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authorMarek Polacek <polacek@redhat.com>2019-04-17 18:26:42 +0000
committerMarek Polacek <mpolacek@gcc.gnu.org>2019-04-17 18:26:42 +0000
commitf64e89775fc23fc57b1631f0c0e80a96150e3cd8 (patch)
tree2b0cb0b5fc80e7d3a9b847193b25afe48b3d8679
parent62a64d0af19020933e975c9b942f5b4f0b7d3ca5 (diff)
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PR c++/90124 - bogus error with incomplete type in decltype.
* typeck.c (build_class_member_access_expr): Check cp_unevaluated_operand. * g++.dg/cpp0x/decltype70.C: New test. From-SVN: r270418
-rw-r--r--gcc/cp/ChangeLog6
-rw-r--r--gcc/cp/typeck.c3
-rw-r--r--gcc/testsuite/ChangeLog5
-rw-r--r--gcc/testsuite/g++.dg/cpp0x/decltype70.C10
4 files changed, 23 insertions, 1 deletions
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 67baed6..a37a6c2 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,9 @@
+2019-04-17 Marek Polacek <polacek@redhat.com>
+
+ PR c++/90124 - bogus error with incomplete type in decltype.
+ * typeck.c (build_class_member_access_expr): Check
+ cp_unevaluated_operand.
+
2019-04-12 Jakub Jelinek <jakub@redhat.com>
PR c/89933
diff --git a/gcc/cp/typeck.c b/gcc/cp/typeck.c
index 03b1402..7224d9b 100644
--- a/gcc/cp/typeck.c
+++ b/gcc/cp/typeck.c
@@ -2477,7 +2477,8 @@ build_class_member_access_expr (cp_expr object, tree member,
/* We didn't complain above about a currently open class, but now we
must: we don't know how to refer to a base member before layout is
complete. But still don't complain in a template. */
- if (!dependent_type_p (object_type)
+ if (!cp_unevaluated_operand
+ && !dependent_type_p (object_type)
&& !complete_type_or_maybe_complain (object_type, object,
complain))
return error_mark_node;
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 3fb6092..e9e0077 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2019-04-17 Marek Polacek <polacek@redhat.com>
+
+ PR c++/90124 - bogus error with incomplete type in decltype.
+ * g++.dg/cpp0x/decltype70.C: New test.
+
2019-04-17 Jakub Jelinek <jakub@redhat.com>
PR middle-end/90095
diff --git a/gcc/testsuite/g++.dg/cpp0x/decltype70.C b/gcc/testsuite/g++.dg/cpp0x/decltype70.C
new file mode 100644
index 0000000..b26aca9
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp0x/decltype70.C
@@ -0,0 +1,10 @@
+// PR c++/90124
+// { dg-do compile { target c++11 } }
+
+class a {
+public:
+ int b;
+};
+class c : a {
+ auto m_fn1() -> decltype(b);
+};