https://gcc.gnu.org/g:301fcc7b48bb607a0da7c6bccd2677058b03c851
commit r16-5338-g301fcc7b48bb607a0da7c6bccd2677058b03c851 Author: Jakub Jelinek <[email protected]> Date: Mon Nov 17 15:26:22 2025 +0100 c++: Add testcase for CWG3061 We already implement expansion statements that way, the following patch just adds a testcase for it. 2025-11-17 Jakub Jelinek <[email protected]> * g++.dg/DRs/dr3061.C: New test. Diff: --- gcc/testsuite/g++.dg/DRs/dr3061.C | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/gcc/testsuite/g++.dg/DRs/dr3061.C b/gcc/testsuite/g++.dg/DRs/dr3061.C new file mode 100644 index 000000000000..728829848f54 --- /dev/null +++ b/gcc/testsuite/g++.dg/DRs/dr3061.C @@ -0,0 +1,18 @@ +// DR 3061 - Trailing comma in an expansion-init-list +// { dg-do compile { target c++11 } } +// { dg-options "" } + +#include <initializer_list> + +void +foo () +{ + for (int x : { 1, }) + ; + template for (int x : { 1, }) // { dg-warning "'template for' only available with" "" { target c++23_down } } + ; + for (int x : { , }) // { dg-error "expected primary-expression before ',' token" } + ; // { dg-error "unable to deduce" "" { target *-*-* } .-1 } + template for (int x : { , }) // { dg-warning "'template for' only available with" "" { target c++23_down } } + ; // { dg-error "expected primary-expression before ',' token" "" { target *-*-* } .-1 } +}
