2.8.4.8 Macro

Define a macro:

MACRO_DEFINITION:

#macro MACRO_IDENTIFIER ( [PARAM_IDENTIFIER [, PARAM_IDENTIFIER]...] ) TOKENS #end

A parameter identifier may not be repeated in the list.

Invoke a macro:

MACRO_INVOCATION:

MACRO_IDENTIFIER ( [ACTUAL_PARAM [, ACTUAL_PARAM]...] )

ACTUAL_PARAM:

IDENTIFIER | RVALUE

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