diff options
| author | Joseph Myers <jsm28@cam.ac.uk> | 2001-01-31 10:24:40 +0000 |
|---|---|---|
| committer | Joseph Myers <jsm28@gcc.gnu.org> | 2001-01-31 10:24:40 +0000 |
| commit | 0aca1a4fd3d3f5fbfbbbfcc8e29a3f1cbb45d56a (patch) | |
| tree | 34733a2dad346aaafe559de1ce988837b74efabf /gcc/c-parse.in | |
| parent | 92fa350add2e10d97b012085da56166db9ed4f0c (diff) | |
| download | gcc-0aca1a4fd3d3f5fbfbbbfcc8e29a3f1cbb45d56a.zip gcc-0aca1a4fd3d3f5fbfbbbfcc8e29a3f1cbb45d56a.tar.gz gcc-0aca1a4fd3d3f5fbfbbbfcc8e29a3f1cbb45d56a.tar.bz2 | |
c-parse.in (structsp): Pedwarn when "enum foo" refers to an incomplete type.
* c-parse.in (structsp): Pedwarn when "enum foo" refers to an
incomplete type.
(typename): Call pending_xref_error after parsing typed_typespecs.
* c-decl.c (lookup_tag): Give error immediately rather than
leaving it pending if the tag of the wrong type is in the same
binding level.
(xref_tag): Don't pedwarn for forward declarations of enum types
here.
* gcc.texi (Actual Bugs): Remove entry for misuse of struct, union
and enum tags.
testsuite:
* gcc.dg/c99-tag-1.c: New test.
From-SVN: r39372
Diffstat (limited to 'gcc/c-parse.in')
| -rw-r--r-- | gcc/c-parse.in | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/gcc/c-parse.in b/gcc/c-parse.in index 5b32768..a51161c 100644 --- a/gcc/c-parse.in +++ b/gcc/c-parse.in @@ -1397,7 +1397,11 @@ structsp: { $$ = finish_enum ($<ttype>3, nreverse ($4), chainon ($1, $7)); } | enum_head identifier - { $$ = xref_tag (ENUMERAL_TYPE, $2); } + { $$ = xref_tag (ENUMERAL_TYPE, $2); + /* In ISO C, enumerated types can be referred to + only if already defined. */ + if (pedantic && !COMPLETE_TYPE_P ($$)) + pedwarn ("ISO C forbids forward references to `enum' types"); } ; maybecomma: @@ -1534,8 +1538,10 @@ enumerator: ; typename: - typed_typespecs absdcl - { $$ = build_tree_list ($1, $2); } + typed_typespecs + { pending_xref_error (); } + absdcl + { $$ = build_tree_list ($1, $3); } | nonempty_type_quals absdcl { $$ = build_tree_list ($1, $2); } ; |