1*6348e3f3Sblymn /* $NetBSD: clear.c,v 1.14 2024/12/23 02:58:03 blymn Exp $ */ 2716747aaSmikel 361f28255Scgd /* 4d29088daScgd * Copyright (c) 1981, 1993, 1994 5019bbd13Scgd * The Regents of the University of California. All rights reserved. 661f28255Scgd * 761f28255Scgd * Redistribution and use in source and binary forms, with or without 861f28255Scgd * modification, are permitted provided that the following conditions 961f28255Scgd * are met: 1061f28255Scgd * 1. Redistributions of source code must retain the above copyright 1161f28255Scgd * notice, this list of conditions and the following disclaimer. 1261f28255Scgd * 2. Redistributions in binary form must reproduce the above copyright 1361f28255Scgd * notice, this list of conditions and the following disclaimer in the 1461f28255Scgd * documentation and/or other materials provided with the distribution. 15eb7c1594Sagc * 3. Neither the name of the University nor the names of its contributors 1661f28255Scgd * may be used to endorse or promote products derived from this software 1761f28255Scgd * without specific prior written permission. 1861f28255Scgd * 1961f28255Scgd * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 2061f28255Scgd * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2161f28255Scgd * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2261f28255Scgd * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 2361f28255Scgd * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2461f28255Scgd * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2561f28255Scgd * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2661f28255Scgd * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2761f28255Scgd * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2861f28255Scgd * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2961f28255Scgd * SUCH DAMAGE. 3061f28255Scgd */ 3161f28255Scgd 32716747aaSmikel #include <sys/cdefs.h> 3361f28255Scgd #ifndef lint 34716747aaSmikel #if 0 35d29088daScgd static char sccsid[] = "@(#)clear.c 8.2 (Berkeley) 5/4/94"; 36716747aaSmikel #else 37*6348e3f3Sblymn __RCSID("$NetBSD: clear.c,v 1.14 2024/12/23 02:58:03 blymn Exp $"); 38716747aaSmikel #endif 3961f28255Scgd #endif /* not lint */ 4061f28255Scgd 41d29088daScgd #include "curses.h" 4223464ee5Sblymn #include "curses_private.h" 4361f28255Scgd 44aaf74682Sblymn #ifndef _CURSES_USE_MACROS 45aaf74682Sblymn 46aaf74682Sblymn /* 47aaf74682Sblymn * clear -- 48aaf74682Sblymn * Clear stdscr 49aaf74682Sblymn */ 50aaf74682Sblymn int 51aaf74682Sblymn clear(void) 52aaf74682Sblymn { 53c84d91aaSblymn return wclear(_cursesi_screen->stdscr); 54aaf74682Sblymn } 55aaf74682Sblymn 56aaf74682Sblymn #endif 57aaf74682Sblymn 5861f28255Scgd /* 5962a3457dSmycroft * wclear -- 6062a3457dSmycroft * Clear the window. 6161f28255Scgd */ 6262a3457dSmycroft int 63aaf74682Sblymn wclear(WINDOW *win) 6462a3457dSmycroft { 65*6348e3f3Sblymn if (__predict_false(win == NULL)) 66*6348e3f3Sblymn return ERR; 67*6348e3f3Sblymn 6862a3457dSmycroft if (werase(win) == OK) { 69019bbd13Scgd win->flags |= __CLEAROK; 7062a3457dSmycroft return (OK); 7162a3457dSmycroft } 7262a3457dSmycroft return (ERR); 7361f28255Scgd } 74