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C++ compiler support

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C++
 
C++ language
General topics
Flow control
Conditional execution statements
if
Iteration statements (loops)
for
range-for (C++11)
Jump statements
Functions
Function declaration
Lambda function expression
inline specifier
Dynamic exception specifications (until C++17*)
noexcept specifier (C++11)
Exceptions
Namespaces
Types
Specifiers
const/volatile
decltype (C++11)
auto (C++11)
constexpr (C++11)
consteval (C++20)
constinit (C++20)
Storage duration specifiers
Initialization
Expressions
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
Memory allocation
Classes
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explicit (C++11)
static

Special member functions
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Contents


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

C++20 core language features

C++20 feature

  		Paper(s)

 
GCC
Clang
MSVC
Apple Clang
EDG eccp
Intel C++
IBM XL C++
IBM Open XL C++ for AIX
IBM Open XL C++ for z/OS
Sun/Oracle C++
Embarcadero C++ Builder
Cray
Nvidia HPC C++ (ex PGI)*
Nvidia nvcc
Allow Lambda capture [=, this] P0409R2 8 6 19.22*

10.0.0*

5.1 2021.1 11.0 20.7 12.0
__VA_OPT__ P0306R4
P1042R1 		8 (partial)*
10 (partial)*
12 		9 19.25*

11.0.3*

5.1 2021.1 11.0 20.7 12.0
Designated initializers P0329R4 4.7 (partial)*
8 		3.0 (partial)*
10 		19.21*

12.0.0*

5.1 2021.1 11.0 20.7 12.0
template-parameter-list for generic lambdas P0428R2 8 9 19.22*

11.0.0*

5.1 2021.1 11.0 20.7 12.0
Default member initializers for bit-fields P0683R1 8 6 19.25*

10.0.0*

5.1 2021.1 11.0 20.7 12.0
Initializer list constructors in class template argument deduction P0702R1 8 6 19.14* Yes 5.0 2021.1 11.0 20.7 12.0
const&-qualified pointers to members P0704R1 8 6 19.0 (2015)*

10.0.0*

5.1 2021.1 11.0 20.7 12.0
Concepts P0734R0 6
(TS only)
10 		10 19.23* (partial)*
19.30*

12.0.0* (partial)

6.1 2023.1* 11.0 20.11 12.0
Lambdas in unevaluated contexts P0315R4 9 13 (partial)*
14 (partial)*
17 		19.28 (16.8)*

13.1.6* (partial)

6.2 2023.1 (partial)
2024.0 		12.0
Three-way comparison operator P0515R3 10 8 (partial)
10 		19.20*

12.0.0*

5.1 2021.1 11.0 20.7 12.0
DR11: Simplifying implicit lambda capture P0588R1 8 19.24* 5.1 2021.1 20.7 12.0
init-statements for range-based for P0614R1 9 8 19.25*

11.0.0*

6.0 2021.7 11.0 20.11 12.0
Default constructible and assignable stateless lambdas P0624R2 9 8 19.22*

10.0.1*

5.1 2021.1 11.0 20.7 12.0
Type mismatch of defaulted special member functions P0641R2 9 (partial)* 8 19.0 (2015)* (partial)*

10.0.1*

5.1 2021.1 11.0 20.7 12.0
Access checking on specializations P0692R1 Yes 8 (partial)
14 		19.26*

14.0.0*

5.1 2021.1 20.7 12.0
ADL and function templates that are not visible P0846R0 9 9 19.21*

11.0.3*

5.1 2021.1 11.0 20.7 12.0
DR11: Specify when constexpr function definitions are needed for constant evaluation P0859R0 5.2 (partial)*
9 		8 19.27* (partial)*
19.31**

11.0.0*

11.0 12.0
Attributes [[likely]] and [[unlikely]] P0479R5 9 12 19.26*

13.0.0*

5.1 2021.7 20.7 12.0
Make typename more optional P0634R3 9 16 19.29 (16.10)* 5.1 2023.1 20.7 12.0
Pack-expansions in lambda init-captures P0780R2 9 9 19.22*

11.0.3*

6.1 2021.7 11.0 20.11 12.0
Attribute [[no_unique_address]] P0840R2 9 9 19.28 (16.9)**

11.0.3*

5.1 2021.1 11.0 20.7 12.0
Conditionally Trivial Special Member Functions P0848R3 10 16 19.28 (16.8)* 6.1 2021.7 20.11 12.0
DR17: Relaxing the structured bindings customization point finding rules P0961R1 8 8 19.21*

10.0.1*

5.1 2021.1 11.0 20.7 12.0
DR11: Relaxing the range-for loop customization point finding rules P0962R1 8 8 19.25*

11.0.0*

5.1 2021.1 11.0 20.7 12.0
DR17: Allow structured bindings to accessible members P0969R0 8 8 19.21*

10.0.1*

5.1 2021.1 11.0 20.7 12.0
Destroying operator delete P0722R3 9 6 19.27*

10.0.0*

6.1 2023.1 11.0 20.11 12.0
Class types in Non-type template parameters P0732R2 9 12 (partial) 19.26*(partial)*
19.28 (16.9)*

13.0.0* (partial)

6.2 2023.1 (partial) 12.0
Deprecate implicit capture of this via [=] P0806R2 9 7 19.22*

10.0.1*

5.1 11.0 20.7 12.0
explicit(bool) P0892R2 9 9 19.24*

11.0.3*

5.1 2021.1 11.0 20.7 12.0
Integrating feature-test macros P0941R2 5 3.4 19.15* (partial)
19.20* 		Yes 5.0 2021.1 11.0 20.7 12.0
Prohibit aggregates with user-declared constructors P1008R1 9 8 19.20*

10.0.1*

5.1 2021.1 11.0 20.7 12.0
constexpr virtual function P1064R0 9 9 19.28 (16.9)*

11.0.3*

5.1 2021.1 11.0 20.7 12.0
Consistency improvements for comparisons P1120R0 10 8 (partial)
10 		19.22*

12.0.0*

5.1 2023.1 11.0 20.7 12.0
char8_t P0482R6 9 7* 19.22*

10.0.0*

5.1 2021.1 11.0 20.7 12.0
std::is_constant_evaluated() P0595R2 9 9 19.25*

11.0.3*

5.1 19.1 11.0 12.0
constexpr try-catch blocks P1002R1 9 8 19.25*

10.0.1*

5.1 2023.1 11.0 20.7 12.0
Immediate functions (consteval) P1073R3 10 (partial)*
11 		11 (partial)
14 (partial)*
17 		19.28 (16.8)*
(partial)*
19.29 (16.10)*

11.0.3* (partial)
15.0.0*

5.1 2021.1 20.7 12.0
Nested inline namespaces P1094R2 9 8 19.27*

10.0.1*

5.1 2021.1 11.0 20.7 12.0
Yet another approach for constrained declarations P1141R2 10 10 19.26* (partial)
19.28 (16.9)*

12.0.5*

6.1 2023.1 11.0 20.11 12.0
Signed integers are two's complement P1236R1 9 9 Yes

11.0.3*

N/A 2023.1* 11.0 yes* 12.0
dynamic_cast and polymorphic typeid in constant expressions P1327R1 10 9 19.29 (16.10)*

11.0.3*

5.1 2021.1 11.0 20.7 12.0
Changing the active member of a union inside constexpr P1330R0 9 9 19.10*

11.0.3*

5.1 2021.1 11.0 20.7 12.0
Coroutines P0912R5 10 8 (partial)
17 (partial)* 		19.0 (2015)* (partial)
19.10* (TS only)
19.28 (16.8)*

10.0.1* (partial)

5.1 2021.1 12.0 (host code only)
Parenthesized initialization of aggregates P0960R3 10 16 19.28 (16.8)* 5.1 2021.1 20.7 12.0
DR11: Array size deduction in new-expressions P1009R2 11 9 19.27*

11.0.3*

5.1 2021.1 11.0 20.7 12.0
Modules P1103R3 11 (partial) 8 (partial) 19.0 (2015)* (partial)
19.10* (TS only)
19.28 (16.8)*

10.0.1* (partial)

2023.1 (partial)
Stronger Unicode requirements P1041R4
P1139R2 		10 Yes 19.0 (2015)* (P1041R4)
19.26* (P1139R2) 		Yes N/A 2023.1* 11.0 12.0
<=> != == P1185R2 10 10 19.22*

12.0.0*

5.1 2021.1 11.0 20.7 12.0
DR11: Explicitly defaulted functions with different exception specifications P1286R2 10 9 19.28 (16.8)*

11.0.3*

5.1 2021.1 11.0 20.7 12.0
Lambda capture and storage class specifiers of structured bindings P1091R3
P1381R1 		10 8 (partial)
16 		19.11*(P1381R1)
19.24*(P1091R3)

10.0.1* (partial)

5.1 2021.1 20.7 12.0
Permit conversions to arrays of unknown bound P0388R4 10 14 19.27*

14.0.0*

6.0 2021.5 20.11 12.0
constexpr container operations P0784R7 10 10 19.28 (16.9)*

12.0.0*

6.0 2021.5 11.0 20.11 12.0
Deprecating some uses of volatile P1152R4 10 10 19.27*

12.0.0*

6.0 2021.5 11.0 20.11 12.0
constinit P1143R2 10 10 19.29 (16.10)*

12.0.0*

6.1 2021.7 11.0 20.11 12.0
Deprecate comma operator in subscripts P1161R3 10 9 19.25*

11.0.3*

6.0 2021.7 11.0 20.11 12.0
[[nodiscard]] with message P1301R4 10 9 19.25*

11.0.3*

6.0 2021.5 11.0 20.11 12.0
Trivial default initialization in constexpr functions P1331R2 10 10 19.27*

12.0.0*

6.1 2021.7 11.0 20.11 12.0
Unevaluated asm-declaration in constexpr functions P1668R1 10 10 19.28 (16.9)*

12.0.0*

6.1 2021.7 11.0 20.11 12.0
using enum P1099R5 11 13 19.24*

13.1.6*

6.3 2023.1 12.0
Synthesizing Three-way comparison for specified comparison category P1186R3 11 10 19.24*

12.0.0*

6.0 2021.5 11.0 20.11 12.0
DR17: [[nodiscard]] for constructors P1771R1 10 9 19.24*

11.0.3*

6.0 2021.5 11.0 20.11 12.0
class template argument deduction for alias templates P1814R0 10 19 19.27* 6.5 12.0
class template argument deduction for aggregates P1816R0
P2082R1 		10(P1816R0)
11(P2082R1) 		17 19.27* 6.3 2023.1 (partial)*
2024.1 		12.0
DR11: Implicit move for more local objects and rvalue references P1825R0 11* 13 19.24*

13.1.6*

6.0 2021.5 20.11 12.0
Allow defaulting comparisons by value P1946R0 10 10 19.25*

12.0.0*

6.1 2021.7 11.0 20.11 12.0
Remove std::weak_equality and std::strong_equality P1959R0 10 10 19.25*

12.0.0*

6.1 2021.7 11.0 20.11 12.0
Inconsistencies with non-type template parameters P1907R1 10 (partial)
11 		18 (partial)* 19.26*

13.1.6* (partial)

6.2 2023.1 (partial) 12.0
DR98: Pseudo-destructors end object lifetimes P0593R6 11 11 Yes

12.0.5*

N/A 2023.1* 11.0 12.0
DR11: Converting from T* to bool should be considered narrowing P1957R2 10*
11* 		11 19.27*

12.0.5*

6.1 11.0 12.0
 

C++20 feature 		 

Paper(s)
GCC
Clang
MSVC
Apple Clang
EDG eccp
Intel C++
IBM XL C++
IBM Open XL C++ for AIX
IBM Open XL C++ for z/OS
Sun/Oracle C++
Embarcadero C++ Builder
Cray
Nvidia HPC C++ (ex PGI)*
Nvidia nvcc

C++20 library features

C++20 feature

  		Paper(s)

 
GCC libstdc++
Clang libc++
MSVC STL
Apple Clang*
IBM Open XL C/C++ for AIX*
Sun/Oracle C++*
Embarcadero C++ Builder*
std::endian P0463R1 8 7 19.22*

10.0.0*

Extending std::make_shared() to support arrays P0674R1 12 15 19.27*

14.0.3*

Floating-point atomic P0020R6 10 18 19.22*
Synchronized buffered (std::basic_osyncstream) P0053R7 11 18 19.29 (16.10)*
constexpr for <algorithm> and <utility> P0202R3 10 8 (partial)
12 		19.26*

10.0.1* (partial)
13.0.0*

More constexpr for <complex> P0415R1 9 7 (partial)
16 		19.27*

10.0.0* (partial)
15.0.0*

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 (partial)*
17 		19.20* (partial)
19.28 (16.9)*

13.0.0*

std::remove_cvref P0550R2 9 6 19.20*

10.0.0*

[[nodiscard]] in the standard library P0600R1 9 7 (partial)
16 		19.13* (partial)
19.22*

10.0.0* (partial)
15.0.0*

Using std::move in numeric algorithms P0616R0 9 12 19.23*

13.0.0*

Utility to convert a pointer to a raw pointer P0653R2 8 6 19.22* Yes
Atomic std::shared_ptr and std::weak_ptr P0718R2 12 19.27*
std::span P0122R7 10 7 19.26*

10.0.0*

Calendar and timezone P0355R7 11 (partial)*
13 (partial)*
14 		7 (partial)
19 (partial)* 		19.29 (16.10)*

10.0.0* (partial)

<version> P0754R2 9 7 19.22*

10.0.0*

Comparing unordered containers P0809R0 Yes Yes 16.0* Yes
ConstexprIterator requirements P0858R0 9 12 19.11*

13.0.0*

std::basic_string::reserve() should not shrink P0966R1 11 8 19.25*

10.0.1*

Atomic Compare-And-Exchange with padding bits P0528R3 13 19.28 (16.8)*
std::atomic_ref P0019R8 10 19 19.28 (16.8)*
contains() member function of associative containers, e.g. std::map::contains() P0458R2 9 13 19.21*

13.1.6*

DR11: Guaranteed copy elision for piecewise construction P0475R1 9 Yes 19.29 (16.10)* Yes
std::bit_cast() P0476R2 11 14 19.27*

14.0.3*

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)*

11.0.3* (P0556R3)
13.0.0* (P1956R1)

Improving the return value of erase-like algorithms P0646R1 9 10 19.21*

12.0.0*

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*

13.0.0*

Constexpr for std::swap() and swap related functions P0879R0 10 13 19.26*

13.1.6*

std::type_identity P0887R1 9 8 19.21*

10.0.1*

Concepts library P0898R3 10 13 19.23*

13.1.6*

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*

13.1.6*

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)
16 		19.22*

10.0.1* (partial)
15.0.0*

Utility functions to implement uses-allocator construction P0591R4 9 16 19.29 (16.10)*

15.0.0*

DR17: std::variant and std::optional should propagate copy/move triviality P0602R4 8.3 8 19.11*

10.0.1*

DR17: A sane std::variant converting constructor P0608R3 10 9 19.29 (16.10)**
19.42**

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)
15* 		19.29 (16.10)*

14.0.3*

Heterogeneous lookup for unordered containers P0919R3 P1690R1 11 12 19.23* (P0919R3)
19.25* (P1690R1)

13.0.0*

<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 		15 19.28 (16.9)*

14.0.3*

Smart pointer creation with default initialization (e.g. make_unique_for_overwrite) P1020R1
P1973R1 		11 (unique_ptr)
12 (shared_ptr) 		16 19.28 (16.9)*

15.0.0*

Misc constexpr bits P1032R1 10 13 19.28 (16.8)*

13.1.6*

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 15 19.26*

14.0.3*

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)
12.0.5* (P1115R3)

Standard library header units P1502R1 11 19.29 (16.10)*
polymorphic_allocator<> as a vocabulary type P0339R6 9 16 19.28 (16.9)*

15.0.0*

std::execution::unseq P1001R2 9 17 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*

DR17: Make create_directory() intuitive P1164R1 8.3 12 19.20*

13.0.0*

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*

12.0.0*

Efficient access to std::basic_stringbuf’s buffer P0408R7 11 17 19.29 (16.10)*

15.0.0*

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*

12.0.5*

Text formatting P0645R10 13 14*
17 		19.29 (16.10)*

15.0.0*

std::stop_token and std::jthread P0660R10 10 17
(partial)*
20* 		19.28 (16.9)*
constexpr std::allocator and related utilities P0784R7 10 12 19.29 (16.10)*

13.0.0*

constexpr std::string P0980R1 12 15 19.29 (16.10)*
19.30**

14.0.3*

constexpr std::vector P1004R2 12 15 19.29 (16.10)*
19.30**

14.0.3*

Input range adaptors P1035R7 10 16 19.29 (16.10)*

15.0.0*

constexpr std::invoke() and related utilities P1065R2 10 12 19.28 (16.8)*

13.0.0*

Atomic waiting and notifying, std::counting_semaphore, std::latch and std::barrier P1135R6 11 11 19.28 (16.8)*

13.1.6*

std::source_location P1208R6 11 15*
(partial)
16 		19.29 (16.10)*

15.0.0*

Adding <=> to the standard library P1614R2 10 14*
(partial)
17*
(partial)
19 		19.29 (16.10)*

13.1.6* (partial)

constexpr default constructor of std::atomic and std::atomic_flag P0883R2 10 13 19.26*

13.1.6*

constexpr for numeric algorithms P1645R1 10 12 19.26*

13.0.0*

Safe integral comparisons P0586R2 10 13 19.27*

13.1.6*

 

C++20 feature 		 

Paper(s)
GCC libstdc++
Clang libc++
MSVC STL
Apple Clang*
IBM Open XL C/C++ for AIX*
Sun/Oracle C++*
Embarcadero C++ Builder*

C++17 features

C++17 core language features

C++17 feature

  		Paper(s)

 
GCC
Clang
MSVC
Apple Clang
EDG eccp
Intel C++
IBM XL C++
IBM Open XL C++ for AIX
IBM Open XL C++ for z/OS
Sun/Oracle C++
Embarcadero C++ Builder
Cray
Nvidia HPC C++ (ex PGI)*
Nvidia nvcc
DR11: New auto rules for direct-list-initialization N3922 5 3.8 19.0 (2015)* Yes 4.10.1 17.0 17.1.0 1.1.0 10.3 11.0 17.7 11.0
static_assert with no message N3928 6 2.5 19.10* Yes 4.12 18.0 17.1.0 1.1.0 10.3 11.0 17.7 11.0
typename in a template template parameter N4051 5 3.5 19.0 (2015)* Yes 4.10.1 17.0 17.1.0 1.1.0 10.3 11.0 17.7 Yes*
Removing trigraphs N4086 5 3.5 16.0* Yes 5.0 17.1.0 1.1.0 10.3 11.0 19.1 11.0
Nested namespace definition N4230 6 3.6 19.0 (Update 3)* Yes 4.12 17.0 17.1.0 1.1.0 10.3 11.0 17.7 11.0
Attributes for namespaces and enumerators N4266 4.9 (partial)*
6 		3.6 19.0 (2015)* Yes 4.11 17.0 17.1.0 1.1.0 10.3 11.0 17.7 11.0
u8 character literals N4267 6 3.6 19.0 (2015)* Yes 4.11 17.0 17.1.0 1.1.0 10.3 11.0 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 17.1.0 1.1.0 10.3 11.0 19.1 11.0
Fold Expressions N4295 6 3.6 19.12* Yes 4.14 19.0 17.1.0 1.1.0 10.3 11.0 18.1 11.0
Unary fold expressions and empty parameter packs P0036R0 6 3.9 19.12* Yes 4.14 19.0 17.1.0 1.1.0 10.3 11.0 19.1 11.0
Remove Deprecated Use of the register Keyword P0001R1 7 3.8 19.11* Yes 4.13 18.0 17.1.0 1.1.0 10.3 11.0 17.7 11.0
Remove Deprecated operator++(bool) P0002R1 7 3.8 19.11* Yes 4.13 18.0 17.1.0 1.1.0 10.3 11.0 17.7 11.0
Make exception specifications part of the type system P0012R1 7 4 19.12* Yes 4.14 19.0 17.1.0 1.1.0 10.3 11.0 19.1 11.0
Aggregate classes with base classes P0017R1 7 3.9 19.14* Yes 5.0 19.0.1 17.1.0 1.1.0 10.3 11.0 19.1 11.0
__has_include in preprocessor conditionals P0061R1 5 Yes 19.11* Yes 4.13 18.0 17.1.0 1.1.0 10.3 11.0 17.7 11.0
DR11: New specification for inheriting constructors (DR1941 et al) P0136R1 7 3.9 19.14 (partial)* Yes 6.1 17.1.0 1.1.0 10.3 11.0 19.1 11.0
Lambda capture of *this P0018R3 7 3.9 19.11* Yes 4.14 19.0 17.1.0 1.1.0 10.3 11.0 18.1 11.0
Direct-list-initialization of enumerations P0138R2 7 3.9 19.11* Yes 4.14 18.0 17.1.0 1.1.0 10.3 11.0 19.1 11.0
constexpr lambda expressions P0170R1 7 5 19.11* Yes 4.14 19.0 17.1.0 1.1.0 10.3 11.0 18.1 11.0
Differing begin and end types in range-based for P0184R0 6 3.9 19.10* Yes 4.12 18.0 17.1.0 1.1.0 10.3 11.0 17.7 11.0
[[fallthrough]] attribute P0188R1 7 3.9 19.10* Yes 4.13 18.0 17.1.0 1.1.0 10.3 11.0 17.7 11.0
[[nodiscard]] attribute P0189R1 7 3.9 19.11* Yes 4.13 18.0 17.1.0 1.1.0 10.3 11.0 17.7 11.0
[[maybe_unused]] attribute P0212R1 7 3.9 19.11* Yes 4.13 18.0 17.1.0 1.1.0 10.3 11.0 17.7 11.0
Hexadecimal floating-point literals P0245R1 3.0 Yes 19.11* Yes 4.13 18.0 17.1.0 1.1.0 10.3 11.0 17.7 11.0
Using attribute namespaces without repetition P0028R4 7 3.9 19.11* Yes 4.13 18.0 17.1.0 1.1.0 10.3 11.0 17.7 11.0
Dynamic memory allocation for over-aligned data P0035R4 7 4 19.12*

10.0.0*

4.14 19.0 17.1.0 1.1.0 10.3 11.0 19.1 11.0
Class template argument deduction P0091R3 7 5 19.14* Yes 5.0 19.0.1 17.1.0 1.1.0 10.3 11.0 19.1 11.0
Non-type template parameters with auto type P0127R2 7 4 19.14* Yes 5.0 19.0.1 17.1.0 1.1.0 10.3 11.0 19.1 11.0
Guaranteed copy elision P0135R1 7 4 19.13* Yes 5.0 19.0.1 17.1.0 1.1.0 10.3 11.0 19.1 11.0
Replacement of class objects containing reference members P0137R1 7 6 19.14* Yes 5.0 17.1.0 1.1.0 10.3 11.0 19.1 11.0
Stricter expression evaluation order P0145R3 7 4 19.14* Yes 5.0 19.0.1 17.1.0 1.1.0 10.3 11.0 19.1 11.0
Structured Bindings P0217R3 7 4 19.11* Yes 4.14 19.0 17.1.0 1.1.0 10.3 11.0 18.1 11.0*
Ignore unknown attributes P0283R2 Yes 3.9 19.11* Yes 4.13 18.0 17.1.0 1.1.0 10.3 11.0 17.7 11.0
constexpr if statements P0292R2 7 3.9 19.11* Yes 4.14 19.0 17.1.0 1.1.0 10.3 11.0 18.1 11.0
init-statements for if and switch P0305R1 7 3.9 19.11* Yes 4.14 18.0 17.1.0 1.1.0 10.3 11.0 18.1 11.0
Inline variables P0386R2 7 3.9 19.12* Yes 4.14 19.0 17.1.0 1.1.0 10.3 11.0 18.1 11.0
Removing dynamic exception specifications P0003R5 7 4 19.10* Yes 4.14 19.0 17.1.0 1.1.0 10.3 11.0 19.1 11.0
Pack expansions in using-declarations P0195R2 7 4 19.14* Yes 5.0 19.0 17.1.0 1.1.0 10.3 11.0 19.1 11.0
DR98: Matching of template template-arguments excludes compatible templates P0522R0 7 4 19.12* Yes 5.0 19.0.1 17.1.0 1.1.0 10.3 11.0 19.1 11.0
 

C++17 feature 		 

Paper(s)
GCC
Clang
MSVC
Apple Clang
EDG eccp
Intel C++
IBM XL C++
IBM Open XL C++ for AIX
IBM Open XL C++ for z/OS
Sun/Oracle C++
Embarcadero C++ Builder
Cray
Nvidia HPC C++ (ex PGI)*
Nvidia nvcc

C++17 library features

C++17 feature

  		Paper(s)

 
GCC libstdc++
Clang libc++
MSVC STL
Apple Clang*
IBM Open XL C/C++ for AIX*
Intel Parallel STL
Sun/Oracle C++*
Embarcadero C++ Builder*
std::void_t N3911 6 3.6 19.0 (2015)* Yes 17.1.0 N/A 10.3
std::uncaught_exceptions() N4259 6 3.7 19.0 (2015)* Yes 17.1.0 N/A 10.3
std::size(), std::empty() and std::data() N4280 6 3.6 19.0 (2015)* Yes 17.1.0 N/A 10.3
Improving std::pair and std::tuple N4387 6 4 19.0 (Update 2)* Yes 17.1.0 N/A 10.3
std::bool_constant N4389 6 3.7 19.0 (2015)* Yes 17.1.0 N/A 10.3
std::shared_mutex (untimed) N4508 6 3.7 19.0 (Update 2)* Yes 17.1.0 N/A 10.3
Type traits variable templates P0006R0 7 3.8 19.0 (Update 2)* Yes 17.1.0 N/A 10.3
Logical operator type traits P0013R1 6 3.8 19.0 (Update 2)* Yes 17.1.0 N/A 10.3
Parallel algorithms and execution policies P0024R2 9* 17
(partial)* 		19.14* 18.0*
std::clamp() P0025R1 7 3.9 19.0 (Update 3)*

10.0.0*

17.1.0 N/A 10.3
Hardware interference size P0154R1 12 15 (partial)*
19 		19.11* N/A 10.3
(nothrow-)swappable traits P0185R1 7 3.9 19.0 (Update 3)*

10.0.0*

17.1.0 N/A 10.3
File system library (std::filesystem) P0218R1 8 7 19.14*

11.0.0*

17.1.1 N/A 10.3
std::string_view N3921
P0220R1 		7 4 19.10*

10.0.0*

17.1.0 N/A 10.3
std::any P0220R1 7 4 19.10*

10.0.0*

17.1.0 N/A 10.3
std::optional P0220R1 7 4 19.10*

10.0.0*

17.1.0 N/A 10.3
Polymorphic memory resources P0220R1 9 16 19.13*

15.0.0*

N/A 10.3
Mathematical special functions P0226R1 7 19.14* N/A 10.3
Major portion of C11 standard library P0063R3 9 7 19.0 (2015)*
(partial)*

10.0.0*

17.1.1 N/A
Splicing Maps and Sets P0083R3 7 8 19.12*

10.0.0*

17.1.1 N/A
return type of emplace* functions of some containers changed from void to reference P0084R2 7.1 4.0 19.11* Yes 17.1.0 N/A
std::variant P0088R3 7 4 19.10*

10.0.0*

17.1.0 N/A 10.3
std::make_from_tuple() P0209R2 7 3.9 19.10* Yes 17.1.0 N/A 10.3
std::has_unique_object_representations P0258R2 7 6 19.11* Yes 17.1.1 N/A 10.3
std::gcd() and std::lcm() P0295R0 7 4 19.11* Yes 17.1.0 N/A 10.3
std::not_fn P0005R4
P0358R1 		7 3.9 19.12* Yes 17.1.0 N/A 10.3
Elementary string conversions: std::to_chars/std::from_chars P0067R5 8*
11 		7*
14*
20* 		19.14**
19.24*

10.0.0**

17.1.1* N/A 10.3*
std::shared_ptr and std::weak_ptr with array support P0414R2 7 11 19.12*

12.0.0*

17.1.1 N/A 10.3
std::scoped_lock P0156R2 7 5 19.11* Yes 17.1.1 N/A 10.3
std::byte P0298R3 7 5 19.11* Yes 17.1.1 N/A 10.3
std::is_aggregate LWG2911 7 5 19.15* Yes 17.1.1 N/A 10.3
DR17: std::hash<std::filesystem::path> LWG3657 11.4 17 19.32* N/A
 

C++17 feature 		 

Paper(s)
GCC libstdc++
Clang libc++
MSVC STL
Apple Clang*
IBM Open XL C/C++ for AIX*
Intel Parallel STL
Sun/Oracle C++*
Embarcadero C++ Builder*
Notes
  • As of 2020-11-20, the latest release of Oracle Developer Studio is 12.6. Its documentation does not mention C++17.
  • Cray compiler may have support for some features earlier than 11.0. That version is when it became a derivative of Clang, gaining all of the attendant language feature support of the base compiler. See Cray/HPE document S-2179.

C++14 features

C++14 core language features

C++14 feature

  		Paper(s)

 
GCC
Clang
MSVC
Apple Clang
EDG eccp
Intel C++
IBM XL C++
IBM Open XL C++ for AIX
IBM Open XL C++ for z/OS
Sun/Oracle C++
Embarcadero C++ Builder
Cray
Nvidia HPC C++ (ex PGI)*
Nvidia nvcc
Tweaked wording for contextual conversions N3323 4.9 3.4 18.0* Yes 4.9 16.0 13.1.2* 17.1.0 1.1.0 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* 17.1.0 1.1.0 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* 17.1.0 1.1.0 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* 17.1.0 1.1.0 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* 17.1.0 1.1.0 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* 17.1.0 1.1.0 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* 17.1.0 1.1.0 5.15 10.3 8.6 17.4 9.0
Aggregates with default member initializers N3653 5 3.3 19.10* Yes 4.9 16.0 16.1.1* 17.1.0 1.1.0 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 17.1.0 1.1.0 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* 17.1.0 1.1.0 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* 17.1.0 1.1.0 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* 17.1.0 1.1.0 5.14 10.3 8.6 2015 9.0
 

C++14 feature 		 

Paper(s)
GCC
Clang
MSVC
Apple Clang
EDG eccp
Intel C++
IBM XL C++
IBM Open XL C++ for AIX
IBM Open XL C++ for z/OS
Sun/Oracle C++
Embarcadero C++ Builder
Cray
Nvidia HPC C++ (ex PGI)*
Nvidia nvcc

C++14 library features

C++14 feature

  		Paper(s)

 
GCC libstdc++
Clang libc++
MSVC STL
Apple Clang*
IBM Open XL C/C++ for AIX*
Sun/Oracle C++*
Embarcadero C++ Builder*
constexpr for <complex> N3302 5 3.4 19.0 (2015)* Yes 17.1.0 5.15 10.3
Transparent operator functors N3421 4.9 3.4 18.0* Yes 17.1.0 5.15 10.3
std::result_of and SFINAE N3462 5 Yes 19.0 (Update 2)* Yes 17.1.0 5.15 10.3
constexpr for <chrono> N3469 5 3.4 19.0 (2015)* Yes 17.1.0 5.15 10.3
constexpr for <array> N3470 5 3.4 19.0 (2015)* Yes 17.1.0 5.15 10.3
constexpr for <initializer_list>, <utility> and <tuple> N3471 5 3.4 19.0 (2015)* Yes 17.1.0 5.15 10.3
Improved std::integral_constant N3545 5 3.4 19.0 (2015)* Yes 17.1.0 5.15 10.3
User-defined literals for <chrono> and <string> N3642 5 3.4 19.0 (2015)* Yes 17.1.0 5.15 10.3
Null forward iterators N3644 5 (partial)
10 		3.4 19.0 (2015)* Yes 17.1.0 5.15 10.3
std::quoted N3654 5 3.4 19.0 (2015)* Yes 17.1.0 5.15 10.3
std::make_unique N3656 4.9 3.4 18.0* Yes 17.1.0 5.15 10.3
Heterogeneous associative lookup N3657 5 3.4 19.0 (2015)* Yes 17.1.0 5.15 10.3
std::integer_sequence N3658 5 3.4 19.0 (2015)* Yes 17.1.0 5.15 10.3
std::shared_timed_mutex N3659 5 3.4 19.0 (2015)* Yes 17.1.0 5.15 10.3
std::exchange N3668 5 3.4 19.0 (2015)* Yes 17.1.0 5.15 10.3
fixing constexpr member functions without const N3669 5 3.4 19.0 (2015)* Yes 17.1.0 5.15 10.3
std::get<T>() N3670 5 3.4 19.0 (2015)* Yes 17.1.0 5.15 10.3
Dual-Range std::equal, std::is_permutation, std::mismatch N3671 5 3.4 19.0 (2015)* Yes 17.1.0 5.15 10.3
 

C++14 feature 		 

Paper(s)
GCC libstdc++
Clang libc++
MSVC STL
Apple Clang*
IBM Open XL C/C++ for AIX*
Sun/Oracle C++*
Embarcadero C++ Builder*

C++11 features

C++11 core language features

C++11 feature

  		Paper(s)

 
GCC
Clang
MSVC
Apple Clang
EDG eccp
Intel C++
IBM XL C++
IBM Open XL C++ for AIX
IBM Open XL C++ for z/OS
Sun/Oracle C++
Embarcadero C++ Builder
Cray
Nvidia HPC C++ (ex 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 17.1.0 1.1.0 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 17.1.0 1.1.0 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 17.1.0 1.1.0 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 17.1.0 1.1.0 5.13 Yes 8.4 2015 7.0 A.06.25
long long N1811 Yes Yes 14.0* Yes Yes Yes Yes 17.1.0 1.1.0 Yes Yes 8.4 2015 7.0 Yes Yes
auto N1984 4.4 Yes 16.0* Yes 3.9 11.0 (v0.9)
12.0 		11.1 17.1.0 1.1.0 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 17.1.0 1.1.0 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 17.1.0 1.1.0 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 		17.1.0 1.1.0 5.13 Yes 8.4 2015 7.0 A.06.28
char16_t and char32_t N2249 4.4 2.9 19.0 (2015)* Yes 4.4 12.1*
14.0 		13.1.1* 17.1.0 1.1.0 5.13 Yes 8.4 2015 7.0 A.06.27 8.52
Compiler support for type traits N2255
N2518*
N2984
N3142 		4.3*
4.8*
5 		3.0 14.0*
(partial)*
19.0 (2015)* 		Yes 4.0 10.0 13.1.3 17.1.0 1.1.0 5.13 Yes 8.4 2015 6.16
Template aliases N2258 4.7 3.0 18.0* Yes 4.2 12.1 13.1.1* 17.1.0 1.1.0 5.13 Yes 8.4 2015 7.0 A.06.27
alignas N2341 4.8 3.0 19.0 (2015)* Yes 4.8 15.0 13.1.2* 17.1.0 1.1.0 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* 17.1.0 1.1.0 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 17.1.0 1.1.0 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 17.1.0 1.1.0 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* 17.1.0 1.1.0 5.14 Yes 8.4 2015
nullptr N2431 4.6 2.9 16.0* Yes 4.2 12.1 13.1 17.1.0 1.1.0 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 17.1.0 1.1.0 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* 17.1.0 1.1.0 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* 		17.1.0 1.1.0 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* 17.1.0 1.1.0 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 17.1.0 1.1.0 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* 17.1.0 1.1.0 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 17.1.0 1.1.0 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* 17.1.0 1.1.0 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) 17.1.0 1.1.0 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 17.1.0 1.1.0 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* 17.1.0 1.1.0 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)* 		17.1.0 1.1.0 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* 17.1.0 1.1.0 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* 17.1.0 1.1.0 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* 17.1.0 1.1.0 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* 17.1.0 1.1.0 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 17.1.0 1.1.0 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* 17.1.0 1.1.0 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 17.1.0 1.1.0 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* 17.1.0 1.1.0 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* 17.1.0 1.1.0 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* 17.1.0 1.1.0 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 17.1.0 1.1.0 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* 17.1.0 1.1.0 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) 17.1.0 1.1.0 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 XL C++
IBM Open XL C++ for AIX
IBM Open XL C++ for z/OS
Sun/Oracle C++
Embarcadero C++ Builder
Cray
Nvidia HPC C++ (ex PGI)*
Nvidia nvcc
HP aCC
Digital Mars C++

C++11 library features

C++11 feature

  		Paper(s)

 
GCC libstdc++
Clang libc++
MSVC STL
Apple Clang*
IBM Open XL C/C++ for AIX*
Sun/Oracle C++*
Embarcadero C++ Builder*
Regular expressions library N1429 4.9 2.8 ? Yes 17.1.0
Type traits N1836*
N2240
N2244
N2255
N2342
N2984
N3142 		4.3*
4.8*
5 		3.0 14.0*
(partial)*
19.0 (2015)* 		Yes 17.1.0 5.13 Yes
Member functions cbegin, cend, crbegin, and crend of containers N1913
LWG1192 		4.3*
4.5 		Yes* 16.0* Yes* 17.1.0
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)* 		17.1.0
Money, Time, and hexfloat I/O manipulators N2071
N2072 		5 3.8 19.0 (2015)* Yes 17.1.0 5.15
Disallowing COW (copy-on-write) std::basic_string N2668 5 Yes Yes Yes 17.1.0 Yes
 

C++11 feature 		 

Paper(s)
GCC libstdc++
Clang libc++
MSVC STL
Apple Clang*
IBM Open XL C/C++ for AIX*
Sun/Oracle C++*
Embarcadero C++ Builder*

* - 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.


References

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

  • GCC (Updated 2020-01)
  • Clang++ (Updated 2020-01)
  • Apple Clang (Updated 2019-06)
  • Microsoft Visual Studio (updated 2019-08)
  • Intel C++ (Updated 2018-11)
  • Parallel STL (an implementation of the C++17 standard library algorithms with support for execution policies)
  • EDG (Updated 2019-10)
  • Oracle C++ (updated 2017-07)
  • 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
  • HP aCC
  • Digital Mars C++
  • 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)
  • Portland Group (PGI) (updated 2019-01)
  • Nvidia Cuda nvcc (updated 2020-02)
  • Texas Instruments (updated 2018-05)
  • Analog Devices (updated 2018-05)
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