C++ compiler support

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

C++2a features

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

C++2a core language features

C++2a feature	Paper(s)	GCC	Clang	MSVC	EDG eccp	Intel C++	IBM XLC++	Sun/Oracle C++	Embarcadero C++ Builder	Cray	Portland Group (PGI)	Nvidia nvcc
Allow lambda-capture `[=, this]`	P0409R2	8	6	19.22*	5.1
`__VA_OPT__`	P0306R4	8 (partial)*	6		5.1
Designated initializers	P0329R4	4.7 (partial)* 8	3.0 (partial)*	19.21*	5.1
template-parameter-list for generic lambdas	P0428R2	8	9	19.22*	5.1
Default member initializers for bit-fields	P0683R1	8	6		5.1
Initializer list constructors in class template argument deduction	P0702R1	8	6	19.14*	5.0
const&-qualified pointers to members	P0704R1	8	6	19.0*	5.1
Concepts	P0734R0	6 (TS only)
Lambdas in unevaluated contexts	P0315R4	9
Three-way comparison operator	P0515R3		8 (partial)*	19.20*
Simplifying implicit lambda capture	P0588R1	8
init-statements for range-based for	P0614R1	9	8
Default constructible and assignable stateless lambdas	P0624R2	9	8	19.22*	5.1
const mismatch with defaulted copy constructor	P0641R2	9	8		5.1
Access checking on specializations	P0692R1	Yes	8 (partial)*
ADL and function templates that are not visible	P0846R0	9	9	19.21*
Less eager instantiation of constexpr functions	P0859R0	5.2 (partial)* 9
Attributes `[[likely]]` and `[[unlikely]]`	P0479R5	9			5.1
Make `typename` more optional	P0634R3	9
Pack expansion in lambda init-capture	P0780R2	9	9	19.22*
Attribute `[[no_unique_address]]`	P0840R2	9			5.1
DR: Relaxing the structured bindings customization point finding rules	P0961R1	8	8	19.21*	5.1
DR: Relaxing the range-`for` loop customization point finding rules	P0962R1	8
DR: Allow structured bindings to accessible members	P0969R0	8	8	19.21*	5.1
Contracts	P0542R5
Destroying operator delete	P0722R3	9	6
Class types in non-type template parameters	P0732R2	9
Deprecate implicit capture of `this` via `[=]`	P0806R2	9		19.22*	5.1
`explicit(bool)`	P0892R2	9	9	19.22*	5.1
Integrating feature-test macros	P0941R2	5	3.4	19.15* (partial) 19.20*	5.0
Prohibit aggregates with user-declared constructors	P1008R1	9	8	19.20*	5.1
constexpr virtual function	P1064R0	9	9		5.1
Consistency improvements for comparisons	P1120R0		8 (partial)	19.22*
`char8_t`	P0482R6	9	7	19.22*	5.1
`std::is_constant_evaluated()`	P0595R2	9	9		5.1
constexpr `try`-`catch` blocks	P1002R1	9	8		5.1
Immediate functions	P1073R3				5.1
Nested inline namespaces	P1094R2	9	8		5.1
Yet another approach for constrained declarations	P1141R2
constexpr `dynamic_cast` and polymorphic `typeid`	P1327R1		9		5.1
Changing the active member of a union inside constexpr	P1330R0	9	9	19.10*	5.1
Coroutines	P0912R5		8 (partial)
Parenthesized initialization of aggregates	P0960R3
DR: Array size deduction in new-expressions	P1009R2				5.1
Modules	P1103R3		8 (partial)
Stronger Unicode requirements	P1041R4 P1139R2		Yes
`<=> != ==`	P1185R2			19.22*
Lambda capture and storage class specifiers of structured bindings	P1091R3 P1381R1		8 (partial)
C++2a feature	Paper(s)	GCC	Clang	MSVC	EDG eccp	Intel C++	IBM XLC++	Sun/Oracle C++	Embarcadero C++ Builder	Cray	Portland Group (PGI)	Nvidia nvcc

C++2a library features

C++2a feature	Paper(s)	GCC libstdc++	Clang libc++	MSVC Standard Library	Sun/Oracle C++ Standard Library	Embarcadero C++ Builder Standard Library	Cray C++ Standard Library
`std::endian`	P0463R1	8	7	19.22*
`std::remove_cvref`	P0550R2	9	6	19.20*
Extending std::make_shared() to support arrays	P0674R1
Floating point atomic	P0020R6			19.22*
Synchronized buffered ostream	P0053R7
`constexpr` for `<algorithm>` and `<utility>`	P0202R3		8
More `constexpr` for `<complex>`	P0415R1	9	7 (partial)
Make std::memory_order a scoped enumeration	P0439R0	9	9
String prefix and suffix checking	P0457R2	9	6	19.21*
Library support for `operator<=>` `<compare>`	P0515R3		7	19.20* (partial)
`[[nodiscard]]` in the standard library	P0600R1	9	7 (partial)	19.13* (partial)
Utility to convert a pointer to a raw pointer	P0653R2	8	6	19.22*
Atomic `std::shared_ptr` and `std::weak_ptr`	P0718R2
`std::span`	P0122R7		7
Calendar and timezone	P0355R7		7 (partial)
`<version>`	P0754R2	9	7	19.22*
Comparing unordered containers	P0809R0			16.0*
ConstexprIterator requirements	P0858R0			19.11*
std::basic_string::reserve() should not shrink	P0966R1		8
`std::atomic_ref`	P0019R8
`contains()` member function of associative containers	P0458R2	9		19.21*
DR: Guaranteed copy elision for piecewise construction	P0475R1	9
`std::bit_cast()`	P0476R2
Integral power-of-2 operations	P0556R3	9
Improving the return value of erase-like algorithms	P0646R1	9		19.21*
`std::destroying_delete`	P0722R3	9
`std::is_nothrow_convertible`	P0758R1	9	9
Add shift to `<algorithm>`	P0769R2			19.21*
`std::type_identity`	P0887R1	9	8	19.21*
Concepts library	P0898R3
`constexpr` comparison operators for `std::array`	P1023R0		8
`std::unwrap_ref_decay` and `std::unwrap_reference`	P0318R1	9	8	19.21*
`std::bind_front()`	P0356R5	9
std::reference_wrapper for incomplete types	P0357R3	9	8
Fixing `operator>>(basic_istream&, CharT*)`	P0487R1		8	19.23*
Library support for `char8_t`	P0482R6	9		19.22*
Utility functions to implement uses-allocator construction	P0591R4	9
DR: std::variant and std::optional should propagate copy/move triviality	P0602R4	8.3	8	19.11*
std::function's move constructor should be `noexcept`	P0771R1	7.2	6	19.22*
The One Ranges Proposal	P0896R4
`<chrono>` `zero()`, `min()`, and `max()` should be `noexcept`	P0972R0	9	8	19.14*
`constexpr` in std::pointer_traits	P1006R1	9	8
`std::assume_aligned()`	P1007R3	9
Remove comparison operators of `std::span`	P1085R2		8
Consistent container erasure	P1209R0	9	8
`std::lerp()` and `std::midpoint()`	P0811R3	9	9
Usability enhancements for `std::span`	P1024R3		9
DR: Make `create_directory()` Intuitive	P1164R1			19.20*
`std::ssize()` and unsigned extent for `std::span`	P1227R2		9
Traits for (un)bounded arrays	P1357R0	9	9
C++2a feature	Paper(s)	GCC libstdc++	Clang libc++	MSVC Standard Library	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	EDG eccp	Intel C++	IBM XLC++	Sun/Oracle C++	Embarcadero C++ Builder	Cray	Portland Group (PGI)	Nvidia nvcc
New `auto` rules for direct-list-initialization	N3922	5	3.8	19.0*	4.10.1	17.0					17.7
`static_assert` with no message	N3928	6	2.5	19.10*	4.12	18.0					17.7
`typename` in a template template parameter	N4051	5	3.5	19.0*	4.10.1	17.0					17.7
Removing trigraphs	N4086	5	3.5	16.0*	5.0	19.0.1
Nested namespace definition	N4230	6	3.6	19.0*	4.12	17.0					17.7
Attributes for namespaces and enumerators	N4266	4.9 (partial)* 6	3.6	19.0*	4.11	17.0					17.7
`u8` character literals	N4267	6	3.6	19.0*	4.11	17.0					17.7
Allow constant evaluation for all non-type template arguments	N4268	6	3.6	19.12*	5.0	19.0.1
Fold Expressions	N4295	6	3.6	19.12*	4.14	19.0					18.1
Unary fold expressions and empty parameter packs	P0036R0	6	3.9	19.12*	4.14
Remove Deprecated Use of the `register` Keyword	P0001R1	7	3.8	19.11*	4.13	18.0					17.7
Remove Deprecated `operator++(bool)`	P0002R1	7	3.8	19.11*	4.13	18.0					17.7
Make exception specifications part of the type system	P0012R1	7	4	19.12*	4.14	19.0
Aggregate initialization of classes with base classes	P0017R1	7	3.9	19.14*	5.0	19.0.1
`__has_include` in preprocessor conditionals	P0061R1	5	Yes	19.11*	4.13	18.0					17.7
DR: New specification for inheriting constructors (DR1941 et al)	P0136R1	7	3.9	19.14*
Lambda capture of `*this`	P0018R3	7	3.9	19.11*	4.14	19.0					18.1
Direct-list-initialization of enumerations	P0138R2	7	3.9	19.11*	4.14	18.0
constexpr lambda expressions	P0170R1	7	5	19.11*	4.14	19.0					18.1
Differing begin and end types in range-based for	P0184R0	6	3.9	19.10*	4.12	18.0					17.7
`[[fallthrough]]` attribute	P0188R1	7	3.9	19.10*	4.13	18.0					17.7
`[[nodiscard]]` attribute	P0189R1	7	3.9	19.11*	4.13	18.0					17.7
`[[maybe_unused]]` attribute	P0212R1	7	3.9	19.11*	4.13	18.0					17.7
Hexadecimal floating-point literals	P0245R1	3.0	Yes	19.11*	4.13	18.0					17.7
Using attribute namespaces without repetition	P0028R4	7	3.9	19.11*	4.13	18.0					17.7
Dynamic memory allocation for over-aligned data	P0035R4	7	4	19.12*	4.14
Class template argument deduction	P0091R3	7	5	19.14*	5.0	19.0.1					19.1
Non-type template parameters with `auto` type	P0127R2	7	4	19.14*	5.0	19.0.1					19.1
Guaranteed copy elision	P0135R1	7	4	19.13*	5.0	19.0.1					19.1
Replacement of class objects containing reference members	P0137R1	7	6	19.14*	5.0
Stricter expression evaluation order	P0145R3	7	4	19.14*	5.0	19.0.1
Structured Bindings	P0217R3	7	4	19.11*	4.14	19.0					18.1
Ignore unknown attributes	P0283R2	Yes	3.9	19.11*	4.13	18.0					17.7
constexpr if statements	P0292R2	7	3.9	19.11*	4.14	19.0					18.1
init-statements for if and switch	P0305R1	7	3.9	19.11*	4.14	18.0					18.1
Inline variables	P0386R2	7	3.9	19.12*	4.14	19.0					18.1
Removing Deprecated Exception Specifications from C++17	P0003R5	7	4	19.10*	4.14	19.0
Pack expansions in using-declarations	P0195R2	7	4	19.14*	5.0
DR: Matching of template template-arguments excludes compatible templates	P0522R0	7	4	19.12*	5.0	19.0.1
C++17 feature	Paper(s)	GCC	Clang	MSVC	EDG eccp	Intel C++	IBM XLC++	Sun/Oracle C++	Embarcadero C++ Builder	Cray	Portland Group (PGI)	Nvidia nvcc

C++17 library features

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

C++14 features

C++14 core language features

C++14 feature	Paper(s)	GCC	Clang	MSVC	EDG eccp	Intel C++	IBM XLC++	Sun/Oracle C++	Embarcadero C++ Builder	Cray	Portland Group (PGI)	Nvidia nvcc
Tweaked wording for contextual conversions	N3323	4.9	3.4	18.0*	4.9	16.0	13.1.2*	5.15		8.6	16.1	9.0
Binary literals	N3472	4.3 (GNU) 4.9	2.9	19.0*	4.10	11.0	13.1.2*	5.14		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*	4.9	15.0	13.1.2*	5.15		8.6	16.1	9.0
Initialized/Generalized lambda captures (init-capture)	N3648	4.5 (partial) 4.9	3.4	19.0*	4.10	15.0		5.15		8.6	16.1	9.0
Generic (polymorphic) lambda expressions	N3649	4.9	3.4	19.0*	4.10	16.0	13.1.2*	5.15		8.6	16.1	9.0
Variable templates	N3651	5	3.4	19.0*	4.11	17.0	13.1.2*	5.15		8.6	17.4	9.0
Extended constexpr	N3652	5	3.4	19.10*	4.11	17.0	13.1.2*	5.15		8.6	17.4	9.0
Member initializers and aggregates (NSDMI)	N3653	5	3.3	19.10*	4.9	16.0		5.14		8.6	16.1	9.0
Clarifying memory allocation (avoiding/fusing allocations)	N3664	N/A	3.4	N/A	N/A			N/A		8.6	17.4
`[[deprecated]]` attribute	N3760	4.9	3.4	19.0*	4.9	15.0* 16.0	13.1.2*	5.14		8.6	16.1	9.0
Sized deallocation	N3778	5	3.4	19.0*	4.10.1	17.0		5.14		8.6	16.1
Single quote as digit separator	N3781	4.9	3.4	19.0*	4.10	16.0	13.1.2*	5.14		8.6	2015	9.0
C++14 feature	Paper(s)	GCC	Clang	MSVC	EDG eccp	Intel C++	IBM XLC++	Sun/Oracle C++	Embarcadero C++ Builder	Cray	Portland Group (PGI)	Nvidia nvcc

C++14 library features

C++14 feature	Paper(s)	GCC libstdc++	Clang libc++	MSVC Standard Library	Sun/Oracle C++ Standard Library	Embarcadero C++ Builder Standard Library	Cray C++ Standard Library
`constexpr` for `<complex>`	N3302	5	3.4	19.0*	5.15		8.6
std::result_of and SFINAE	N3462	5	Yes	19.0*	5.15	Yes	8.6
`constexpr` for `<chrono>`	N3469	5	3.4	19.0*	5.15		8.6
`constexpr` for `<array>`	N3470	5	3.4	19.0*	5.15		8.6
`constexpr` for `<initializer_list>`, `<utility>` and `<tuple>`	N3471	5	3.4	19.0*	5.15		8.6
Improved std::integral_constant	N3545	5	3.4	19.0*	5.15		8.6
User-defined literals for `<chrono>` and `<string>`	N3642	5	3.4	19.0*	5.15		8.6
Null forward iterators	N3644	5 (partial)	3.4	19.0*	5.15		8.6
std::quoted	N3654	5	3.4	19.0*	5.15		8.6
Heterogeneous associative lookup	N3657	5	3.4	19.0*	5.15		8.6
std::integer_sequence	N3658	5	3.4	19.0*	5.15		8.6
std::shared_timed_mutex	N3659	5	3.4	19.0*	5.15		8.6
std::exchange	N3668	5	3.4	19.0*	5.15		8.6
fixing `constexpr` member functions without `const`	N3669	5	3.4	19.0*	5.15		8.6
`std::get<T>()`	N3670	5	3.4	19.0*	5.15		8.6
Dual-Range std::equal, std::is_permutation, std::mismatch	N3671	5	3.4	19.0*	5.15		8.6
C++14 feature	Paper(s)	GCC libstdc++	Clang libc++	MSVC Standard Library	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	EDG eccp	Intel C++	IBM XLC++	Sun/Oracle C++	Embarcadero C++ Builder	Cray	Portland Group (PGI)	Nvidia nvcc	HP aCC	Digital Mars C++
C99 preprocessor	N1653	4.3	Yes	19.0* (partial)*	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*	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*	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*	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	8.4	2015	7.0	Yes	Yes
Type traits	N1836	4.3	3.0	14.0*	4.0	10.0	13.1.3	5.13	Yes	8.4	2015		6.16
`auto`	N1984	4.4	Yes	16.0*	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*	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*	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* (partial)	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*	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*	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*	4.8	15.0	13.1.2*	5.13	Yes	8.6	2015	7.0
`alignof`	N2341	4.5	2.9	19.0*	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*	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*	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	13.0	13.1.2*	5.14	Yes	8.4	2015
nullptr	N2431	4.6	2.9	16.0*	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*	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*	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*	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*	4.7	14.0	13.1.1*	5.13	Yes	8.4	2015	7.0	A.06.28	8.52
Inline namespaces	N2535	4.4	2.9	19.0*	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*	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*	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*	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*	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*	4.2	12.1			Yes	8.4	2015	7.0
Local and unnamed types as template parameters	N2657	4.5	2.9	16.0*	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*	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*	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*	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*	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*	4.2	12.1	13.1.1*	5.13	Yes	8.4	2015	7.0	A.06.27
Forward enum declarations	N2764	4.6	3.1	17.0*	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*	4.8	15.0	13.1.2*	5.14	Yes	8.4	2015	7.0
Lambda expressions	N2550 N2658 N2927	4.5	3.1	16.0* (N2658) 17.0*	4.1	12.0	13.1.2*	5.13	Yes	8.4	2015	7.0 - claims N2927	A.06.25
Range-for loop	N2930	4.6	3.0	17.0*	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*	4.5	14.0	13.1.1*	5.13	Yes	8.4	2015	7.0	A.06.28
Rvalue references	N2118 N2844 CWG1138 N3053	4.3 (N2118) 4.5 (CWG1138) 4.6	Yes	16.0* (N2844) 17.0* (CWG1138) 19.0*	4.5	11.1 (N2118) 12.0 (N2844) 14.0	12.1 (CWG1138)	5.13	Yes	8.4	2015	7.0 - lists N2118	A.06.25
override and final	N2928 N3206 N3272	4.7	2.9	14.0* (partial) 17.0*	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*	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	EDG eccp	Intel C++	IBM XLC++	Sun/Oracle C++	Embarcadero C++ Builder	Cray	Portland Group (PGI)	Nvidia nvcc	HP aCC	Digital Mars C++

C++11 library features

C++11 feature	Paper(s)	GCC libstdc++	Clang libc++	MSVC Standard Library	Sun/Oracle C++ Standard Library	Embarcadero C++ Builder Standard Library	Cray C++ Standard Library
Garbage Collection and Reachability-Based Leak Detection (library support)	N2670	6 (no-op)	3.4 (no-op)	19.0* (no-op)
Money, Time, and hexfloat I/O manipulators	N2071 N2072	5	3.8	19.0*	5.15
C++11 feature	Paper(s)	GCC libstdc++	Clang libc++	MSVC Standard Library	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 2019-05)

C++11 core language support status (complete as of 4.8.1, except for n2670, which no compiler implements)
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
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

Clang++ (Updated 2019-04)

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)
Technical Specifications support status
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
Core language defect report status

Microsoft Visual Studio (updated 2019-05)

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)
VS2017

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 2019-04)

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.
IBM ships a version of Dinkumware library for AIX with full support for C++ TR1, including <regex>, but no C++11

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 2018-01)

[1] 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

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 2019-03)

CUDA C Programming Guide (v10.1.105)
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.

Language
Standard Library Headers
Freestanding and hosted implementations
Named requirements
Language support library
Concepts library (C++20)
Diagnostics library
Utilities library
Strings library
Containers library
Iterators library
Ranges library (C++20)
Algorithms library
Numerics library
Input/output library
Localizations library
Regular expressions library (C++11)
Atomic operations library (C++11)
Thread support library (C++11)
Filesystem library (C++17)
Technical Specifications