diff options
Diffstat (limited to 'gcc/c-decl.c')
| -rw-r--r-- | gcc/c-decl.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/gcc/c-decl.c b/gcc/c-decl.c index 5f69e36..34a8f42 100644 --- a/gcc/c-decl.c +++ b/gcc/c-decl.c @@ -4985,10 +4985,18 @@ get_parm_info (void_at_end) tree new_parms = 0; tree order = current_binding_level->parm_order; - /* Just `void' (and no ellipsis) is special. There are really no parms. */ + /* Just `void' (and no ellipsis) is special. There are really no parms. + But if the `void' is qualified (by `const' or `volatile') or has a + storage class specifier (`register'), then the behavior is undefined; + by not counting it as the special case of `void' we will cause an + error later. Typedefs for `void' are OK (see DR#157). + */ if (void_at_end && parms != 0 && TREE_CHAIN (parms) == 0 && VOID_TYPE_P (TREE_TYPE (parms)) + && ! TREE_THIS_VOLATILE (parms) + && ! TREE_READONLY (parms) + && ! DECL_REGISTER (parms) && DECL_NAME (parms) == 0) { parms = NULL_TREE; |