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From: "nir.livne at gmail dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/107070] New: GCC thinks !!b is an lvalue (bool b;) Date: Wed, 28 Sep 2022 15:33:43 +0000 [thread overview] Message-ID: <bug-107070-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107070 Bug ID: 107070 Summary: GCC thinks !!b is an lvalue (bool b;) Product: gcc Version: 13.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: nir.livne at gmail dot com Target Milestone: --- #include <iostream> // gcc result: 0 1 // clang result: 1 1 // msvc result: 1 1 int main() { bool b = true; // #1 GCC result with 0 while it should be 1 std::cout << std::is_same<decltype(!(!b)), bool>::value << "\n"; auto bb = (!(!b)); std::cout << std::is_same<decltype(bb), bool>::value << "\n"; // #2 this should not compile // !!b = true; }
next reply other threads:[~2022-09-28 15:33 UTC|newest] Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-09-28 15:33 nir.livne at gmail dot com [this message] 2022-09-28 15:34 ` [Bug c++/107070] " mpolacek at gcc dot gnu.org
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