https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114600
--- Comment #15 from m.cencora at gmail dot com ---
Thanks!
Unfortunately it seems that your changes broke reexporting of types declared in
other module. It works fine on gcc-14.
$ cat base.cpp
module;
#include <cstdint>
export module base;
export
{
using ::int8_t;
}
export namespace std
{
using std::int8_t;
}
$ cat std.cpp
module;
export module std;
import base;
export namespace std
{
using std::int8_t;
}
$ g++ -fmodules-ts base.cpp std.cpp
std.cpp:9:16: error: ‘typedef __int8_t@base int8_t@base’ conflicts with a
previous declaration
9 | using std::int8_t;
| ^~~~~~
‘
‘lang_*’ check: failed in dump_decl, at cp/error.cc:1424
0x78cebc lang_check_failed(char const*, int, char const*)
../../gcc/cp/tree.cc:6306
0x9ce4e6 dump_decl
../../gcc/cp/error.cc:1424
0x9d993e decl_to_string
../../gcc/cp/error.cc:3324
0x9d993e cp_printer
../../gcc/cp/error.cc:4497
0x26eb792 pretty_printer::format(text_info*, urlifier const*)
../../gcc/pretty-print.cc:1775
0x26c240d pp_format(pretty_printer*, text_info*, urlifier const*)
../../gcc/pretty-print.h:575
0x26c240d diagnostic_context::report_diagnostic(diagnostic_info*)
../../gcc/diagnostic.cc:1612
0x26c2726 diagnostic_impl
../../gcc/diagnostic.cc:1775
0x26c6d0d inform(unsigned int, char const*, ...)
../../gcc/diagnostic.cc:1866
0xa7a29b do_nonmember_using_decl
../../gcc/cp/name-lookup.cc:5311
0xa90727 finish_nonmember_using_decl(tree_node*, tree_node*)
../../gcc/cp/name-lookup.cc:6695
0xa96b04 finish_using_decl
../../gcc/cp/parser.cc:22388
0xaf4693 cp_parser_using_declaration
../../gcc/cp/parser.cc:22552
0xafb370 cp_parser_declaration
../../gcc/cp/parser.cc:15715
0xafab57 cp_parser_declaration_seq_opt
../../gcc/cp/parser.cc:15449
0xafadfc cp_parser_namespace_body
../../gcc/cp/parser.cc:22297
0xafadfc cp_parser_namespace_definition
../../gcc/cp/parser.cc:22275
0xafb110 cp_parser_declaration
../../gcc/cp/parser.cc:15699
0xafb309 cp_parser_module_export
../../gcc/cp/parser.cc:15355
0xafb309 cp_parser_declaration
../../gcc/cp/parser.cc:15655
