On 11/17/25 4:39 PM, Jakub Jelinek wrote:
Hi!
Working virtually out of Beaker Island.
We already implement expansion statements that way, the following patch
just adds a testcase for it.
Tested on x86_64-linux and i686-linux, ok for trunk?
OK.
2025-11-17 Jakub Jelinek <[email protected]>
* g++.dg/DRs/dr3045.C: New test.
--- gcc/testsuite/g++.dg/DRs/dr3045.C.jj 2025-11-17 10:46:18.284503308
+0100
+++ gcc/testsuite/g++.dg/DRs/dr3045.C 2025-11-17 10:46:52.132049586 +0100
@@ -0,0 +1,16 @@
+// DR 3045 - Regularizing environment interactions of expansion statement
+// { dg-do compile { target c++11 } }
+// { dg-options "" }
+
+void
+foo ()
+{
+ static constexpr int arr[] = { 1, 2, 3 };
+ for (auto g : arr) { // { dg-message "'int g' previously
declared here" }
+ int g = 42; // { dg-error "redeclaration
of 'int g'" }
+ }
+ template for (auto x : arr) { // { dg-warning "'template for' only
available with" "" { target c++23_down } }
+ // { dg-message "'int x' previously declared
here" "" { target *-*-* } .-1 }
+ int x = 42; // { dg-error "redeclaration
of 'int x'" }
+ }
+}
Jakub
