876 C11  section in Checks for Standard Language Features
879 The features listed below are part of the C11 standard.  As a result, all these
884 C11 alignment specifiers  argument
893 C11 atomic operations  argument
900 ``__has_include(<stdatomic.h>)`` to determine if C11's ``<stdatomic.h>`` header
905 operations are provided as macros. In the cases where C11 also requires a real
910 C11 generic selections  argument
917 As an extension, the C11 generic selection expression is available in all
918 languages supported by Clang.  The syntax is the same as that given in the C11
925 C11 ``_Static_assert()``  argument
932 C11 ``_Thread_local``  argument
1785 C11's ``<stdatomic.h>`` header.  These builtins provide the semantics of the
1786 ``_explicit`` form of the corresponding C11 operation, and are named with a
1788 the corresponding C11 operations, are:
1808 provided, with values corresponding to the enumerators of C11's