This discussion has been locked.

You can no longer post new replies to this discussion. If you have a question you can start a new discussion

GCC GNU compiler: -fno-short-enums generates multiple warnings

I use gcc-gnu arm compiler 2019 q4 release. I've added -fno-short-enums compiler flag. It resulted in multiple warnings: "uses 32-bit enums yet the output is to use variable-size enums". Does anyone know the reason of this warning and how to handle it?

Top replies

Andy Neil over 4 years ago +1 verified

DanielT said: fno-short-enums GCC documentation: https://gcc.gnu.org/onlinedocs/gcc/Code-Gen-Options.html So you're telling it not to generate short enums; ie, all enums will be a full int = 32 bits...

Parents

0 DanielT over 4 years ago in reply to Andy Neil

Hi,

Thanks for your reply. I have searched for that in the web.

The most common answer is just to ignore this warning using linker flag.

However, I would like to understand the reason before I ignore this warning.

Regards,

Daniel
Cancel
Up 0 Down

Cancel

Reply

0 DanielT over 4 years ago in reply to Andy Neil

Hi,

Thanks for your reply. I have searched for that in the web.

The most common answer is just to ignore this warning using linker flag.

However, I would like to understand the reason before I ignore this warning.

Regards,

Daniel
Cancel
Up 0 Down

Cancel

Children

No data