1 /* Fill UTF-8 string. 2 Copyright (C) 2002, 2006, 2009-2021 Free Software Foundation, Inc. 3 Written by Bruno Haible <bruno@clisp.org>, 2002. 4 5 This file is free software. 6 It is dual-licensed under "the GNU LGPLv3+ or the GNU GPLv2+". 7 You can redistribute it and/or modify it under either 8 - the terms of the GNU Lesser General Public License as published 9 by the Free Software Foundation; either version 3, or (at your 10 option) any later version, or 11 - the terms of the GNU General Public License as published by the 12 Free Software Foundation; either version 2, or (at your option) 13 any later version, or 14 - the same dual license "the GNU LGPLv3+ or the GNU GPLv2+". 15 16 This file is distributed in the hope that it will be useful, 17 but WITHOUT ANY WARRANTY; without even the implied warranty of 18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 19 Lesser General Public License and the GNU General Public License 20 for more details. 21 22 You should have received a copy of the GNU Lesser General Public 23 License and of the GNU General Public License along with this 24 program. If not, see <https://www.gnu.org/licenses/>. */ 25 26 #include <config.h> 27 28 /* Specification. */ 29 #include "unistr.h" 30 31 #define FUNC u8_set 32 #define UNIT uint8_t 33 #define IS_SINGLE_UNIT(uc) (uc < 0x80) 34 35 #include <errno.h> 36 #include <string.h> 37 38 UNIT * 39 FUNC (UNIT *s, ucs4_t uc, size_t n) /* */ 40 { 41 if (n > 0) 42 { 43 if (IS_SINGLE_UNIT (uc)) 44 memset ((char *) s, uc, n); 45 else 46 { 47 errno = EILSEQ; 48 return NULL; 49 } 50 } 51 return s; 52 }