Compiler/CCSTUDIO-C2000: -Wundef option to generate a warning if a preprocessor argument is not defined

MiaooaiM

Intellectual 585 points

Part Number: CCSTUDIO-C2000

Tool/software: TI C/C++ Compiler

Hi,

is there a switch in the C2000 compiler to generate a warning if the preprocessor find a undefined argument?

Example

#if (ARG_A == ARG_B)

if ARG_A and ARG_B are not defined the proprocessor translate

#if (0 == 0) -> true

The use of #if defined() is a way but I have to add it to all the source modules and is a long work.

I take a look into advance language option but I didn't find a solution.

Thank you

Regards

Giuseppe

over 5 years ago

0 George Mock over 5 years ago

TI__Guru**** 249420 points

Use the compiler option --issue_remarks. That causes the compiler to issue diagnostics similar to ...

C:\work>cl2000 --issue_remarks file.c
"file.c", line 1: remark: zero used for undefined preprocessing identifier "ARG_A"
"file.c", line 1: remark: zero used for undefined preprocessing identifier "ARG_B"

To learn more about this option, please search for it in the C2000 compiler manual.

Thanks and regards,

-George

0 MiaooaiM over 5 years ago in reply to George Mock

Intellectual 585 points

Hi,

I've also discovered the MISRA-C_2004 rules:

Option 19.11 does the check that all preprocessor macro identifiers have to be defined before used.

Thank you

Regards

Giuseppe

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Compiler/CCSTUDIO-C2000: -Wundef option to generate a warning if a preprocessor argument is not defined