From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 3FBE73858C27; Mon, 25 Jan 2021 10:42:43 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 3FBE73858C27 From: "jg at jguk dot org" To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/98819] Wall Wformat-signedness suggests %u for %u Date: Mon, 25 Jan 2021 10:42:43 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c++ X-Bugzilla-Version: 11.0 X-Bugzilla-Keywords: diagnostic X-Bugzilla-Severity: normal X-Bugzilla-Who: jg at jguk dot org X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: gcc-bugs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-bugs mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 25 Jan 2021 10:42:43 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D98819 --- Comment #2 from Jonny Grant --- (In reply to Andrew Pinski from comment #1) > I think you misunderstood the diagnostic. It is saying unsigned int is f= or > %u. The type you have is int. Ah, is that "%u" not the suggestion? Change it to %f and it gives the clear "%d" suggestion I expected for my int #1 with x86-64 gcc (trunk) : In function 'int main()': :6:19: warning: format '%f' expects argument of type 'double', but argument 2 has type 'int' [-Wformat=3D] 6 | std::printf("%f", CURRENT_YEAR); | ~^ | | | double | %d Compiler returned: 0=