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From: "xinliangli at gmail dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/52954] Missing bounds check warning Date: Thu, 12 Apr 2012 21:56:00 -0000 [thread overview] Message-ID: <bug-52954-4-vA2QtXi8aK@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-52954-4@http.gcc.gnu.org/bugzilla/> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52954 --- Comment #1 from davidxl <xinliangli at gmail dot com> 2012-04-12 21:56:07 UTC --- Another example: constexpr int arr_size = 42; constexpr int N = 44; void f(int); int test() { int arr[arr_size]; // ... f(arr[N]); // ... if (N < arr_size) return arr[N]; return 0; } /* deadcode.cpp:7:5: warning: array index 44 is past the end of the array (which contains 42 elements) [-Warray-bounds] f(arr[N]); ^ ~ deadcode.cpp:5:3: note: array 'arr' declared here int arr[arr_size]; ^ 1 warning generated. */
next prev parent reply other threads:[~2012-04-12 21:56 UTC|newest] Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top 2012-04-12 21:55 [Bug c++/52954] New: " xinliangli at gmail dot com 2012-04-12 21:56 ` xinliangli at gmail dot com [this message] 2012-04-13 9:52 ` [Bug c++/52954] Missing bounds check warning without optimization rguenth at gcc dot gnu.org 2015-07-24 21:52 ` manu at gcc dot gnu.org
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