1 /* Convert wide character to unibyte character. 2 Copyright (C) 2008, 2010-2021 Free Software Foundation, Inc. 3 Written by Bruno Haible <bruno@clisp.org>, 2008. 4 5 This file is free software: you can redistribute it and/or modify 6 it under the terms of the GNU Lesser General Public License as 7 published by the Free Software Foundation; either version 3 of the 8 License, or (at your option) any later version. 9 10 This file 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 13 GNU 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 <config.h> 19 20 /* Specification. */ 21 #include <wchar.h> 22 23 #include <stdio.h> 24 #include <stdlib.h> 25 26 int 27 wctob (wint_t wc) /* */ 28 { 29 char buf[64]; 30 31 if (!(MB_CUR_MAX <= sizeof (buf))) 32 abort (); 33 /* Handle the case where WEOF is a value that does not fit in a wchar_t. */ 34 if (wc == (wchar_t)wc) 35 if (wctomb (buf, (wchar_t)wc) == 1) 36 return (unsigned char) buf[0]; 37 return EOF; 38 }