B.7 Keywords (§3.1.1)

The __inline , __unaligned , and __restrict keywords are supported on OpenVMS Alpha systems and Digital UNIX systems.

All VAX C keywords are supported in VAX C mode. They are:

• _align

• globaldef

• globalref

• globalvalue

• noshare

• readonly

• variant_struct

• variant_union

The following keywords are accepted on Digital UNIX systems, but result in a warning:

• _align

• noshare

• readonly

On Digital UNIX systems, globaldef and initialized globalvalue declarations are treated as external definitions. globalref and uninitialized globalvalue declarations are treated as if they were declared extern .

Note

The MAIN_PROGRAM option is also available with the VAX C compatibility option on OpenVMS systems.