CC78K4 Datasheet, PDF (149/523 Pages) NEC – CC78K4 Ver.2.30 or Later, C Compiler Language

CHAPTER 9 PREPROCESSING DIRECTIVES (COMPILER DIRECTIVES)
(4) Re-scanning and further replacement
The preprocessing token string resulting from replacement of macro parameters in the list will be scanned again,
together with all remaining preprocessing tokens in the source file. Macro names currently being replaced (not
including the remaining preprocessing tokens in the source file) will not be replaced even if they are found during
scanning of the replacement list.
(5) Scope of macro definition
A macro definition (#define directive) continues macro replacement until it encounters the corresponding #undef
directive.
User’s Manual U15556EJ1V0UM
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