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From abab8b02e8102ab546f97b60acc3644d1f3bba2a Mon Sep 17 00:00:00 2001
From: jason <jason@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Fri, 20 May 2011 19:02:17 +0000
Subject: [PATCH] PR c++/48745
* pt.c (value_dependent_expr_p): Handle CONSTRUCTOR.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_6-branch@173972 138bc75d-0d04-0410-961f-82ee72b054a4
index d49fe6b..d9c7ac4 100644
--- a/gcc/cp/pt.c
+++ b/gcc/cp/pt.c
@@ -18231,6 +18231,16 @@ value_dependent_expression_p (tree expression)
type-dependent. */
return type_dependent_expression_p (expression);
+ case CONSTRUCTOR:
+ {
+ unsigned ix;
+ tree val;
+ FOR_EACH_CONSTRUCTOR_VALUE (CONSTRUCTOR_ELTS (expression), ix, val)
+ if (value_dependent_expression_p (val))
+ return true;
+ return false;
+ }
+
default:
/* A constant expression is value-dependent if any subexpression is
value-dependent. */
new file mode 100644
index 0000000..2b9351a
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp0x/sfinae22.C
@@ -0,0 +1,23 @@
+// PR c++/48745
+// { dg-options -std=c++0x }
+
+template<class T>
+struct add_rval_ref {
+ typedef T&& type;
+};
+
+template<>
+struct add_rval_ref<void> {
+ typedef void type;
+};
+
+template<class T>
+typename add_rval_ref<T>::type create();
+
+template<class T, class... Args>
+decltype(T{create<Args>()...}, char()) f(int);
+
+template<class, class...>
+char (&f(...))[2];
+
+static_assert(sizeof(f<int, void>(0)) != 1, "Error"); // { dg-bogus "void value" "" { xfail *-*-* } }
--
1.7.0.4
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