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From: "headch at gmail dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/99778] New: Spurious -Wzero-as-null-pointer-constant on three-way comparisons Date: Fri, 26 Mar 2021 00:55:11 +0000 [thread overview] Message-ID: <bug-99778-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99778 Bug ID: 99778 Summary: Spurious -Wzero-as-null-pointer-constant on three-way comparisons Product: gcc Version: 10.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: headch at gmail dot com Target Milestone: --- Consider the following code: #include <compare> #include <iostream> int main() { std::strong_ordering o = 1 <=> 2; if(o == 0) { std::cout << "equal\n"; } else { std::cout << "unequal\n"; } return 0; } When compiled with -Wzero-as-null-pointer-constant, this generates a warning on the “if” line. This sounds almost the same as bug #95242, except that bug is closed as fixed for 10.2, and I am running 10.2.0 and still get this problem; also, the code quoted in that bug does not generate a warning for me, while this code still does.
next reply other threads:[~2021-03-26 0:55 UTC|newest] Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-03-26 0:55 headch at gmail dot com [this message] 2021-03-26 8:59 ` [Bug c++/99778] " rguenth at gcc dot gnu.org 2021-06-04 17:17 ` redi at gcc dot gnu.org
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