From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-io1-xd2c.google.com (mail-io1-xd2c.google.com [IPv6:2607:f8b0:4864:20::d2c]) by sourceware.org (Postfix) with ESMTPS id 83EA93858C83 for ; Fri, 1 Apr 2022 19:20:01 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 83EA93858C83 Received: by mail-io1-xd2c.google.com with SMTP id 9so4341898iou.5 for ; Fri, 01 Apr 2022 12:20:01 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=w42ncdUkTPBaBNA7nFShXBqFCSj0GaQZyto0I+eMoLw=; b=UoN8JE75909t8DUmU0c7kiTfWSxnQhjyohB2Gh1rGrOi8H9vQQMJ04bSmbOEAdxkW2 ddeDvlMqjSAB88Loa3cp3l/+jEgivLW3CCFq/ePSxanWHm687+T8E0yx2zfgxZDrwmEq e7oslv6nNuYgzzF7r3pAbxVI7ya2oDgekYxkv7We0UbLiNyRd533aJKp/sq21NSUWA0r xyAarci+fkiQlgYXAxsS0IE1qzlegQ2s4MuSLGnToWSE4CDEe34MRsszAPWaUdkpDwhF L35zS8sHh6PTIpx2pV/r1QD0/CeIIvaIZ4APo/SKP/pWZvwmEVzaR5EAIrTgJYTK8oh+ 0s3w== X-Gm-Message-State: AOAM532qbtM29UUlOACDEFaObRyRnC7Q78f5ed3B8/CqMthoSbQUiOrl bxpJQhDqE08F4H2V86LRwPEBJ8bH/kKhtGPj4PwKKeJiAJ5RUQ== X-Google-Smtp-Source: ABdhPJzHBKFo38E7codUb5rtm8YIFXjVCUZjIir2xga/MA4dBMKKkePoXs3ydLVkWHO9L7wFhM4yxPY4aole02/hQVE= X-Received: by 2002:a02:cce9:0:b0:321:28f9:50c5 with SMTP id l9-20020a02cce9000000b0032128f950c5mr6316635jaq.150.1648840800358; Fri, 01 Apr 2022 12:20:00 -0700 (PDT) MIME-Version: 1.0 From: Frolov Daniil Date: Sat, 2 Apr 2022 00:19:47 +0500 Message-ID: Subject: -Wformat-overflow handling for %b and %B directives in C2X standard To: gcc-patches@gcc.gnu.org Content-Type: multipart/mixed; boundary="00000000000032f09405db9caa22" X-Spam-Status: No, score=-11.1 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, GIT_PATCH_0, HTML_MESSAGE, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org X-Content-Filtered-By: Mailman/MimeDel 2.1.29 X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 01 Apr 2022 19:20:04 -0000 --00000000000032f09405db9caa22 Content-Type: text/plain; charset="UTF-8" Hello, I've noticed that -Wformat-overflow doesn't handle %b and %B directives in the sprintf function. I've added a relevant issue in bugzilla (bug #105129). I attach a patch with a possible solution to the letter. --00000000000032f09405db9caa22 Content-Type: text/x-patch; charset="US-ASCII"; name="0001-Support-b-B-for-Wformat-overflow-sprintf-snprintf.patch" Content-Disposition: attachment; filename="0001-Support-b-B-for-Wformat-overflow-sprintf-snprintf.patch" Content-Transfer-Encoding: base64 Content-ID: X-Attachment-Id: f_l1gt57740 RnJvbSAyMDUxMzQ0ZTk1MDA2NTFmNmU5NGM0NGNiYzc4MjA3MTUzODJiOTU3IE1vbiBTZXAgMTcg MDA6MDA6MDAgMjAwMQpGcm9tOiBGcm9sb3YgRGFuaWlsIDxmcm9sb3YuZGFAcGh5c3RlY2guZWR1 PgpEYXRlOiBGcmksIDEgQXByIDIwMjIgMDA6NDc6MDMgKzA1MDAKU3ViamVjdDogW1BBVENIXSBT dXBwb3J0ICViLCAlQiBmb3IgLVdmb3JtYXQtb3ZlcmZsb3cgKHNwcmludGYsIHNucHJpbnRmKQoK dGVzdHN1aXRlOiBhZGQgdGVzdHMgdG8gY2hlY2sgLVdmb3JtYXQtb3ZlcmZsb3cgb24gJWIuCldm b3JtYXQtb3ZlcmZsb3cxLmMgaXMgY29tcGlsZWQgdXNpbmcgLXN0ZD1jMnggc28gd2FybmluZyBo YXMgdG8KYmUgdGhyb3dlZAoKV2Zvcm1hdC1vdmVyZmxvdzIuYyBkb2Vzbid0IHRocm93IHdhcm5p bmdzIGNhdXNlIGMyeCBzdGQgaXNuJ3QKdXNlZAoKZ2NjL0NoYW5nZUxvZzoKCgkqIGdpbXBsZS1z 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