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| author | Per Bothner <bothner@kalessin.cygnus.com> | 1995-08-25 19:06:45 -0400 |
|---|---|---|
| committer | Richard Kenner <kenner@gcc.gnu.org> | 1995-08-25 19:06:45 -0400 |
| commit | f3be9e3c336718ee354a5a76eff94315ee2eac9a (patch) | |
| tree | 4b7c86e341883619548aa0d07456ebe6416b4b4b | |
| parent | d2ad151f7fb2ebf6685826b250e55e5038482a1c (diff) | |
| download | gcc-f3be9e3c336718ee354a5a76eff94315ee2eac9a.zip gcc-f3be9e3c336718ee354a5a76eff94315ee2eac9a.tar.gz gcc-f3be9e3c336718ee354a5a76eff94315ee2eac9a.tar.bz2 | |
(do_identifier): Handle old (non-ANSI) for scoping, and warn if
conflicts.
From-SVN: r10275
| -rw-r--r-- | gcc/cp/lex.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/gcc/cp/lex.c b/gcc/cp/lex.c index 2e0997e..a99e9af 100644 --- a/gcc/cp/lex.c +++ b/gcc/cp/lex.c @@ -2916,6 +2916,41 @@ do_identifier (token) SET_IDENTIFIER_ERROR_LOCUS (token, current_function_decl); } } + + if (TREE_CODE (id) == VAR_DECL && DECL_DEAD_FOR_LOCAL (id)) + { + tree shadowed = DECL_SHADOWED_FOR_VAR (id); + if (shadowed) + { + if (!DECL_ERROR_REPORTED (id)) + { + warning ("name lookup of `%s' changed", + IDENTIFIER_POINTER (token)); + cp_warning_at (" matches this `%D' under current ANSI rules", + shadowed); + cp_warning_at (" matches this `%D' under old rules", id); + DECL_ERROR_REPORTED (id) = 1; + } + id = shadowed; + } + else if (!DECL_ERROR_REPORTED (id)) + { + static char msg[] + = "name lookup of `%s' changed for new ANSI `for' scoping"; + DECL_ERROR_REPORTED (id) = 1; + if (TYPE_NEEDS_DESTRUCTOR (TREE_TYPE (id))) + { + error (msg, IDENTIFIER_POINTER (token)); + cp_error_at (" cannot use obsolete binding at `%D' because it has a destructor", id); + id = error_mark_node; + } + else + { + pedwarn (msg, IDENTIFIER_POINTER (token)); + cp_pedwarn_at (" using obsolete binding at `%D'", id); + } + } + } /* TREE_USED is set in `hack_identifier'. */ if (TREE_CODE (id) == CONST_DECL) { |