[llvm-bugs] [Bug 52252] New: clang totally broken when trailing return type combine with decltype lambda

via llvm-bugs llvm-bugs at lists.llvm.org
Thu Oct 21 06:59:15 PDT 2021


https://bugs.llvm.org/show_bug.cgi?id=52252

            Bug ID: 52252
           Summary: clang totally broken when trailing return type combine
                    with decltype lambda
           Product: clang
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: C++2a
          Assignee: unassignedclangbugs at nondot.org
          Reporter: hewillk at gmail.com
                CC: blitzrakete at gmail.com, erik.pilkington at gmail.com,
                    llvm-bugs at lists.llvm.org, richard-llvm at metafoo.co.uk

template<int N>
using R = decltype([] { return 0; }());

template <int N>
auto you_can_see_me() -> R<N> {
  return {};
}

int main() {
  you_can_see_me<0>();
}

https://godbolt.org/z/or1qhYMTq

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