lib/unistr/u-set.h

   1 /* Fill UTF-8/UTF-16/UTF-32 string.
   2    Copyright (C) 1999, 2002, 2006, 2009-2021 Free Software Foundation, Inc.
   3    Written by Bruno Haible <bruno@clisp.org>, 2002.
   4
   5    This program is free software: you can redistribute it and/or modify it
   6    under the terms of the GNU Lesser General Public License as published
   7    by the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public License
  16    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  17
  18 #include <errno.h>
  19
  20 UNIT *
  21 FUNC (UNIT *s, ucs4_t uc, size_t n)
  22 {
  23   if (n > 0)
  24     {
  25       if (IS_SINGLE_UNIT (uc))
  26         {
  27           UNIT *ptr = s;
  28
  29           for (; n > 0; n--)
  30             *ptr++ = uc;
  31         }
  32       else
  33         {
  34           errno = EILSEQ;
  35           return NULL;
  36         }
  37     }
  38   return s;
  39 }