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From: Jason Merrill <jason@gcc.gnu.org> To: gcc-cvs@gcc.gnu.org Subject: [gcc r10-11303] c++: &enum::enumerator [PR101869] Date: Fri, 21 Apr 2023 20:27:58 +0000 (GMT) [thread overview] Message-ID: <20230421202758.E889A3858D20@sourceware.org> (raw) https://gcc.gnu.org/g:6f7f90113bc78440a248bef4b917583fde3e6e5f commit r10-11303-g6f7f90113bc78440a248bef4b917583fde3e6e5f Author: Jason Merrill <jason@redhat.com> Date: Thu Mar 16 13:11:32 2023 -0400 c++: &enum::enumerator [PR101869] We don't want to call build_offset_ref with an enum. PR c++/101869 gcc/cp/ChangeLog: * semantics.c (finish_qualified_id_expr): Don't try to build a pointer-to-member if the scope is an enumeration. gcc/testsuite/ChangeLog: * g++.dg/cpp0x/enum43.C: New test. Diff: --- gcc/cp/semantics.c | 3 ++- gcc/testsuite/g++.dg/cpp0x/enum43.C | 11 +++++++++++ 2 files changed, 13 insertions(+), 1 deletion(-) diff --git a/gcc/cp/semantics.c b/gcc/cp/semantics.c index d846a1bd8f0..568f019fede 100644 --- a/gcc/cp/semantics.c +++ b/gcc/cp/semantics.c @@ -2143,7 +2143,8 @@ finish_qualified_id_expr (tree qualifying_class, /* If EXPR occurs as the operand of '&', use special handling that permits a pointer-to-member. */ - if (address_p && done) + if (address_p && done + && TREE_CODE (qualifying_class) != ENUMERAL_TYPE) { if (TREE_CODE (expr) == SCOPE_REF) expr = TREE_OPERAND (expr, 1); diff --git a/gcc/testsuite/g++.dg/cpp0x/enum43.C b/gcc/testsuite/g++.dg/cpp0x/enum43.C new file mode 100644 index 00000000000..b2cd9797a06 --- /dev/null +++ b/gcc/testsuite/g++.dg/cpp0x/enum43.C @@ -0,0 +1,11 @@ +// PR c++/101869 + +enum E { A }; +E operator & (E e) +{ + return e; +} +E f(void) +{ + return &E::A; // { dg-error "not a class" "" { target c++98_only } } +}
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