{"id":25633,"url":"https://patchwork.libcamera.org/api/patches/25633/?format=json","web_url":"https://patchwork.libcamera.org/patch/25633/","project":{"id":1,"url":"https://patchwork.libcamera.org/api/projects/1/?format=json","name":"libcamera","link_name":"libcamera","list_id":"libcamera_core","list_email":"libcamera-devel@lists.libcamera.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20260106165754.1759831-4-barnabas.pocze@ideasonboard.com>","date":"2026-01-06T16:57:35","name":"[v4,03/22] libcamera: base: Add file for C++20 polyfills","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"3fb042d72746a838fcbd5d24f70445dbabf24179","submitter":{"id":216,"url":"https://patchwork.libcamera.org/api/people/216/?format=json","name":"Barnabás Pőcze","email":"barnabas.pocze@ideasonboard.com"},"delegate":null,"mbox":"https://patchwork.libcamera.org/patch/25633/mbox/","series":[{"id":5688,"url":"https://patchwork.libcamera.org/api/series/5688/?format=json","web_url":"https://patchwork.libcamera.org/project/libcamera/list/?series=5688","date":"2026-01-06T16:57:32","name":"libcamera: Add `MetadataList`","version":4,"mbox":"https://patchwork.libcamera.org/series/5688/mbox/"}],"comments":"https://patchwork.libcamera.org/api/patches/25633/comments/","check":"pending","checks":"https://patchwork.libcamera.org/api/patches/25633/checks/","tags":{},"headers":{"Return-Path":"","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 98D56BDCBF\n\tfor ;\n\tTue, 6 Jan 2026 16:58:10 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id DD63B61FBC;\n\tTue, 6 Jan 2026 17:58:02 +0100 (CET)","from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id A4B9F61FBB\n\tfor ;\n\tTue, 6 Jan 2026 17:57:58 +0100 (CET)","from pb-laptop.local (185.221.143.114.nat.pool.zt.hu\n\t[185.221.143.114])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id A1810581;\n\tTue, 6 Jan 2026 17:57:37 +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=\"kgqg4ARy\"; dkim-atps=neutral","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1767718657;\n\tbh=HpL9nwKiEV/kFGATM9qZ6WShd3CqncqXLsxA9TlcVKc=;\n\th=From:To:Cc:Subject:Date:In-Reply-To:References:From;\n\tb=kgqg4ARygsdzxvcIvgl6H2WKbAXnD7scx1u8zAVdakQWT4okjoJ5l8qSFhViC035a\n\tBmpy8m7Rm8vGMps2YgvH14iCTZ5ftDtNaQQWg7/aBASBqFzIKV//8E5Ef1ulCziENZ\n\tnoGuIZ01CvwV8MPmGAWe9wrNs7BcsbUJpHpnhoiE=","From":"=?utf-8?q?Barnab=C3=A1s_P=C5=91cze?= ","To":"libcamera-devel@lists.libcamera.org","Cc":"Kieran Bingham ","Subject":"[PATCH v4 03/22] libcamera: base: Add file for C++20 polyfills","Date":"Tue, 6 Jan 2026 17:57:35 +0100","Message-ID":"<20260106165754.1759831-4-barnabas.pocze@ideasonboard.com>","X-Mailer":"git-send-email 2.52.0","In-Reply-To":"<20260106165754.1759831-1-barnabas.pocze@ideasonboard.com>","References":"<20260106165754.1759831-1-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":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "},"content":"Add `cxx20.h` that will contain (possibly limited) C++17 implementations\nof some C++20 standard library features.\n\nSigned-off-by: Barnabás Pőcze \nAcked-by: Kieran Bingham \n---\n include/libcamera/base/internal/cxx20.h | 18 ++++++++++++++++++\n include/libcamera/base/meson.build | 7 +++++++\n 2 files changed, 25 insertions(+)\n create mode 100644 include/libcamera/base/internal/cxx20.h","diff":"diff --git a/include/libcamera/base/internal/cxx20.h b/include/libcamera/base/internal/cxx20.h\nnew file mode 100644\nindex 000000000..70a43f83c\n--- /dev/null\n+++ b/include/libcamera/base/internal/cxx20.h\n@@ -0,0 +1,18 @@\n+/* SPDX-License-Identifier: LGPL-2.1-or-later */\n+/*\n+ * Copyright (C) 2025, Ideas on Board Oy\n+ *\n+ * C++20 polyfills\n+ */\n+\n+#pragma once\n+\n+/**\n+ * \\internal\n+ * \\file cxx20.h\n+ * \\brief C++17 implementations of certain C++20 types and functions\n+ */\n+\n+namespace libcamera::internal::cxx20 {\n+\n+} /* namespace libcamera::internal::cxx20 */\ndiff --git a/include/libcamera/base/meson.build b/include/libcamera/base/meson.build\nindex f84b51419..bb4ed556b 100644\n--- a/include/libcamera/base/meson.build\n+++ b/include/libcamera/base/meson.build\n@@ -32,10 +32,17 @@ libcamera_base_private_headers = files([\n 'utils.h',\n ])\n \n+libcamera_base_internal_headers = files([\n+ 'internal/cxx20.h',\n+])\n+\n libcamera_base_headers = [\n libcamera_base_public_headers,\n libcamera_base_private_headers,\n+ libcamera_base_internal_headers,\n ]\n \n install_headers(libcamera_base_public_headers,\n subdir : libcamera_base_include_dir)\n+install_headers(libcamera_base_internal_headers,\n+ subdir : libcamera_base_include_dir / 'internal')\n","prefixes":["v4","03/22"]}