CC78K4 Datasheet, PDF (150/523 Pages) NEC – CC78K4 Ver.2.30 or Later, C Compiler Language

CHAPTER 9 PREPROCESSING DIRECTIVES (COMPILER DIRECTIVES)
(6) #define directive
Macro Replacement Directives
#define
FUNCTION
The #define directive in its simplest form replaces the specified identifier (manifest) with a given replacement list
(any character sequence that does not contain a line feed) whenever the same identifier appears in the source
code after the definition by this directive.
SYNTAX
#define identifier replacement list line feed
EXAMPLE
#define PAI 3.1415
EXPLANATION
In the above example, the identifier “PAI” will be replaced with “3.1415” whenever it appears in the source code
after the definition by this directive.
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User’s Manual U15556EJ1V0UM