diff options
Diffstat (limited to 'gcc/c-decl.c')
| -rw-r--r-- | gcc/c-decl.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/gcc/c-decl.c b/gcc/c-decl.c index 4ec34eace4d..d167ddfd4c9 100644 --- a/gcc/c-decl.c +++ b/gcc/c-decl.c @@ -5392,6 +5392,18 @@ grokfield (filename, line, declarator, declspecs, width) { tree value; + if (declarator == NULL_TREE && width == NULL_TREE) + { + /* This is an unnamed decl. We only support unnamed + structs/unions, so check for other things and refuse them. */ + if (TREE_CODE (TREE_VALUE (declspecs)) != RECORD_TYPE + && TREE_CODE (TREE_VALUE (declspecs)) != UNION_TYPE) + { + error ("unnamed fields of type other than struct or union are not allowed"); + return NULL_TREE; + } + } + value = grokdeclarator (declarator, declspecs, width ? BITFIELD : FIELD, 0); finish_decl (value, NULL_TREE, NULL_TREE); |