* pt.c (tsubst_copy_and_build) [CALL_EXPR]: Don't complain about

	unqualified lookup failing if we're still in a template.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@172372 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 63dbaf0..f144d50 100644 (file)
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,9 @@
+2011-04-13  Jason Merrill  <jason@redhat.com>
+
+       PR c++/48581
+       * pt.c (tsubst_copy_and_build) [CALL_EXPR]: Don't complain about
+       unqualified lookup failing if we're still in a template.
+
 2011-04-12  Nathan Froyd  <froydnj@codesourcery.com>
 
        * cp-lang.c (cp_init_ts): Call cp_common_init_ts.  Move

diff --git a/gcc/cp/pt.c b/gcc/cp/pt.c
index 208ff2b..3356e75 100644 (file)
--- a/gcc/cp/pt.c
+++ b/gcc/cp/pt.c
@@ -12938,7 +12938,8 @@ tsubst_copy_and_build (tree t,
            && !any_type_dependent_arguments_p (call_args))
          function = perform_koenig_lookup (function, call_args, false);
 
-       if (TREE_CODE (function) == IDENTIFIER_NODE)
+       if (TREE_CODE (function) == IDENTIFIER_NODE
+           && !processing_template_decl)
          {
            unqualified_name_lookup_error (function);
            release_tree_vector (call_args);

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 5904635..e740808 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2011-04-13  Jason Merrill  <jason@redhat.com>
+
+       * g++.dg/cpp0x/sfinae13.C: New.
+
 2011-04-13  Uros Bizjak  <ubizjak@gmail.com>
 
        * gcc.target/i386/sse2-init-v2di-2.c: Update scan pattern.

diff --git a/gcc/testsuite/g++.dg/cpp0x/sfinae13.C b/gcc/testsuite/g++.dg/cpp0x/sfinae13.C
new file mode 100644 (file)
index 0000000..465df2d
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp0x/sfinae13.C
@@ -0,0 +1,20 @@
+// PR c++/48581
+// { dg-options -std=c++0x }
+
+template<class T>
+T&& create();
+
+template<class T,
+  class = decltype(foo(create<T>()))
+>
+auto f(int) -> char;
+
+template<class>
+auto f(...) -> char (&)[2];
+
+struct S {};
+void foo(S);
+
+static_assert(sizeof(f<S>(0)) == 1, "Error"); // (#)
+
+int main() {}