Support for the Metal C compiler option

Support is provided for callers who wish to use the Metal C compiler option. The same APIs available to the standard C and C++ callers are also available to Metal C users, with the following restrictions:

• All parameters must be variables.
• The functions do not return values.
  Note: Return codes and reason codes are still returned through the parameter lists.

For more information on how to use the Metal C compiler option, see Metal C Run-time Library Guide and Reference.