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Read more about Launchpad's inter-bugtracker facilities at https://help.launchpad.net/InterBugTracking. ------------------------------------------------------------------------ On 2019-04-06T10:09:33+00:00 Matthias Klose wrote: $ cat test.ii template <int, int, bool, class> class a; namespace b { template <typename, unsigned long, long, unsigned long, typename...> class b; template <unsigned long, typename> struct c; template <typename l, unsigned long d, unsigned long dim, typename... curshape> struct c<d, b<l, dim, 0, dim, curshape...>> { using e = typename c<d - 1, b<l, dim, 0, dim, a<0, 1, true, void>>>::e; }; template <typename l, unsigned long dim, typename... curshape> struct c<0, b<l, dim, 0, dim, curshape...>> { using e = b<l, dim, 0, dim, curshape...>; }; template <typename l, unsigned long f, template <int, int, bool, typename> class baseclass, int g, int h, typename i, typename... j> class b<l, f, 0, f, baseclass<g, h, true, i>, j...> { b(long); b(const long (&)[]); }; } // namespace b template <long dim, typename l = double> using blaspp = typename b::c<dim, b::b<l, dim, 0, dim>>::e; blaspp<1> k({4}) $ g++ -c test.ii test.ii:23:16: internal compiler error: Segmentation fault blaspp<1> k({4}) ^ 0x8a0698 crash_signal ../../src/gcc/toplev.c:325 0x5aa51e compare_ics ../../src/gcc/cp/call.c:9684 0xe8cbe1 joust ../../src/gcc/cp/call.c:10124 0xe8a7f6 tourney ../../src/gcc/cp/call.c:10526 0xe8a7f6 build_new_method_call_1 ../../src/gcc/cp/call.c:9295 0xe8a7f6 build_new_method_call(tree_node*, tree_node*, vec<tree_node*, va_gc, vl_embed>**, tree_node*, int, tree_node**, int) ../../src/gcc/cp/call.c:9462 0xe8a7f6 build_special_member_call(tree_node*, tree_node*, vec<tree_node*, va_gc, vl_embed>**, tree_node*, int, int) ../../src/gcc/cp/call.c:8989 0xede19b expand_default_init ../../src/gcc/cp/init.c:1906 0xede19b expand_aggr_init_1 ../../src/gcc/cp/init.c:2021 0xede19b build_aggr_init(tree_node*, tree_node*, int, int) ../../src/gcc/cp/init.c:1761 0xec44b8 build_aggr_init_full_exprs ../../src/gcc/cp/decl.c:6292 0xec44b8 check_initializer ../../src/gcc/cp/decl.c:6441 0xec2cbf cp_finish_decl(tree_node*, tree_node*, bool, tree_node*, int) ../../src/gcc/cp/decl.c:7154 0xf03597 cp_parser_init_declarator ../../src/gcc/cp/parser.c:19819 0xefec29 cp_parser_simple_declaration ../../src/gcc/cp/parser.c:13058 0xefe415 cp_parser_block_declaration ../../src/gcc/cp/parser.c:12877 0xefd737 cp_parser_declaration ../../src/gcc/cp/parser.c:12775 0xefd54a cp_parser_declaration_seq_opt ../../src/gcc/cp/parser.c:12651 0x14ba85b cp_parser_translation_unit ../../src/gcc/cp/parser.c:4563 0x14ba85b c_parse_file() ../../src/gcc/cp/parser.c:39118 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. $ g++-7 -c test.ii test.ii:18:21: error: parameter '<anonymous>' includes reference to array of unknown bound 'const long int []' b(const long (&)[]); ^ test.ii:23: confused by earlier errors, bailing out $ g++-9 -c test.ii test.ii:23:16: error: call of overloaded 'b(<brace-enclosed initializer list>)' is ambiguous 23 | blaspp<1> k({4}) | ^ test.ii:18:3: note: candidate: 'b::b<l, f, 0, f, baseclass<g, h, true, i>, j ...>::b(const long int (&)[]) [with l = double; long unsigned int f = 1; baseclass = a; int g = 0; int h = 1; i = void; j = {}]' 18 | b(const long (&)[]); | ^ test.ii:17:3: note: candidate: 'b::b<l, f, 0, f, baseclass<g, h, true, i>, j ...>::b(long int) [with l = double; long unsigned int f = 1; baseclass = a; int g = 0; int h = 1; i = void; j = {}]' 17 | b(long); | ^ test.ii:16:7: note: candidate: 'constexpr b::b<double, 1, 0, 1, a<0, 1, true, void> >::b(const b::b<double, 1, 0, 1, a<0, 1, true, void> >&)' 16 | class b<l, f, 0, f, baseclass<g, h, true, i>, j...> { | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ test.ii:16:7: note: candidate: 'constexpr b::b<double, 1, 0, 1, a<0, 1, true, void> >::b(b::b<double, 1, 0, 1, a<0, 1, true, void> >&&)' test.ii:23:16: error: expected ',' or ';' at end of input 23 | blaspp<1> k({4}) | ^ Reply at: https://bugs.launchpad.net/ubuntu/+source/gcc-7/+bug/1823296/comments/5 ------------------------------------------------------------------------ On 2019-04-06T10:10:24+00:00 Matthias Klose wrote: works on the gcc-7 branch and the trunk, ICEs on the gcc-8-branch. Reply at: https://bugs.launchpad.net/ubuntu/+source/gcc-7/+bug/1823296/comments/6 ** Changed in: gcc Status: Unknown => New ** Changed in: gcc Importance: Unknown => Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1823296 Title: g++ 7.3 and g++ 8.2 report segmentation fault To manage notifications about this bug go to: https://bugs.launchpad.net/gcc/+bug/1823296/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
