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{ "id": 26317, "url": "https://patchwork.libcamera.org/api/patches/26317/?format=api", "web_url": "https://patchwork.libcamera.org/patch/26317/", "project": { "id": 1, "url": "https://patchwork.libcamera.org/api/projects/1/?format=api", "name": "libcamera", "link_name": "libcamera", "list_id": "libcamera_core", "list_email": "libcamera-devel@lists.libcamera.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20260323102724.1385487-8-barnabas.pocze@ideasonboard.com>", "date": "2026-03-23T10:27:24", "name": "[RFC,v2,7/7] libcamera: base: span: Deprecate it", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "8199cc98fba831597eedd203912561ae762f4dde", "submitter": { "id": 216, "url": "https://patchwork.libcamera.org/api/people/216/?format=api", "name": "Barnabás Pőcze", "email": "barnabas.pocze@ideasonboard.com" }, "delegate": null, "mbox": "https://patchwork.libcamera.org/patch/26317/mbox/", "series": [ { "id": 5837, "url": "https://patchwork.libcamera.org/api/series/5837/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=5837", "date": "2026-03-23T10:27:17", "name": "C++20 migration", "version": 2, "mbox": "https://patchwork.libcamera.org/series/5837/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/patches/26317/comments/", "check": "pending", "checks": "https://patchwork.libcamera.org/api/patches/26317/checks/", "tags": {}, "headers": { "Return-Path": "<libcamera-devel-bounces@lists.libcamera.org>", "X-Original-To": "parsemail@patchwork.libcamera.org", "Delivered-To": "parsemail@patchwork.libcamera.org", "Received": [ "from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id 6478AC32FA\n\tfor <parsemail@patchwork.libcamera.org>;\n\tMon, 23 Mar 2026 10:27:38 +0000 (UTC)", "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 4BAB462771;\n\tMon, 23 Mar 2026 11:27:35 +0100 (CET)", "from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[213.167.242.64])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 3389762771\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tMon, 23 Mar 2026 11:27:29 +0100 (CET)", "from pb-laptop.local (185.221.143.129.nat.pool.zt.hu\n\t[185.221.143.129])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id D36A7591\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tMon, 23 Mar 2026 11:26:12 +0100 (CET)" ], "Authentication-Results": "lancelot.ideasonboard.com; dkim=pass (1024-bit key;\n\tunprotected) header.d=ideasonboard.com header.i=@ideasonboard.com\n\theader.b=\"OQjVS17+\"; dkim-atps=neutral", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1774261572;\n\tbh=PQ6GVCpIIkh4F1O2Lch5iO4mgvIHjVwf5jkItDhKTko=;\n\th=From:To:Subject:Date:In-Reply-To:References:From;\n\tb=OQjVS17+ke2ZDauUh4VFS4deqVi9JmgnZ7DD7I/Tjur2Oi+j7ZqxGzsKtH73aD2qG\n\ty6veDCy07HWXWVyjKC6wYX/YRHprV9yKdrHFCqX/y4RkWpxwPcjEdBdhMc3vYbaH8E\n\tzNAU7i+0+Pd948DjnzaoIBS7H7PimNjiBEVIvYHA=", "From": "=?utf-8?q?Barnab=C3=A1s_P=C5=91cze?= <barnabas.pocze@ideasonboard.com>", "To": "libcamera-devel@lists.libcamera.org", "Subject": "[RFC PATCH v2 7/7] libcamera: base: span: Deprecate it", "Date": "Mon, 23 Mar 2026 11:27:24 +0100", "Message-ID": "<20260323102724.1385487-8-barnabas.pocze@ideasonboard.com>", "X-Mailer": "git-send-email 2.53.0", "In-Reply-To": "<20260323102724.1385487-1-barnabas.pocze@ideasonboard.com>", "References": "<20260323102724.1385487-1-barnabas.pocze@ideasonboard.com>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=UTF-8", "Content-Transfer-Encoding": "8bit", "X-BeenThere": "libcamera-devel@lists.libcamera.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "<libcamera-devel.lists.libcamera.org>", "List-Unsubscribe": "<https://lists.libcamera.org/options/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=unsubscribe>", "List-Archive": "<https://lists.libcamera.org/pipermail/libcamera-devel/>", "List-Post": "<mailto:libcamera-devel@lists.libcamera.org>", "List-Help": "<mailto:libcamera-devel-request@lists.libcamera.org?subject=help>", "List-Subscribe": "<https://lists.libcamera.org/listinfo/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=subscribe>", "Errors-To": "libcamera-devel-bounces@lists.libcamera.org", "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>" }, "content": "With the switch to C++20, this type has largely become unnecessary,\nbut since users might still depend on it, do not remove it yet, only\ndeprecate it. The tests are also kept for now.\n\nSigned-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>\n---\n include/libcamera/base/span.h | 4 ++--\n test/span.cpp | 1 +\n 2 files changed, 3 insertions(+), 2 deletions(-)", "diff": "diff --git a/include/libcamera/base/span.h b/include/libcamera/base/span.h\nindex 5c7a98d8e..c8da7cfd1 100644\n--- a/include/libcamera/base/span.h\n+++ b/include/libcamera/base/span.h\n@@ -86,7 +86,7 @@ struct tuple_size<Span<T, dynamic_extent>>;\n } /* namespace utils */\n \n template<typename T, std::size_t Extent>\n-class Span\n+class [[deprecated(\"Use `std::span` instead\")]] Span\n {\n public:\n \tusing element_type = T;\n@@ -256,7 +256,7 @@ private:\n };\n \n template<typename T>\n-class Span<T, dynamic_extent>\n+class [[deprecated(\"Use `std::span` instead\")]] Span<T, dynamic_extent>\n {\n public:\n \tusing element_type = T;\ndiff --git a/test/span.cpp b/test/span.cpp\nindex 4b9f3279a..56b29512f 100644\n--- a/test/span.cpp\n+++ b/test/span.cpp\n@@ -9,6 +9,7 @@\n * Include first to ensure the header is self-contained, as there's no span.cpp\n * in libcamera.\n */\n+#pragma GCC diagnostic ignored \"-Wdeprecated-declarations\"\n #include <libcamera/base/span.h>\n \n #include <array>\n", "prefixes": [ "RFC", "v2", "7/7" ] }