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| author | Kaveh R. Ghazi <ghazi@caip.rutgers.edu> | 2000-07-12 20:15:20 +0000 |
|---|---|---|
| committer | Kaveh Ghazi <ghazi@gcc.gnu.org> | 2000-07-12 20:15:20 +0000 |
| commit | 895ea61453c945cced3974a35173dd58c7753758 (patch) | |
| tree | e7fca6dc3d8c848108c755daa00e7fe40a2c41e3 /gcc/c-decl.c | |
| parent | 8364301f5a1725e900f4554f5d9358146c804ee3 (diff) | |
| download | gcc-895ea61453c945cced3974a35173dd58c7753758.zip gcc-895ea61453c945cced3974a35173dd58c7753758.tar.gz gcc-895ea61453c945cced3974a35173dd58c7753758.tar.bz2 | |
c-decl.c (define_label): Warn about identifier conflicts with labels in traditional C.
* c-decl.c (define_label): Warn about identifier conflicts with
labels in traditional C.
* c-parse.in (unop +): Warn about the unary plus operator for
traditional C.
* c-typeck.c (store_init_value): Warn about automatic aggregate
initialization for traditional C.
* invoke.texi (-Wtraditional): Document new warnings.
From-SVN: r34997
Diffstat (limited to 'gcc/c-decl.c')
| -rw-r--r-- | gcc/c-decl.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/c-decl.c b/gcc/c-decl.c index 619c20c..f212e18 100644 --- a/gcc/c-decl.c +++ b/gcc/c-decl.c @@ -2706,6 +2706,10 @@ define_label (filename, line, name) decl = lookup_label (name); } + if (warn_traditional && lookup_name (name)) + warning ("traditional C lacks a separate namespace for labels, identifier `%s' conflicts", + IDENTIFIER_POINTER (name)); + if (DECL_INITIAL (decl) != 0) { error ("duplicate label `%s'", IDENTIFIER_POINTER (name)); |