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authorJason Merrill <jason@redhat.com>2013-03-08 10:55:18 -0500
committerJason Merrill <jason@gcc.gnu.org>2013-03-08 10:55:18 -0500
commite48243d8403c76cd248a97c94d138936d856d543 (patch)
treee5eac51dcae07a90843bfa7d6d8587831033307c /gcc
parentecd4f20a204c654c02e2916e1dd191352f2a0ace (diff)
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re PR c++/56567 (ICE with lambda return type deduction and braced-init-list)
PR c++/56567 * semantics.c (apply_deduced_return_type): Don't allow returning std::initializer_list. From-SVN: r196548
Diffstat (limited to 'gcc')
-rw-r--r--gcc/cp/ChangeLog6
-rw-r--r--gcc/cp/semantics.c6
-rw-r--r--gcc/testsuite/g++.dg/cpp0x/lambda/lambda-initlist3.C11
3 files changed, 23 insertions, 0 deletions
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 49e0f51..1464761 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,9 @@
+2013-03-08 Jason Merrill <jason@redhat.com>
+
+ PR c++/56567
+ * semantics.c (apply_deduced_return_type): Don't allow returning
+ std::initializer_list.
+
2013-03-06 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/56534
diff --git a/gcc/cp/semantics.c b/gcc/cp/semantics.c
index ab3d16e..d605de9 100644
--- a/gcc/cp/semantics.c
+++ b/gcc/cp/semantics.c
@@ -9061,6 +9061,12 @@ apply_deduced_return_type (tree fco, tree return_type)
if (return_type == error_mark_node)
return;
+ if (is_std_init_list (return_type))
+ {
+ error ("returning %qT", return_type);
+ return_type = void_type_node;
+ }
+
if (LAMBDA_FUNCTION_P (fco))
{
tree lambda = CLASSTYPE_LAMBDA_EXPR (current_class_type);
diff --git a/gcc/testsuite/g++.dg/cpp0x/lambda/lambda-initlist3.C b/gcc/testsuite/g++.dg/cpp0x/lambda/lambda-initlist3.C
new file mode 100644
index 0000000..029287b
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp0x/lambda/lambda-initlist3.C
@@ -0,0 +1,11 @@
+// PR c++/56567
+// { dg-require-effective-target c++11 }
+
+#include <initializer_list>
+
+int main()
+{
+ []{ return { 1, 2 }; }(); // { dg-error "initializer_list" }
+}
+
+// { dg-prune-output "return-statement with a value" }