C++17

In that time period, the C++17 revision was also called C++1z, following C++0x or C++1x for C++11 and C++1y for C++14. UTF-8 character literals (UTF-8 string literals have existed since C++11; C++17 adds the corresponding character literals for consistency, though as they are restricted to a single byte they can only store ASCII)

It was approved by International Organization for Standardization (ISO) on 12 August 2011, replacing C++03, superseded by C++14 on 18 August 2014 and later, by C++17.

, C++17 is the name for the most recent revision of the ISO/IEC 14882 standard for the C++ programming language.

C++ is standardized by the International Organization for Standardization (ISO), with the latest standard version ratified and published by ISO in December 2017 as ISO/IEC 14882:2017 (informally known as C++17).

*C++20

C++20 is the informal name for the revision of the ISO/IEC standard for the C++ programming language expected to follow C++17.

Removal of trigraphs

Trigraphs were then proposed again for removal (not only deprecation) in C++17.

, for representing optional objects, a data type that may not always be returned by a given algorithm with support for non-return

In C++17 it is defined as the template class.

, as a replacement of in exception handling

In the C++ language standard (C++11), this use of exception specifications as specified in the C++03 version of the standard was deprecated and was removed from the language in C++17.

C++ compilers

C11 (C standard revision)

C++20, C++17, C++14, C++11, C++03, C++98, versions of the C++ programming language standard

C18 (C standard revision)

C++98, C++03, C++11, C++14, C++17, C++20 – versions of the C++ programming language standard

In that time period, the C++17 revision was also called C++1z, following C++0x or C++1x for C++11 and C++1y for C++14.

Few changes were made to the C++ Standard Template Library, although some algorithms in the header were given support for explicit parallelization and some syntactic enhancements were made.

Few changes were made to the C++ Standard Template Library, although some algorithms in the header were given support for explicit parallelization and some syntactic enhancements were made.

Few changes were made to the C++ Standard Template Library, although some algorithms in the header were given support for explicit parallelization and some syntactic enhancements were made.

Few changes were made to the C++ Standard Template Library, although some algorithms in the header were given support for explicit parallelization and some syntactic enhancements were made.

Removal of some deprecated types and functions from the standard library, including,, and old function adaptors

Allowing attributes for namespaces and enumerators

Allowing attributes for namespaces and enumerators

UTF-8 character literals (UTF-8 string literals have existed since C++11; C++17 adds the corresponding character literals for consistency, though as they are restricted to a single byte they can only store ASCII)

UTF-8 character literals (UTF-8 string literals have existed since C++11; C++17 adds the corresponding character literals for consistency, though as they are restricted to a single byte they can only store ASCII)

Hexadecimal floating-point literals

copy-initialization and direct-initialization of objects of type from prvalue expressions of type (ignoring top-level cv-qualifiers) shall result in no copy or move constructors from the prvalue expression. See copy elision for more information.

copy-initialization and direct-initialization of objects of type from prvalue expressions of type (ignoring top-level cv-qualifiers) shall result in no copy or move constructors from the prvalue expression. See copy elision for more information.

Inline variables, which allows the definition of variables in header files without violating the one definition rule. The rules are effectively the same as inline functions

Inline variables, which allows the definition of variables in header files without violating the one definition rule. The rules are effectively the same as inline functions

, a read-only non-owning reference to a character sequence or string-slice