C17 (C standard revision)
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C17, formally ISO/IEC 9899:2018,[1] is an open standard for the C programming language, prepared in 2017 and published in June 2018. It replaced C11 (standard ISO/IEC 9899:2011),[2] and is superseded by C23 (ISO/IEC 9899:2024) since October 2024.[3] Since it was under development in 2017, and officially published in 2018, C17 is sometimes referred to as C18.[4]
Changes from C11
[edit]C17 fixes numerous minor defects in C11 without introducing new language features.[2]
The __STDC_VERSION__
macro is increased to the value 201710L
.
For a detailed list of changes from the previous standard, see Clarification Request Summary for C11.[5]
Compiler support
[edit]List of compilers supporting C17:
- GCC 8.1.0[6]
- LLVM Clang 7.0.0[7]
- IAR EWARM v8.40.1[8]
- Microsoft Visual C++ VS 2019 (16.8)[9]
- Pelles C 9.00[10]
See also
[edit]- C++23, C++20, C++17, C++14, C++11, C++03, C++98, versions of the C++ programming language standard
- Compatibility of C and C++
References
[edit]- ^ "ISO/IEC 9899:2018 - Information technology -- Programming languages -- C". International Organization for Standardization.
- ^ a b "The Standard - C". www.iso-9899.info.
- ^ "WG 14 Document log". www.open-std.org.
- ^ "Using the GNU Compiler Collection (GCC): C Dialect Options". gcc.gnu.org.
- ^ ISO/IEC JTC1/SC22/WG14 (October 2017). "Clarification Request Summary for C11 Version 1.13". www.open-std.org. Retrieved 28 September 2020.
{{cite web}}
: CS1 maint: numeric names: authors list (link) - ^ "Using the GNU Compiler Collection (GCC): C Dialect Options". gcc.gnu.org.
- ^ "Clang 7 documentation — Clang Compiler User's Manual".
- ^ "IAR Information Center for Arm - Release notes". netstorage.iar.com.
- ^ "C11 and C17 Standard Support Arriving in MSVC". devblogs.microsoft.com. 14 September 2020.
- ^ "Changelog - Added support for new C17 standard". www.smorgasbordet.com/pellesc/.
Further reading
[edit]- N2176 (final draft of C17 standard); WG14; 2017.
- ISO/IEC 9899:2018 (official C17 standard); ISO; 2018.
External links
[edit]