Searching for Clang C99 Support information? Find all needed info by using official links provided below.
https://clang.llvm.org/compatibility.html
C compatibility C99 inline functions. By default, Clang builds C code in GNU C11 mode, so it uses standard C99 semantics for the inline keyword. These semantics are different from those in GNU C89 mode, which is the default mode in versions of GCC prior …
http://clang.llvm.org/cxx_status.html
(7): In Clang 3.7 and later, sized deallocation is only enabled if the user passes the -fsized-deallocation flag. The user must supply definitions of the sized deallocation functions, either by providing them explicitly or by using a C++ standard library that does.
https://stackoverflow.com/questions/22285043/forcing-compiler-to-c99-standard
clang in general attempts to support most of the extensions that gcc does. Both will even allow you to use features that are C only in C++ for example VLAs which are a C99 feature . In this case both are allowing you to use Unnamed struct/union fields within structs/unions in C99 mode even though it is a C11 feature.
https://forums.ni.com/t5/LabWindows-CVI/clang-C99-support-issue/td-p/1611896
Dear experts, I have run into an issue I can't solve myself: the code in debug mode is OK, the code in release mode (32 bit) works OK if compiled with CVI, but it yields wrong results if compiled with clang... (C99 support is enabled) The relevant code fragment is shown below. My question: Is there an obvious problem with the code, or is there a known issue with clang? Thanks! size_t elements ...
https://en.wikipedia.org/wiki/C99
C99 (previously known as C9X) is an informal name for ISO/IEC 9899:1999, a past version of the C programming language standard. It extends the previous version with new features for the language and the standard library, and helps implementations make better use of available computer hardware, such as IEEE 754-1985 floating-point arithmetic, and compiler technology.
https://en.wikipedia.org/wiki/C11_%28C_standard_revision%29
C11 (formerly C1X) is an informal name for ISO/IEC 9899:2011, a past standard for the C programming language.It replaced C99 (standard ISO/IEC 9899:1999) and has been superseded by C18 (standard ISO/IEC 9899:2018). C11 mainly standardizes features already supported by common contemporary compilers, and includes a detailed memory model to better support multiple threads of execution.
https://www.reddit.com/r/cpp/comments/6mqd2e/why_is_msvc_usually_behind_the_other_compilers_in/
Why is MSVC usually behind the other compilers in new feature support? ... but is there any chance for C99 in the foreseeable future? ... Sadly, the clang/c2 toolset support for vs is terminated, since they consider msvc will soon be as standard complete as others.
https://github.com/zephyrproject-rtos/zephyr/pull/8520
Add an LLVM backend and a clang toolchain variant to support building with llvm coming with popular Linux distributions. This has been tested with X86 boards: quark_d2000_crb quark_se_c1000_devboard/Arduino 101 Use: export ZEPHYR_TOOLCHAIN_VARIANT=clang
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