gcc/
* c-decl.c (lookup_name): Use the new
maybe_record_typedef_use.
(pushdecl): Use the new
record_locally_defined_typedef.
(store_parm_decls): Allocate cfun->language.
(finish_function): Use the new maybe_warn_unused_local_typedefs,
and free cfun->language.
(c_push_function_context): Allocate cfun->language here only if
needed.
(c_pop_function_context): Likewise, mark cfun->language
for collection only when it should be done.
* c-common.c (handle_used_attribute): Don't ignore TYPE_DECL
nodes.
* c-typeck.c (c_expr_sizeof_type, c_cast_expr): Use the new
maybe_record_local_typedef_use.
gcc/c-family
* c-common.h (struct c_language_function::local_typedefs): New
field.
(record_locally_defined_typedef, maybe_record_typedef_use)
(maybe_warn_unused_local_typedefs): Declare new functions.
* c-common.c (record_locally_defined_typedef)
(maybe_record_typedef_use)
(maybe_warn_unused_local_typedefs): Define new functions.
* c.opt: Declare new -Wunused-local-typedefs flag.
gcc/cp
* name-lookup.c (pushdecl_maybe_friend_1): Use the new
record_locally_defined_typedef.
* decl.c (finish_function): Use the new
maybe_warn_unused_local_typedefs.
(grokfield): Use the new record_locally_defined_typedef.
* parser.c (lookup_name): Use the new maybe_record_typedef_use.
gcc/doc/
* invoke.texi: Update documentation for -Wunused-local-typedefs.
gcc/testsuite/
* g++.dg/warn/Wunused-local-typedefs.C: New test file.
* c-c++-common/Wunused-local-typedefs.c: Likewise.
libstdc++-v3/
* include/ext/bitmap_allocator.h
(__detail::__mini_vector::__lower_bound): Remove unused typedef.
* src/istream.cc (std::operator>>(basic_istream<char>& __in,
basic_string<char>& __str)): Likewise.
(std::getline): Likewise.
* src/valarray.cc (__valarray_product): Likewise.
From-SVN: r178692
