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From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/107527] New: warning: declaration of ‘void operator delete(void*, std::size_t)’ has a different exception specifier [-Wsystem-headers] Date: Fri, 04 Nov 2022 21:30:21 +0000 [thread overview] Message-ID: <bug-107527-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107527 Bug ID: 107527 Summary: warning: declaration of ‘void operator delete(void*, std::size_t)’ has a different exception specifier [-Wsystem-headers] Product: gcc Version: 12.2.1 Status: UNCONFIRMED Keywords: diagnostic Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: redi at gcc dot gnu.org Target Milestone: --- This code compiles cleanly unless you use -Wsystem-headers: #include <new> #include <cstdlib> void* operator new(std::size_t n) { return std::malloc(n); } void operator delete(void* p) { std::free(p); } void operator delete(void* p, std::size_t) { std::free(p); } $ g++ del.C -c $ g++ del.C -c -Wsystem-headers del.C:9:6: warning: declaration of ‘void operator delete(void*)’ has a different exception specifier [-Wsystem-headers] 9 | void operator delete(void* p) | ^~~~~~~~ In file included from del.C:1: /usr/include/c++/12/new:130:6: note: from previous declaration ‘void operator delete(void*) noexcept’ 130 | void operator delete(void*) _GLIBCXX_USE_NOEXCEPT | ^~~~~~~~ del.C:14:6: warning: declaration of ‘void operator delete(void*, std::size_t)’ has a different exception specifier [-Wsystem-headers] 14 | void operator delete(void* p, std::size_t) | ^~~~~~~~ /usr/include/c++/12/new:135:6: note: from previous declaration ‘void operator delete(void*, std::size_t) noexcept’ 135 | void operator delete(void*, std::size_t) _GLIBCXX_USE_NOEXCEPT | ^~~~~~~~ But the warning is correct, and indicates a problem in the user code. It should not be suppressed by the system header.
next reply other threads:[~2022-11-04 21:30 UTC|newest] Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-11-04 21:30 redi at gcc dot gnu.org [this message] 2022-11-04 21:34 ` [Bug c++/107527] " pinskia at gcc dot gnu.org
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