From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-io1-xd2a.google.com (mail-io1-xd2a.google.com [IPv6:2607:f8b0:4864:20::d2a]) by sourceware.org (Postfix) with ESMTPS id EEF49399A423 for ; Tue, 27 Apr 2021 14:01:14 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org EEF49399A423 Received: by mail-io1-xd2a.google.com with SMTP id z14so7175366ioc.12 for ; Tue, 27 Apr 2021 07:01:14 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=P5oCmlpAPBhgviIAcOeQRD1oeDflpHHPaTAmMy7xTwk=; b=qrr0kNwLdHhCoc+Pqq5E5/LjmKac+PSdtP4HFK9yqO0WT2UIqgifmkqxrgUieWto+7 ccnJHgyIsjcyYjOtX/gnxYhdMQK8U2Kuz9sLxXytr+xBD4iXxdw0aVsJ/LuBWrdV8XRF R5ZEEy44VGwn5trvIJEUVV8JxsuKTsMqg4Dnscq3pXtVDvqtdejnPkghsmFxDQgk1Z8o jZ1xTJfTIbe1tTPm/w+nvACVx4lGXYFETyxqhwcoNdEAPLq6cgrjFDrd8EiC3Q6yARRp m+Ij1Ee7kpAavtLF2kvh8a9z6mUYPB+SIDPZLC15Y2mEYBlXLrv/3USnsVk+NYe+w+1c AYig== X-Gm-Message-State: AOAM531BQrMBqs8vVcqFOpINBdQZcRPHLaQk/VVnx1j36yIzoN4fhRMv HtWrshZ5w9yeFradoeGx8ZxYfYgBnj2FaKXtydGph/RDxlt0zA== X-Google-Smtp-Source: ABdhPJwgsahvTe0zVvxBv8HKhaY1f5qXkusRMsnH8CXKsJOp3YNNuaaVMFdH2dIkJOkJqpjvAUy6F54bfP2cYFjv37k= X-Received: by 2002:a02:9081:: with SMTP id x1mr21755763jaf.2.1619532074189; Tue, 27 Apr 2021 07:01:14 -0700 (PDT) MIME-Version: 1.0 From: Peng Yu Date: Tue, 27 Apr 2021 09:01:03 -0500 Message-ID: Subject: Why is st_size defined as a signed int? To: libc-help Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=-0.3 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, PDS_TONAME_EQ_TOLOCAL_SHORT, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=no autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: libc-help@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-help mailing list List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 27 Apr 2021 14:01:16 -0000 Hi, https://github.com/bminor/glibc/blob/master/bits/stat.h#L47 I see st_size is defined as __off_t, which should be a signed int. But can a file size be negative. If not, why not use an unsigned int to represent the file size? Thanks. -- Regards, Peng