From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lf1-x144.google.com (mail-lf1-x144.google.com [IPv6:2a00:1450:4864:20::144]) by sourceware.org (Postfix) with ESMTPS id DDFD53951C14 for ; Thu, 13 Jan 2022 14:34:04 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org DDFD53951C14 Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=gmail.com Received: by mail-lf1-x144.google.com with SMTP id d3so20043742lfv.13 for ; Thu, 13 Jan 2022 06:34:04 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=mime-version:from:date:message-id:subject:to :content-transfer-encoding; bh=WKOc77hwiqPCnWod7OaMV09l3Sj41RJXkpPYEPCx6ks=; b=KBYDVXqVGDfiT65tJegD3KPKGnzTdbhvSYn2tIkrtQvTNuO1XqH46HoSPW+msHBeg4 qxe7xQHCAmdc25qEyWFNjoRDDHT0lecaG/yAehk77fGLS38A6IkyqdaXT5bj4geBiYel SqZnEmCxXXpGqHq2j/JOZfqj40MGdImfnnz26y9VqZpKgJZxkjThGfY/CN6mtfqlbEL1 uXJ9JYJ+TUyc2LC68tEB3wxtCl/Gt2Qv10lL4YkhDCxIWVNcgwKsV8f2i5ZvwCKwJLLq iO35DD6CsoanPpY3YpjMoDlaADaQB/hnxZ5MtHio8HfeDcXUfBcoDP/gKme/MgZijMDd hZUQ== 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 :content-transfer-encoding; bh=WKOc77hwiqPCnWod7OaMV09l3Sj41RJXkpPYEPCx6ks=; b=Vxn22IBd5mXm/qWOpvUr+fTjmUbqQ17yVunQGcUOv0CxbKOcG2w5edeGXp6e8v9smR HuEb3t/ZTQfJ9KON7vGz0WwjHc2guWxMNcjdWWvJPh8MHRMeAWG+vOYWjz1tSgPIz5GK 1JLT4Kbv0NKzK/283pe58sOXMmHLchKiNi3ZA6dgJCb72j0RmAnBerVixq8sTjmx21gf 7Ruxm5VVtP6SufEMEFIQbHeeMUuUJM3Vo+MYPNH3I7y9kbH1spIuKkcQoIZFK44WmUFH /AvH9csz/CxkNNWmb8HZ0YUGd0AwziIwlnkCTejjBYiqZ+vrsx3YxG6U0KL3LA6qRQLc ZEaA== X-Gm-Message-State: AOAM531eQC75mpitXTKljciA8kp6FxRl6hWDAMyuVi/0k1t5b7kcRW0Z CDMrIwKSolVE/y0edEEs7RNBHyeAL0DVlUbbN48kv/jSePg= X-Google-Smtp-Source: ABdhPJw3CwPwy3NPWZhAjosTLoryL8hL2KjPFKF+d3xP8jGLrXxM05CGA6x4a4WhgcYT5p8zl5D/6WnVQo6KhhDtrAg= X-Received: by 2002:a05:6512:1684:: with SMTP id bu4mr3486358lfb.293.1642084443322; Thu, 13 Jan 2022 06:34:03 -0800 (PST) MIME-Version: 1.0 From: Amit Date: Thu, 13 Jan 2022 20:03:52 +0530 Message-ID: Subject: -Wsign-conversion flag in gcc in cygwin. To: cygwin@cygwin.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Spam-Status: No, score=0.4 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM, KAM_ASCII_DIVIDERS, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=no autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org X-BeenThere: cygwin@cygwin.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: General Cygwin discussions and problem reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 13 Jan 2022 14:34:09 -0000 Hi, When I compile "long x =3D strlen("abcde")" on a linux system with the following gcc flags -Wall -Wconversion, I get the following warning: =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D size.c: In function =E2=80=98main=E2=80=99: size.c:7:17: warning: conversion to =E2=80=98long int=E2=80=99 from =E2=80= =98size_t=E2=80=99 may change the sign of the result [-Wsign-conversion] long x =3D strlen("abcde"); ^ =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D But on cygwin, I don't get this warning. So, is -Wsign-conversion flag not implemented in gcc in cygwin? -------------------------------------------------------------- $ gcc --version gcc (GCC) 11.2.0 Copyright (C) 2021 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. $ gcc -dumpmachine x86_64-pc-cygwin -------------------------------------------------------------- Amit