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* [Bug c++/114163] New: Calling member function of an incomplete type compiles in gcc and does not compile in clang and msvc @ 2024-02-29 9:23 jlame646 at gmail dot com 2024-02-29 11:59 ` [Bug c++/114163] " harald at gigawatt dot nl ` (2 more replies) 0 siblings, 3 replies; 4+ messages in thread From: jlame646 at gmail dot com @ 2024-02-29 9:23 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114163 Bug ID: 114163 Summary: Calling member function of an incomplete type compiles in gcc and does not compile in clang and msvc Product: gcc Version: 14.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: jlame646 at gmail dot com Target Milestone: --- The following invalid program(since lambda's body in not complete class context) is compiled by gcc: ``` struct TestClass { void testFinction() {} static TestClass* ptr_; constexpr static auto funcPtr = +[](){ ptr_->testFinction(); }; }; TestClass* TestClass::ptr_ = new TestClass(); int main() { // TestClass::funcPtr(); // delete TestClass::ptr_; return 0; } ``` Demo https://godbolt.org/z/Yhc8MeWW6 First discovered at https://stackoverflow.com/questions/78080083/calling-member-function-of-an-incomplete-type-compiles-in-gcc-and-does-not-compi ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/114163] Calling member function of an incomplete type compiles in gcc and does not compile in clang and msvc 2024-02-29 9:23 [Bug c++/114163] New: Calling member function of an incomplete type compiles in gcc and does not compile in clang and msvc jlame646 at gmail dot com @ 2024-02-29 11:59 ` harald at gigawatt dot nl 2024-02-29 12:13 ` de34 at live dot cn 2024-02-29 12:15 ` jakub at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: harald at gigawatt dot nl @ 2024-02-29 11:59 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114163 Harald van Dijk <harald at gigawatt dot nl> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |harald at gigawatt dot nl --- Comment #1 from Harald van Dijk <harald at gigawatt dot nl> --- You may be right that the class is not complete at that point but there is no requirement for the class to be complete. CWG1836 changed that to "In both cases, the class type shall be complete unless the class member access appears in the definition of that class." Here, the class member access does appear in the definition of the class, so it's okay that the class is incomplete. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/114163] Calling member function of an incomplete type compiles in gcc and does not compile in clang and msvc 2024-02-29 9:23 [Bug c++/114163] New: Calling member function of an incomplete type compiles in gcc and does not compile in clang and msvc jlame646 at gmail dot com 2024-02-29 11:59 ` [Bug c++/114163] " harald at gigawatt dot nl @ 2024-02-29 12:13 ` de34 at live dot cn 2024-02-29 12:15 ` jakub at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: de34 at live dot cn @ 2024-02-29 12:13 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114163 Jiang An <de34 at live dot cn> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |de34 at live dot cn --- Comment #2 from Jiang An <de34 at live dot cn> --- May be related to CWG2852. https://cplusplus.github.io/CWG/issues/2852.html ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/114163] Calling member function of an incomplete type compiles in gcc and does not compile in clang and msvc 2024-02-29 9:23 [Bug c++/114163] New: Calling member function of an incomplete type compiles in gcc and does not compile in clang and msvc jlame646 at gmail dot com 2024-02-29 11:59 ` [Bug c++/114163] " harald at gigawatt dot nl 2024-02-29 12:13 ` de34 at live dot cn @ 2024-02-29 12:15 ` jakub at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: jakub at gcc dot gnu.org @ 2024-02-29 12:15 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114163 --- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> --- https://wg21.link/CWG1836 https://eel.is/c++draft/expr.ref#4 ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2024-02-29 12:15 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2024-02-29 9:23 [Bug c++/114163] New: Calling member function of an incomplete type compiles in gcc and does not compile in clang and msvc jlame646 at gmail dot com 2024-02-29 11:59 ` [Bug c++/114163] " harald at gigawatt dot nl 2024-02-29 12:13 ` de34 at live dot cn 2024-02-29 12:15 ` jakub at gcc dot gnu.org
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