* Warn implicit enum conversions
@ 2004-11-22 15:21 "Richter, Jörg"
2004-11-22 15:39 ` Giovanni Bajo
2004-11-22 18:52 ` Giovanni Bajo
0 siblings, 2 replies; 3+ messages in thread
From: "Richter, Jörg" @ 2004-11-22 15:21 UTC (permalink / raw)
To: gcc
Hi,
I'm looking for a type attribute for enums which enables warnings when variables of this enum type are implicitly converted to an integral type like int.
I read the online manual and found nothing I could try.
I can't imagine, that this demand is so uncommon. Perhaps someone knows of a patch that does something like this? Or alternatively you can point me to some functions in gcc where I can start to try to implement it myself?
Ah yes, I need it for C++.
Any help would be greatly appreciated.
Joerg
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Warn implicit enum conversions
2004-11-22 15:21 Warn implicit enum conversions "Richter, Jörg"
@ 2004-11-22 15:39 ` Giovanni Bajo
2004-11-22 18:52 ` Giovanni Bajo
1 sibling, 0 replies; 3+ messages in thread
From: Giovanni Bajo @ 2004-11-22 15:39 UTC (permalink / raw)
To: Richter, Jörg; +Cc: gcc
Richter, Jörg <Joerg.Richter@pdv-FS.de> wrote:
> I can't imagine, that this demand is so uncommon. Perhaps someone
> knows of a patch that does something like this? Or alternatively you
> can point me to some functions in gcc where I can start to try to
> implement it myself?
> Ah yes, I need it for C++.
Look into cp/cvt.c, ocp_convert(). It already handles errors for enum to enum
conversion and integer to enum conversion, so you can add your warning there.
Googling a bit should give you at list one link to a patch adding a new warning
message (get something recent!), so that you see all the places you need to
updated.
Remember to work on mainline, not a release branch.
Giovanni Bajo
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Warn implicit enum conversions
2004-11-22 15:21 Warn implicit enum conversions "Richter, Jörg"
2004-11-22 15:39 ` Giovanni Bajo
@ 2004-11-22 18:52 ` Giovanni Bajo
1 sibling, 0 replies; 3+ messages in thread
From: Giovanni Bajo @ 2004-11-22 18:52 UTC (permalink / raw)
To: Richter, Jörg; +Cc: gcc
Richter, Jörg <Joerg.Richter@pdv-FS.de> wrote:
> I can't imagine, that this demand is so uncommon. Perhaps someone
> knows of a patch that does something like this? Or alternatively you
> can point me to some functions in gcc where I can start to try to
> implement it myself?
> Ah yes, I need it for C++.
Look into cp/cvt.c, ocp_convert(). It already handles errors for enum to enum
conversion and integer to enum conversion, so you can add your warning there.
Googling a bit should give you at list one link to a patch adding a new warning
message (get something recent!), so that you see all the places you need to
updated.
Remember to work on mainline, not a release branch.
Giovanni Bajo
^ permalink raw reply [flat|nested] 3+ messages in thread
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