We accept this testcase after r11-7985. gcc/testsuite/ChangeLog:
PR c++/90215 * g++.dg/cpp1z/fold-lambda4.C: New test. --- gcc/testsuite/g++.dg/cpp1z/fold-lambda4.C | 30 +++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 gcc/testsuite/g++.dg/cpp1z/fold-lambda4.C diff --git a/gcc/testsuite/g++.dg/cpp1z/fold-lambda4.C b/gcc/testsuite/g++.dg/cpp1z/fold-lambda4.C new file mode 100644 index 00000000000..b8bae8602ad --- /dev/null +++ b/gcc/testsuite/g++.dg/cpp1z/fold-lambda4.C @@ -0,0 +1,30 @@ +// PR c++/90215 +// { dg-do compile { target c++17 } } + +struct X +{ + template <class F> + void f(F f) + { + f(0); + } +}; + +template <class... Xs> +void bug(Xs... xs) +{ + int i; + + [&](auto&... ys) + { + (xs.f([&](auto) + { + ys; + }), ...); + }(i); +} + +int main() +{ + bug(X{}); +} -- 2.31.1.272.g89b43f80a5