[cfe-dev] empty enum

[Patrick Flannery]

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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