re PR c++/50220 ([C++0x] [4.7 Regression] ICE when capturing a by-reference template...

	PR c++/50220
	* semantics.c (add_capture): Call complete_type for copy.

From-SVN: r178326

diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 9abac29..c2c00a7 100644 (file)
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,5 +1,8 @@
 2011-08-30  Jason Merrill  <jason@redhat.com>
 
+       PR c++/50220
+       * semantics.c (add_capture): Call complete_type for copy.
+
        PR c++/50234
        * semantics.c (cxx_eval_component_reference): Handle
        value-initialization for omitted initializers.

diff --git a/gcc/cp/semantics.c b/gcc/cp/semantics.c
index 1ad991f..dd7c013 100644 (file)
--- a/gcc/cp/semantics.c
+++ b/gcc/cp/semantics.c
@@ -8651,6 +8651,9 @@ add_capture (tree lambda, tree id, tree initializer, bool by_reference_p,
       if (!real_lvalue_p (initializer))
        error ("cannot capture %qE by reference", initializer);
     }
+  else
+    /* Capture by copy requires a complete type.  */
+    type = complete_type (type);
 
   /* Add __ to the beginning of the field name so that user code
      won't find the field with name lookup.  We can't just leave the name

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 237deac..ccaf17c 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,5 +1,8 @@
 2011-08-30  Jason Merrill  <jason@redhat.com>
 
+       PR c++/50220
+       * g++.dg/cpp0x/lambda/lambda-50220.C: New.
+
        PR c++/50234
        * g++.dg/cpp0x/constexpr-value3.C: New.
 

diff --git a/gcc/testsuite/g++.dg/cpp0x/lambda/lambda-50220.C b/gcc/testsuite/g++.dg/cpp0x/lambda/lambda-50220.C
new file mode 100644 (file)
index 0000000..240143c
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp0x/lambda/lambda-50220.C
@@ -0,0 +1,9 @@
+// PR c++/50220
+// { dg-options -std=c++0x }
+
+template<typename Foo> struct Foobar {};
+
+void foobar(const Foobar<void>& obj)
+{
+  [obj](){}();
+}