[cfe-dev] empty enum

[Eli Friedman]

clang should produce a warning with -pedantic... clang doesn't attempt
to conform to the C99 rules for diagnostics without the -pedantic
option.

Is there any particular reason clang should reject this construct?

-Eli

On Sat, Apr 26, 2008 at 6:02 PM, Patrick Flannery
<foster_flannery at yahoo.com> wrote:
>
> Is it correct that clang does not produce an error for an empty enum?
> cat test.c
> enum Empty{};
> clang test.c  -> no warnings or errors
>
> gcc test.c
> /Users/patrickflannery/test.c:1: error: parse error before '}' token
>
> The code in ParseEnumBody would only omit a warning with pedantic.
>
> // C does not allow an empty enumerator-list, C++ does [dcl.enum].
> if (Tok.is(tok::r_brace) && !getLang().CPlusPlus)
>     Diag(Tok, diag::ext_empty_struct_union_enum, "enum");
>
> Patrick
>
>
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