How to prevent unused functions from operating?

[jani12]

Our Advanced Drive Assist Systems(ADAS) project is based on Two identical Renesas RH850 / U2A16 Microcontrollers. Our programming language is embedded 'C'.

How to create settings so that unused functions do no operate? Please provide an example.

 

[Wade Hassler]

Have your compiler delete unused code. Don't know the syntax, but I guarantee you; it's in there.

 

[rjenkinsgb]

Use #IFDEF / #ENDIF around the function and each reference to it, with a DEFINE you can comment out to disable it

// Uncommenting this allows the code in matching ifdefs to be visible to the compiler
//#DEFINE FUNCT001


// Each reference to the function and its definition
#IFDEF FUNCT001
//function code or call
..
..
#ENDIF

C Language: #ifdef Directive

This C tutorial explains how to use the #ifdef preprocessor directive in the C language. In the C Programming Language, the #ifdef directive allows for conditional compilation.

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