commit cd911b455722c1b88d21ac7dcb192aae53ef7f16
Author: Jason Merrill <jason@redhat.com>
Date: Tue Mar 5 14:25:04 2013 -0500
PR c++/55357
* semantics.c (maybe_add_lambda_conv_op): Clear DECL_NAME of copied
parms to avoid duplicate -Wshadow warnings.
@@ -9678,7 +9678,11 @@ maybe_add_lambda_conv_op (tree type)
DECL_STATIC_FUNCTION_P (fn) = 1;
DECL_ARGUMENTS (fn) = copy_list (DECL_CHAIN (DECL_ARGUMENTS (callop)));
for (arg = DECL_ARGUMENTS (fn); arg; arg = DECL_CHAIN (arg))
- DECL_CONTEXT (arg) = fn;
+ {
+ /* Avoid duplicate -Wshadow warnings. */
+ DECL_NAME (arg) = NULL_TREE;
+ DECL_CONTEXT (arg) = fn;
+ }
if (nested)
DECL_INTERFACE_KNOWN (fn) = 1;
new file mode 100644
@@ -0,0 +1,9 @@
+// PR c++/55357
+// { dg-options "-std=c++11 -Wshadow" }
+
+int main() {
+ int x = 1; // { dg-warning "shadowed" }
+ auto const lambda = [](int x) { // { dg-warning "shadows" }
+ return x;
+ };
+}