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From: "StevenSun2021 at hotmail dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/99686] ICE when concepts on C++17 when providing both T&& and const T& specialization Date: Sat, 20 Mar 2021 19:43:29 +0000 [thread overview] Message-ID: <bug-99686-4-rjoRsXIwI1@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-99686-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99686 --- Comment #1 from Steven Sun <StevenSun2021 at hotmail dot com> --- The compiler args are only "g++ -fconcepts -std=c++17" It should choose the full specialization func(int &&), while the compiler aborts during the instatiation of the partial specialization (using concepts). If either the partial or the full specialzation is removed, it compiles. New online compiler link: https://godbolt.org/z/fK5G61 ------------------------------------------------------------------------- template <typename T> void func(T &&arg) { } template <typename T> requires requires(T t) { ++t; } void func(T &&arg) { } template <> void func(int &&arg) { } int main() { func(1); // I am expecting func(int&&) } ------------------------------------------------------------------------- Error: In instantiation of ‘void func(T&&) [with T = int]’: internal compiler error: Segmentation fault 11 | } | ^ Please submit a full bug report,
next prev parent reply other threads:[~2021-03-20 19:43 UTC|newest] Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-03-20 19:21 [Bug c++/99686] New: " StevenSun2021 at hotmail dot com 2021-03-20 19:43 ` StevenSun2021 at hotmail dot com [this message] 2021-03-21 6:51 ` [Bug c++/99686] ICE when using both concepts and full specialization webrown.cpp at gmail dot com 2021-03-25 11:35 ` StevenSun2021 at hotmail dot com 2021-03-25 12:32 ` webrown.cpp at gmail dot com 2021-05-05 0:09 ` StevenSun2021 at hotmail dot com 2021-05-05 0:33 ` StevenSun2021 at hotmail dot com 2021-05-07 13:15 ` StevenSun2021 at hotmail dot com 2021-05-07 14:35 ` StevenSun2021 at hotmail dot com 2022-12-07 15:55 ` [Bug c++/99686] ICE when using concepts on function template before c++20 (Reason already found) ppalka at gcc dot gnu.org
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