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Re: PATCH RFA: -Wc++-compat warning about duplicate decls


Robert Dewar <dewar@adacore.com> writes:

> Ian Lance Taylor wrote:
>> In C, it's OK to write
>>   int i;
>>   int i;
>> In C++, it is not.  This patch adds a -Wc++-compat warning for this
>> case.  This patch requires approval from the C frontend maintainers.
>
> shouldn't this in any case generate a warning in C, how can
> it be useful to do this, regardless of C++ compatibility.

It's not particularly useful, but since traditional C compilers accept
it, I don't think it rises to the level of a -Wall warning.

Ian


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