https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97878
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jakub at gcc dot gnu.org
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
With
extern int a[];
auto [b] = a;
it is just error-recovery bug rather than ice-on-invalid-code:
pr97878-3.C:2:12: error: initializer fails to determine size of ‘<structured
bindings>’
2 | auto [b] = a;
| ^
pr97878-3.C:2:12: internal compiler error: in cxx_eval_outermost_constant_expr,
at cp/constexpr.c:7127
0xaa8260 cxx_eval_outermost_constant_expr
../../gcc/cp/constexpr.c:7127
0xaa9a81 maybe_constant_init_1
../../gcc/cp/constexpr.c:7593
0xaa9b0b maybe_constant_init(tree_node*, tree_node*, bool)
../../gcc/cp/constexpr.c:7610
0xaa98e5 fold_non_dependent_init(tree_node*, int, bool, tree_node*)
../../gcc/cp/constexpr.c:7564
0xe4f994 store_init_value(tree_node*, tree_node*, vec<tree_node*, va_gc,
vl_embed>**, int)
../../gcc/cp/typeck2.c:767
0xb3807b check_initializer
../../gcc/cp/decl.c:7028
0xb3d512 cp_finish_decl(tree_node*, tree_node*, bool, tree_node*, int)
../../gcc/cp/decl.c:7946
0xcbda72 cp_parser_decomposition_declaration
../../gcc/cp/parser.c:14663
The clang++ diagnostics doesn't make any sense either:
error: cannot decompose non-class, non-array type 'int *'
but doesn't crash the compiler.
