Reference to "DNUM" when compiled with strict-ansi

Gunjan

I have some code that I'm trying to build for the c674 elf target and it references the DNUM register. This code builds fine, but when I turn on the 'strict ansi' flag for the compiler

(-ps), compilation fails at the DNUM reference:-

line 439: error: identifier "DNUM" is undefined

DNUM has been defined in the same file as follows:-

extern cregister volatile unsigned int DNUM;

Could someone comment on whether I should be able to do this ? And why it fails ?

Thanks,

Gunjan

over 13 years ago

0 George Mock over 13 years ago

TI__Guru**** 244790 points

The keyword cregister is a language extension. The strict ansi flag is supposed to generate errors any time you use any language extension. If you really want to use cregister and -ps together, then prepend two underscores to the language extension keyword:

extern __cregister volatile unsigned int DNUM;

Thanks and regards,

-George

0 Gunjan over 13 years ago in reply to George Mock

TI__Expert 7415 points

I was about to update this post saying the issue was 'cregister' and not DNUM. But thanks George, prepending two underscores to cregister, worked.

Thanks

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Reference to "DNUM" when compiled with strict-ansi