From patchwork Mon Jun 7 02:31:55 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tom Honermann X-Patchwork-Id: 1488375 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=gcc.gnu.org (client-ip=8.43.85.97; helo=sourceware.org; envelope-from=gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org; receiver=) Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=gcc.gnu.org header.i=@gcc.gnu.org header.a=rsa-sha256 header.s=default header.b=QkO74acU; dkim-atps=neutral Received: from sourceware.org (server2.sourceware.org [8.43.85.97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4Fyy8N3xsKz9sRN for ; Mon, 7 Jun 2021 12:32:50 +1000 (AEST) Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id A6CAE3850430 for ; Mon, 7 Jun 2021 02:32:47 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org A6CAE3850430 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1623033167; bh=hVJ0gX/XkFjRi+2iZ3euQiAyVFl5+98aObZp1+iJaZo=; h=Subject:To:Date:List-Id:List-Unsubscribe:List-Archive:List-Post: List-Help:List-Subscribe:From:Reply-To:From; b=QkO74acU0NzrfOjXWkQzuRcUCHtm9jg9kBwJwYWvdyazCrc8V1HbzcmoIMALEFFFo WoH9niPsRlll/TzwJ0ZuVZN+VVX8zsn5KWfdcJIl8y0mXN15QAuYw3OQMtPFasJK5Z F+LxWAdZNODD443u2N6jkCBr9jWHbk19zSP4feM8= X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from smtp108.ord1d.emailsrvr.com (smtp108.ord1d.emailsrvr.com [184.106.54.108]) by sourceware.org (Postfix) with ESMTPS id 1843F3857C73 for ; Mon, 7 Jun 2021 02:31:56 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 1843F3857C73 X-Auth-ID: tom@honermann.net Received: by smtp22.relay.ord1d.emailsrvr.com (Authenticated sender: tom-AT-honermann.net) with ESMTPSA id 72960E0096 for ; Sun, 6 Jun 2021 22:31:55 -0400 (EDT) Subject: [PATCH 0/3]: C N2653 char8_t implementation To: gcc-patches Message-ID: <770e6d4f-2dae-e2f9-c6c8-bb3d458ef796@honermann.net> Date: Sun, 6 Jun 2021 22:31:55 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 Content-Language: en-US X-Classification-ID: 6b208d34-67c3-4973-98d2-31b7a60bbd48-1-1 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, KAM_SHORT, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H4, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org 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-Patchwork-Original-From: Tom Honermann via Gcc-patches From: Tom Honermann Reply-To: Tom Honermann Errors-To: gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org Sender: "Gcc-patches" This series of patches implements the core language features for the WG14 N2653 [1] proposal to provide char8_t support in C. These changes are intended to align char8_t support in C with the support provided in C++20 via WG21 P0482R6 [2]. These changes do not impact default gcc behavior. The existing -fchar8_t option is extended to C compilation to enable the N2653 changes, and -fno-char8_t is extended to explicitly disable them. N2653 has not yet been accepted by WG14, so no changes are made to handling of the C2X language dialect. Patch 1: Language support Patch 2: New tests Patch 3: Documentation updates Tom. [1]: WG14 N2653 "char8_t: A type for UTF-8 characters and strings (Revision 1)" http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2653.htm [2]: WG21 P0482R6 "char8_t: A type for UTF-8 characters and strings (Revision 6)" https://wg21.link/p0482r6