cpphash.h (struct cpp_buff): Make unsigned.
* cpphash.h (struct cpp_buff): Make unsigned.
(_cpp_get_buff): Take length of size_t.
(_cpp_unaligned_alloc): New.
(BUFF_ROOM, BUFF_FRONT, BUFF_LIMIT): New.
(struct cpp_reader): Remove ident_pool. Add u_buff.
* cppinit.c (cpp_create_reader): Initialize u_buff, not ident_pool.
(cpp_destroy): Destroy u_buff, not ident_pool.
* cpplex.c (parse_number, parse_string, save_comment,
cpp_token_as_text): Update to use the unaligned buffer.
(new_buff): Make unsigned.
(_cpp_unaligned_alloc): New.
* cpplib.c (glue_header_name): Update to use the unaligned buffer.
* cppmacro.c (new_number_token, builtin_macro, stringify_arg):
Similarly.
(collect_args): Make unsigned.
From-SVN: r45858