Hey
On Thu, Mar 26, 2020 at 8:47 PM Allan McRae
On 27/3/20 7:13 am, Anatol Pomozov wrote:
C18 is the latest released version of the language spec. The toolchains support it starting with GCC 8.1.0 and Clang 7.
GCC 8.1.0 - May 2, 2018 Clang 7 - 19 September 2018
So available for 18 months. Seems reasonable given the next release is a few months out minimum.
But why do we need this version? What feature will be used? Is C11 enough?
C18 is mostly a clarification on top of C11 language spec. C18 does not introduce any new language features http://www.iso-9899.info/wiki/The_Standard#C18 C11 is what was a big step for C language. I use C11 feature in my other projects and I really like it. Some of my favorite features are: - type-generic expressions. This is a poor-man generic that can be used in macros. Quite useful in some cases for example instead of having htobe16/htobe32/htobe64/.. this feature allows to have a macro htobe() with functionality that depends on the parameter type. - _Thread_local specifier that allows to introduce a thread-local variables - defines for atomic types + functions for accessing the vars in atomic way