	13.1	5.13	Yes	8.4	2015	7.0	A.06.27	8.52
Explicit conversion operators	N2437	4.5	3.0	18.0*	Yes	4.4	13.0	12.1	5.13	Yes	8.4	2015	7.0	A.06.27
ref-qualifiers	N2439	4.8.1	2.9	19.0 (2015)*	Yes	4.7	14.0	13.1.2*	5.13	Yes	8.4	2015	7.0	A.06.28
Unicode string literals	N2442	4.4	3.0	19.0 (2015)*	Yes	4.7	11.0*	10.1* 13.1.1*	5.7	Yes	8.4	2015	7.0	A.06.28	8.52
Raw string literals	N2442	4.5	Yes	18.0*	Yes	4.7	14.0	13.1.1*, except AIX xlC 13.1.3	5.13	Yes	8.4	2015	7.0	A.06.28	8.52
Inline namespaces	N2535	4.4	2.9	19.0 (2015)*	Yes	4.5	14.0	11.1	5.13	Yes	8.4	2015	7.0	A.06.28
Inheriting constructors	N2540	4.8	3.3	19.0 (2015)*	Yes	4.8	15.0	13.1.1*	5.13	Yes	8.4	2015	7.0
Trailing function return types	N2541	4.4	2.9	16.0*	Yes	4.1	12.0	12.1	5.13	Yes	8.4	2015	7.0	A.06.27
Unrestricted unions	N2544	4.6	3.0	19.0 (2015)*	Yes	4.6	14.0*	13.1.2*	5.13	Yes	8.4	2015	7.0	A.06.28
Variadic templates	N2242 N2555	4.3 (N2242) 4.4	2.9	18.0*	Yes	4.3 (N2242) 4.3	12.1	11.1 (N2242)	5.13	Yes	8.4	2015	7.0	A.06.27
Expression SFINAE	N2634	4.4	2.9	19.14*	Yes	4.2	12.1			Yes	8.4	2015	7.0
Local and unnamed types as template parameters	N2657	4.5	2.9	16.0*	Yes	4.2	12.0	13.1.2*	5.13	Yes	8.4	2015	7.0	A.06.27
Thread-local storage	N2659	4.4 (partial) 4.8	3.3*	16.0* (partial) 19.0 (2015)*	Yes	4.8	11.1 (partial) 15.0*	10.1 (partial)* 13.1.2 (partial)*	5.9 (partial)	Yes	8.4	2015			8.52 (partial)
Dynamic initialization and destruction with concurrency (magic statics)	N2660	4.3	2.9	19.0 (2015)*	Yes	Yes	11.1*	13.1.2*	5.13	Yes	8.4	2015		A.06.25
Garbage Collection and Reachability-Based Leak Detection	N2670
Initializer lists	N2672	4.4	3.1	18.0*	Yes	4.5	13.0 (partial) 14.0	13.1.2*	5.13	Yes	8.4	2015	7.0	A.06.28
Non-static data member initializers	N2756	4.7	3.0	18.0*	Yes	4.6	14.0	13.1.2*	5.13	Yes	8.4	2015	7.0	A.06.28
Attributes	N2761	4.8	3.3	19.0 (2015)*	Yes	4.2	12.1	13.1.1*	5.13	Yes	8.4	2015	7.0	A.06.27
Forward (opaque) enum declarations	N2764	4.6	3.1	17.0*	Yes	4.5	11.1 (partial) 14.0	12.1	5.13	Yes	8.4	2015	7.0
User-defined literals	N2765	4.7	3.1	19.0 (2015)*	Yes	4.8	15.0	13.1.2*	5.14	Yes	8.4	2015	7.0
Rvalue references	N2118 N2844 CWG1138	4.3 (N2118) 4.5	2.9	16.0* (N2844) 17.0*	Yes	4.5	11.1 (N2118) 12.0 (N2844) 14.0	12.1	5.13	Yes	8.4	2015	7.0*	A.06.25
Lambda expressions	N2550 N2658 N2927	4.5	3.1	16.0* (N2658) 17.0*	Yes	4.1	12.0	13.1.2*	5.13	Yes	8.4	2015	7.0	A.06.25
Range-for loop	N2930 N3271	4.6	3.0	17.0*	Yes	4.5	13.0	13.1.2*	5.13	Yes	8.4	2015	7.0	A.06.28
noexcept	N3050	4.6	3.0	19.0 (2015)*	Yes	4.5	14.0	13.1.1*	5.13	Yes	8.4	2015	7.0	A.06.28
Defaulted move special member functions	N3053	4.6	3.0	19.0 (2015)*	Yes	4.5	14.0		5.13	Yes	8.4	2015	7.0	A.06.25
override and final	N2928 N3206 N3272	4.7	2.9	14.0* (partial) 17.0*	Yes	4.8	12.0 (N2928) 14.0	13.1.1*	5.13	Yes	8.4	2015	7.0
decltype	N2343 N3276	4.3 (N2343) 4.8.1	2.9	16.0*	Yes	4.2 (N2343) 4.8	11.0 (N2343) 12.0	11.1 (N2343)	5.13	Yes	8.4	2015	7.0	A.06.25	8.52 (N2343)
C++11 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	HP aCC	Digital Mars C++

C++11 library features

C++11 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
Type traits	N1836 N2240 N2244 N2255 N2342 N2984 N3142	4.3* 4.8* 5	3.0	14.0* (partial)* 19.0 (2015)*	Yes	5.13	Yes	8.4
Garbage Collection and Reachability-Based Leak Detection (library support)	N2670	6 (no-op)	3.4 (no-op)	19.0 (2015)* (no-op)	Yes (no-op)
Money, Time, and hexfloat I/O manipulators	N2071 N2072	5	3.8	19.0 (2015)*	Yes	5.15
Disallowing COW (copy-on-write) string	N2668	5	Yes	Yes	Yes	Yes
C++11 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

* - hover over the version number to see notes

References

Individual vendor compatibility checklists (these are more up-to-date than the table above)

• GCC (Updated 2021-02)
  • C++11 core language support status (complete as of 4.8.1, except for n2670, which is implemented by no compiler and removed in C++23)
  • C++14 core language support status (complete as of 5.1)
  • C++17 core language support status (complete as of 7.1)
  • C++20 core language support status(complete as of 11.0, except part of modules)
  • C++23 core language support status
  • C++11 library support status (complete as of 5.1)
  • C++14 library support status (complete as of 5.1)
  • C++17 library support status
  • C++20 library support status
  • Technical Specifications support status
  • Core language defect report status
• Clang++ (Updated 2021-07)
  • C++11 core language support status (complete as of 3.3)
  • C++11 library support status (complete as of 2012-07-29)
  • C++14 core language support status (complete as of 3.4)
  • C++14 library support status (complete as of 3.5)
  • C++17 core language support status (complete as of 5.0)
  • C++17 library support status
  • C++20 core language support status
  • C++20 library support status
  • C++23 core language support status
  • C++23 library support status
  • Technical Specifications support status
  • Core language defect report status
• Apple Clang (Updated 2019-06)
  • Xcode toolchain versions on Wikipedia
  • Xcode release notes
• Microsoft Visual Studio (updated 2020-03)
  • Upcoming releases Visual Studio 2019 change log
  • C++17/20 Features and Fixes in Visual Studio 2019
  • STL Features and Fixes in VS 2017 15.8
  • C++17 Announcing: MSVC Conforms to the C++ Standard (complete as of 15.7)
  • C++17 Features And STL Fixes In VS 2017 15.5
  • C++17 Features And STL Fixes In VS 2017 15.3
  • C++11/C++14/C++17 core language and library status in VS2017.3
  • C++11/C++14/C++17 core language support status
    • C++11/14/17 core language support status in VS2010, VS2012, VS2013, and VS2015
    • VS2013 vs. VS2015 CTP0
    • VS2013 vs. VS2015 CTP1
    • VS2013 vs. VS2015 CTP3 (includes the roadmap table)
    • VS2015 ("VS14") preview
    • VS2015 ("VS14") release candidate (C++11 remains incomplete, but C++17 support appears)
    • VS2019
  • C++11 and C++14 library support status
  • C++11/14/17 Features In VS 2015 RTM including core language and standard library (including technical specifications)
  • C++14/17 features in VS 2015 Update 2 standard library library is feature complete up to current C++17 with few minor issues (some defect reports, some constexprs, etc)
  • C++14/17 Features and STL Fixes in VS “15” Preview 5 including a detailed C++17 status table
• Intel C++ (Updated 2018-11)
  • C++11 core language support status (complete as of 15.0)
  • C++14 core language support status (functionally complete as of 17.0 - N3664 is an optimization)
  • C++17 core language support status (incomplete)
  • C++17 features of Intel 19.0 beta
  • Intel does not ship an implementation of the C++ standard library, except for
    • Parallel STL (an implementation of the C++17 standard library algorithms with support for execution policies)
  • Intel's compatibility with versions of libstdc++ from GCC
• EDG (Updated 2019-10)
  • C++11 core language support status
  • C++14 core language support status
  • C++17 core language support status
  • C++20 core language support status
  • EDG does not ship an implementation of the C++ standard library
• Oracle C++ (updated 2017-07)
  • Version number is compiler version, not Oracle Studio version
  • C++11 core language support status in 5.13
    • Missing C++11 support added in 5.14 (page has a typo, and still says 5.13)
  • C++14 features added in 5.14
    • Full C++14 support added in 5.15.
  • Oracle ships 4 implementations of the C++ standard library:
    • libCstd (RogueWave Standard Library version 2), predates C++98
    • stlport4 (STLport Standard Library version 4.5.3), predates C++03
    • stdcxx4 (Apache Standard Library version 4), predates C++11
    • libstdc++ (GCC runtime library, support for C++11 and C++14 depending on release)
• IBM XL C++ (updated 2018-05)
  • IBM XL C++ for Linux
    • Core language support status: C++11 complete as of 13.1.6, C++14 partial in 16.1.0
    • IBM does not ship an implementation of C++ standard library for Linux (uses GNU libstdc++)
  • IBM XL C++ for AIX
    • Core language support status: C++11 partial in 13.1.3 and 16.1.0 (xlC frontend), complete in 16.1.0 (xlclang frontend)
    • IBM ships a version of Dinkumware library for AIX with full support for C++ TR1, including <regex>, but no C++11
    • IBM XL C/C++ compilers features
• HP aCC
  • HP aC++ A.06.28 release notes (including C++11 core language features)
  • HP ships a version of RogueWave STL 2.0 implementation of the C++98 standard library
• Digital Mars C++
  • C++11 core language support status
• Embarcadero C++
  • Language features compliance status (RAD Studio 10.1 Berlin), including C++11 features supported by legacy and Clang-enhanced compilers (based on Clang 3.3)
  • Language features compliance status (RAD Studio 10.3 Rio), including C++11 features supported by legacy compilers and C++11, C++14, and C++17 features supported by the Clang-enhanced compilers (based on Clang 5.0)
• Cray (updated 2020-02)
  • Cray C and C++ Reference Manual (8.4) For version 8.4, claims all of C++14 is supported except alignas
  • Cray C and C++ Reference Manual (8.6) For version 8.6, claims all of C++14 is supported
  • Cray C and C++ Reference Manual (9.1) for version 9.1 doesn't claim support beyond C++14
• Portland Group (PGI) (updated 2019-01)
  • Release notes for 2016 claim C++14 support, except "generalized constexpr and constexpr member functions and implicit const, variable templates, clarifying memory allocation (merged allocation)"
  • Release notes for 2018
  • Reference manual of PGI 19.1
  • PGI does not ship an implementation of C++ standard library
• Nvidia Cuda nvcc (updated 2021-03-04)
  • CUDA C Programming Guide (v11.2.1)
  • "All C++17 language features are supported in nvcc version 11.0 and later, subject to restrictions described here."
  • NVCC does not ship an implementation of C++ standard library
• Texas Instruments (updated 2018-05)
  • cl430 version v18.1.0 claims C++14 support
• Analog Devices (updated 2018-05)
  • CrossCore Embedded Studio 2.8.0 for SHARC claims C++11 support.