C++ compiler support

 

C++

Compiler support

Freestanding and hosted

Language

Standard library

Standard library headers

Named requirements

Feature test macros (C++20)

Language support library

Concepts library (C++20)

Metaprogramming library (C++11)

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)

Concurrency support library (C++11)

Execution support library (C++26)

Technical specifications

Symbols index

External libraries

 

C++ language

General topics
Preprocessor Comments	Keywords Escape sequences
Flow control
Conditional execution statements
if	switch
Iteration statements (loops)
for range-for (C++11)	while do-while
Jump statements
continue - break	goto - return
Functions
Function declaration
Lambda function expression
inline specifier
Dynamic exception specifications (until C++17*)
noexcept specifier (C++11)
Exceptions
throw-expression try block	handler
Namespaces
Namespace declaration	Namespace aliases
Types
Fundamental types Enumeration types Function types	Class/struct types Union types
Specifiers
const/volatile decltype (C++11) auto (C++11)	constexpr (C++11) consteval (C++20) constinit (C++20)
Storage duration specifiers
Initialization
Default-initialization Value-initialization Zero-initialization Copy-initialization Direct-initialization	Aggregate initialization List-initialization (C++11)   Constant initialization Reference initialization

Expressions
Value categories Order of evaluation	Operators Operator precedence
Alternative representations
Literals
Boolean - Integer - Floating-point
Character - String - nullptr (C++11)
User-defined (C++11)
Utilities
Attributes (C++11)
Types
typedef declaration
Type alias declaration (C++11)
Casts
Implicit conversions static_cast const_cast	Explicit conversions dynamic_cast reinterpret_cast
Memory allocation
new expression	delete expression
Classes
Class declaration Constructors this pointer	Access specifiers friend specifier
Class-specific function properties
Virtual function override specifier (C++11)   final specifier (C++11)	explicit (C++11) static
Special member functions
Default constructor Copy constructor Move constructor (C++11)	Copy assignment Move assignment (C++11) Destructor
Templates
Class template Function template	Template specialization Parameter packs (C++11)
Miscellaneous
Inline assembly	History of C++

 

The following table presents compiler support for new C++ features. These include C++11, C++14, C++17, and later accepted revisions 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 feature	Paper(s)	Version	GCC	Clang	MSVC	EDG eccp	Intel C++	IBM XLC++	Sun/Oracle C++	Embarcadero C++ Builder	Cray	Portland Group (PGI)	HP aCC	Digital Mars C++
Concepts	P0734R0	6.1 (TS only)
Default member initializers for bit-fields	P0683R1		6
const&-qualified pointers to members	P0704R1		6
Allow lambda-capture [=, this]	P0409R2		6
__VA_OPT__	P0306R4		SVN
Designated initializers	P0329R4	4.7 (C version)	3.0 (C version?)
template-parameter-list for generic lambdas	P0428R2
Initializer list constructors in class template argument deduction	P0702R1		6
Endian, just endian	P0463R1
Extending std::make_shared to support arrays	P0674R1
C++ feature	Paper(s)	Version	GCC	Clang	MSVC	EDG eccp	Intel C++	IBM XLC++	Sun/Oracle C++	Embarcadero C++ Builder	Cray	Portland Group (PGI)	HP aCC	Digital Mars C++

C++17 features

C++17 feature	Paper(s)	Version	GCC	Clang	MSVC	EDG eccp	Intel C++	IBM XLC++	Sun/Oracle C++	Embarcadero C++ Builder	Cray	Portland Group (PGI)	HP aCC	Digital Mars C++
New auto rules for direct-list-initialization	N3922	5.0	3.8	19.0*		4.10.1	17.0							17.7
static_assert with no message	N3928	6	2.5	19.1*		4.12	18.0							17.7
typename in a template template parameter	N4051	5.0	3.5	19.0*		4.10.1	17.0							17.7
Removing trigraphs	N4086	5.1	3.5	16.0*
Nested namespace definition	N4230	6	3.6	19.0*		4.12	17.0							17.7
Attributes for namespaces and enumerators	N4266	4.9 (namespaces) / 6 (enumerators)	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
Fold Expressions	N4295	6	3.6			4.14
Remove Deprecated Use of the register Keyword	P0001R1	7	3.8	19.1*		4.13	18.0							17.7
Remove Deprecated operator++(bool)	P0002R1	7	3.8	19.1*		4.13	18.0							17.7
Removing Deprecated Exception Specifications from C++17	P0003R5	7	4			4.14
Make exception specifications part of the type system	P0012R1	7	4			4.14
Aggregate initialization of classes with base classes	P0017R1	7	3.9
Lambda capture of *this	P0018R3	7	3.9	19.1*		4.14
Using attribute namespaces without repetition	P0028R4	7	3.9	19.1*		4.13	18.0							17.7
Dynamic memory allocation for over-aligned data	P0035R4	7	4			4.14
Unary fold expressions and empty parameter packs	P0036R0	6	3.9			4.14
__has_include in preprocessor conditionals	P0061R1	5.0	Yes	19.1*		4.13	18.0							17.7
Template argument deduction for class templates	P0091R3	7	5
Non-type template parameters with auto type	P0127R2	7	4
Guaranteed copy elision	P0135R1	7	4			4.15
New specification for inheriting constructors (DR1941 et al)	P0136R1	7	3.9
Direct-list-initialization of enumerations	P0138R2	7	3.9	19.1*		4.14	18.0
Stricter expression evaluation order	P0145R3	7	4
constexpr lambda expressions	P0170R1	7	5	19.1*		4.14
Differing begin and end types in range-based for	P0184R0	6	3.9	19.1*		4.12	18.0							17.7
[[fallthrough]] attribute	P0188R1	7	3.9	19.1*		4.13	18.0							17.7
[[nodiscard]] attribute	P0189R1	7	3.9	19.1*		4.13	18.0							17.7
Pack expansions in using-declarations	P0195R2	7	4
[[maybe_unused]] attribute	P0212R1	7	3.9	19.1*		4.13	18.0							17.7
Structured Bindings	P0217R3	7	4	19.1*		4.14	18.0
Hexadecimal floating-point literals	P0245R1	3.0	Yes			4.13	18.0							17.7
Ignore unknown attributes	P0283R2	Yes	3.9			4.13	18.0							17.7
constexpr if statements	P0292R2	7	3.9	19.1*		4.14
init-statements for if and switch	P0305R1	7	3.9	19.1*		4.14	18.0
Inline variables	P0386R2	7	3.9*			4.14
DR: Matching of template template-arguments excludes compatible templates	P0522R0	7	4
Standardization of Parallelism TS	P0024R2						18.0*
std::uncaught_exceptions()	N4259	6	3.7	19.0*
Splicing Maps and Sets	P0083R3	7				N/A
Improving std::pair and std::tuple	N4387	Yes	4	19.0*		N/A	N/A
std::shared_mutex (untimed)	N4508	6	3.7	19.0*		N/A	N/A
Elementary string conversions	P0067R5					N/A
std::string_view	N3921	7	4.0	19.1*		N/A
C++ feature	Paper(s)	Version	GCC	Clang	MSVC	EDG eccp	Intel C++	IBM XLC++	Sun/Oracle C++	Embarcadero C++ Builder	Cray	Portland Group (PGI)	HP aCC	Digital Mars C++

C++14 features

C++14 feature	Paper(s)	Version	GCC	Clang	MSVC	EDG eccp	Intel C++	IBM XLC++	Sun/Oracle C++	Embarcadero C++ Builder	Cray	Portland Group (PGI)	HP aCC	Digital Mars C++
Tweaked wording for contextual conversions	N3323	4.9	3.4	18.0*		4.9	16.0				5.15			16.1
Binary literals	N3472	4.3/4.9	2.9	19.0*		4.10	11.0				5.14			2015
decltype(auto), Return type deduction for normal functions	N3638	4.8/4.9	3.3/3.4	19.0*		4.9	15.0				5.15			16.1
Initialized/Generalized lambda captures (init-capture)	N3648	4.5/4.9	3.4	19.0*		4.10	15.0				5.15			16.1
Generic (polymorphic) lambda expressions	N3649	4.9	3.4	19.0*		4.10	16.0				5.15			16.1
Variable templates	N3651	5.0	3.4	19.0*		4.11	17.0				5.15			17.4
Extended constexpr	N3652	5	3.4	19.1*		4.11	17.0				5.15			17.4
Member initializers and aggregates (NSDMI)	N3653	5	3.3	19.1*		4.9	16.0				5.14			16.1
Clarifying memory allocation (avoiding/fusing allocations)	N3664	N/A	3.4	N/A		N/A					N/A			17.4
Deprecated attribute	N3760	4.9	3.4	19.0*		4.9	15.0* 16.0				5.14			16.1
Sized deallocation	N3778	5	3.4	19.0*		4.10.1	17.0				5.14			16.1
Single quote as digit separator	N3781	4.9	3.4	19.0*		4.10	16.0				5.14			2015
std::result_of and SFINAE	N3462	5.0	Yes	19.0*		N/A	N/A				5.15	Yes		N/A
constexpr for <complex>	N3302	5.0	3.4	19.0*		N/A	N/A				5.15
constexpr for <chrono>	N3469	5.0	3.4	19.0*		N/A	N/A				5.15
constexpr for <array>	N3470	5.0	3.4	19.0*		N/A	N/A				5.15
constexpr for <initializer_list>, <utility> and <tuple>	N3471	5.0	3.4	19.0*		N/A	N/A				5.15
Improved std::integral_constant	N3545	5.0	3.4	19.0*		N/A	N/A				5.15
User-defined literals for <chrono> and <string>	N3642	5.0	3.4	19.0*		N/A	N/A				5.15
Null forward iterators	N3644	5.0*	3.4	19.0*		N/A	N/A				5.15
std::quoted	N3654	5.0	3.4	19.0*		N/A	N/A				5.15
Heterogeneous associative lookup	N3657	5.0	3.4	19.0*		N/A	N/A				5.15
std::integer_sequence	N3658	5.0	3.4	19.0*		N/A	N/A				5.15
std::shared_timed_mutex	N3659	5.0	3.4	19.0*		N/A	N/A				5.15
std::exchange	N3668	5.0	3.4	19.0*		N/A	N/A				5.15
fixing constexpr member functions without const	N3669	5.0	3.4	19.0*		N/A	N/A				5.15
std::get<T>()	N3670	5.0	3.4	19.0*		N/A	N/A				5.15
Dual-Range std::equal, std::is_permutation, std::mismatch	N3671	5.0	3.4	19.0*		N/A	N/A				5.15
C++ feature	Paper(s)	Version	GCC	Clang	MSVC	EDG eccp	Intel C++	IBM XLC++	Sun/Oracle C++	Embarcadero C++ Builder	Cray	Portland Group (PGI)	HP aCC	Digital Mars C++

C++11 features

C++11 feature	Paper(s)	Version	GCC	Clang	MSVC	EDG eccp	Intel C++	IBM XLC++	Sun/Oracle C++	Embarcadero C++ Builder	Cray	Portland Group (PGI)	HP aCC	Digital Mars C++
alignas	N2341	4.8	3.0	19.0*		4.8	15.0				5.13	Yes		2015
alignof	N2341	4.5	2.9	19.0*		4.8	15.0				5.13	Yes	8.4	2015
Atomic operations	N2427	4.4	3.1	17.0*		Yes	13.0				5.14	Yes	8.4	2015
auto	N1984(v1.0)	4.4(v1.0)	Yes	16.0 (v0.9)*		4.1(v0.9)	11.0(v0.9) 12.0(v1.0)				5.13	Yes	8.4	2015		A.06.25
C99 preprocessor	N1653	4.3	Yes	19.0*		4.1	11.1				5.9	Yes	8.4	2015
constexpr	N2235	4.6	3.1	19.0*		4.6	13.0* 14.0				5.13	Yes	8.4	2015		A.06.28
decltype	v1.0: N2343 v1.1: N3276	4.3(v1.0) 4.8.1(v1.1)	2.9	16.0 (v1.1)*		4.1(v1.0)	11.0(v1.0) 12.0(v1.1)				5.13	Yes	8.4	2015		A.06.25	8.52(v1.0)
Defaulted and deleted functions	N2346	4.4	3.0	18.0*		4.1	12.0				5.13	Yes	8.4	2015		A.06.25
Delegating constructors	N1986	4.7	3.0	18.0*		4.7	14.0				5.13	Yes	8.4	2015		A.06.28
Explicit conversion operators	N2437	4.5	3.0	18.0*		4.4	13.0				5.13	Yes	8.4	2015		A.06.27
Extended friend declarations	N1791	4.7	2.9	16.0*		4.1	11.1* 12.0				5.13	Yes	8.4	2015		A.06.25
extern template	N1987	3.3	Yes	12.0*		3.9	9.0				5.13	Yes	8.4	2015		A.06.25
Forward enum declarations	N2764	4.6	3.1	17.0*		4.5	11.1* 14.0				5.13	Yes	8.4	2015
Inheriting constructors	N2540	4.8	3.3	19.0*		4.8	15.0				5.13	Yes	8.4	2015
Initializer lists	N2672	4.4	3.1	18.0*		4.5	13.0* 14.0				5.13	Yes	8.4	2015		A.06.28
Lambda expressions	v0.9: N2550 v1.0: N2658 v1.1: N2927	4.5(v1.1)	3.1	16.0*		4.1(v1.1)	12.0(v1.1)				5.13	Yes	8.4	2015		A.06.25
Local and unnamed types as template parameters	N2657	4.5	2.9	16.0*		4.2	12.0				5.13	Yes	8.4	2015
long long	N1811	Yes	Yes	Yes		Yes	Yes				Yes	Yes	8.4	2015		Yes	Yes
Inline namespaces	N2535	4.4	2.9	19.0*		4.5	14.0				5.13	Yes	8.4	2015		A.06.28
New character types	N2249	4.4	2.9	19.0*		4.4	12.1* 14.0				5.13	Yes	8.4	2015		A.06.27	8.52
Trailing function return types	N2541	4.4	2.9	16.0*		4.1	12.0				5.13	Yes	8.4	2015		A.06.27
nullptr	N2431	4.6	2.9	16.0*		4.2	12.1				5.13	Yes	8.4	2015		A.06.27	8.52
Unicode string literals	N2442	4.4	3.0	19.0*		4.7	11.0*				5.7	Yes	8.4	2015		A.06.28	8.52
Raw string literals	N2442	4.5	Yes	18.0*		4.7	14.0				5.13	Yes	8.4	2015		A.06.28	8.52
User-defined literals	N2765	4.7	3.1	19.0*		4.8	15.0				5.14	Yes	8.4	2015
Right angle brackets	N1757	4.3	Yes	14.0*		4.1	11.0				5.13	Yes	8.4	2015
R-value references	v1.0: N2118 v2.0: N2844 v2.1: N2844+ v3.0: N3053	4.3(v1.0) 4.5(v2.1) 4.6(v3.0)	Yes	16.0*		4.5(v3.0)	11.1(v1.0) 12.0(v2.0) 14.0(v3.0)				5.13	Yes	8.4	2015		A.06.25
static_assert	N1720	4.3	2.9	16.0*		4.1	11.0				5.13	Yes	8.4	2015		A.06.25	8.52
Strongly-typed enum	N2347	4.4	2.9	17.0*		4.0	13.0				5.13	Yes	8.4	2015		A.06.25
Template aliases	N2258	4.7	3.0	18.0*		4.2	12.1				5.13	Yes	8.4	2015		A.06.27
Thread-local storage	N2659	4.4* 4.8	3.3* 3.3	19.0*		4.8	11.1* 15.0*				5.9*	Yes	8.4	2015			8.52*
Unrestricted unions	N2544	4.6	3.0	19.0*		4.6	14.0*				5.13	Yes	8.4	2015		A.06.28
Type traits	N1836	4.3	3.0	14.0*		4.0	10.0				5.13	Yes	8.4	2015		6.16
Variadic templates	v0.9: N2242 v1.0: N2555	4.3(v0.9) 4.4(v1.0)	2.9(v1.0)	18.0*		4.1(v0.9)	12.1(v1.0)				5.13	Yes	8.4	2015		A.06.27
Range-for loop	N2930	4.6	3.0	17.0*		4.5	13.0				5.13	Yes	8.4	2015		A.06.28
override and final	v0.8: N2928 v0.9: N3206 v1.0: N3272	4.7	2.9	17.0*		4.8(v1.0)	12.0(v0.8) 14.0(v1.0)				5.13	Yes	8.4	2015
Attributes	N2761	4.8	3.3	19.0*		4.2	12.1				5.13	Yes	8.4	2015		A.06.27
ref-qualifiers	N2439	4.8.1	2.9	19.0*		4.7	14.0				5.13	Yes	8.4	2015		A.06.28
Non-static data member initializers	N2756	4.7	3.0	18.0*		4.6	14.0				5.13	Yes	8.4	2015		A.06.28
Dynamic initialization and destruction with concurrency (magic statics)	N2660	4.3	2.9	19.0*		Yes	11.1*				5.13	Yes	8.4	2015		A.06.25
noexcept	N3050	4.6	3.0	19.0*		4.5	14.0				5.13	Yes	8.4	2015		A.06.28
dynamic pointer safety (GC interface)	N2670					N/A
Money, Time, and hexfloat I/O manipulators	Time: N2071 Money: N2072	5.1	3.8	19.0*		N/A					5.15
C++ feature	Paper(s)	Version	GCC	Clang	MSVC	EDG eccp	Intel C++	IBM XLC++	Sun/Oracle C++	Embarcadero C++ Builder	Cray	Portland Group (PGI)	HP aCC	Digital Mars C++

C++ future features

C++ Future feature	Paper(s)	Version	GCC	Clang	MSVC	EDG eccp	Intel C++	IBM XLC++	Sun/Oracle C++	Embarcadero C++ Builder	Cray	Portland Group (PGI)	HP aCC	Digital Mars C++
C++ feature	Paper(s)	Version	GCC	Clang	MSVC	EDG eccp	Intel C++	IBM XLC++	Sun/Oracle C++	Embarcadero C++ Builder	Cray	Portland Group (PGI)	HP aCC	Digital Mars C++

* - 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 2017-09)

• C++11 core language support status (complete as of 4.8.1)
• C++14 core language support status (complete as of 5.1)
• C++17 core language support status (complete as of 7.1)
• C++11 library support status (complete as of 5.0)
• C++14 library support status (complete as of 5.0)
• C++17 library support status
• Technical Specifications support status

• Clang++ (Updated 2017-09)

• 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 2017-08)

• 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 2016-06)

• 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)
• Intel does not ship an implementation of the C++ standard library

• EDG (Updated 2016-01)

• C++11 core language support status
• C++14 core language support status
• C++17 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 2015-12)

• C++11 core language support status (v 13.1 for AIX)
• IBM ships a version of Dinkumware library for AIX with full support for C++ TR1, including <regex>, but no C++11
• C++11 core language support status (v 13.1.1 for Linux)
• IBM does not ship an implementation of C++ standard library for Linux (uses GNU libstdc++)
• C++11/C++14 core language support status (v 13.1.2 for Little Endian Linux / zLinux Big Endian)

• 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++

• C++11 core language support status (C++ Builder 10.1 Berlin for Windows 32/64, iOS and Android clang-enhanced compilers) [1]

• Cray (updated 2015-12)

• [2] For version 8.4, claims all of C++11 is supported except alignas

• Portland Group (PGI) (updated 2016-07)

• 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)"