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Merge pull request #2075 from bbbradsmith/struct-duplicate-member-error

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Error for struct/union with a duplicate member
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Bob Andrews 2023-05-04 22:43:17 +02:00 committed by GitHub
commit a7676bdff5
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2 changed files with 19 additions and 0 deletions
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2
src/cc65/symtab.c
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@ -793,6 +793,8 @@ static int HandleSymRedefinition (SymEntry* Sym, const Type* T, unsigned Flags)
*/
Error ("Redeclaration of enumerator constant '%s'", Sym->Name);
Sym = 0;
} else if (Flags & SC_STRUCTFIELD) {
Error ("Duplicate member '%s'", Sym->Name);
}
}
}

17
test/err/struct-duplicate-member.c Normal file
View File

@ -0,0 +1,17 @@
/* Ensure that a duplicate member in a struct produces an error.
** https://github.com/cc65/cc65/issues/2015
*/
struct bads {
int a;
int a; /* this is an error */
};
union badu {
int a, a; /* also an error */
};
int main(void)
{
return 0;
}