1 /* Formatted output to strings. 2 Copyright (C) 1999, 2002, 2006-2021 Free Software Foundation, Inc. 3 4 This file is free software. 5 It is dual-licensed under "the GNU LGPLv3+ or the GNU GPLv2+". 6 You can redistribute it and/or modify it under either 7 - the terms of the GNU Lesser General Public License as published 8 by the Free Software Foundation; either version 3, or (at your 9 option) any later version, or 10 - the terms of the GNU General Public License as published by the 11 Free Software Foundation; either version 2, or (at your option) 12 any later version, or 13 - the same dual license "the GNU LGPLv3+ or the GNU GPLv2+". 14 15 This file is distributed in the hope that it will be useful, 16 but WITHOUT ANY WARRANTY; without even the implied warranty of 17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 18 Lesser General Public License and the GNU General Public License 19 for more details. 20 21 You should have received a copy of the GNU Lesser General Public 22 License and of the GNU General Public License along with this 23 program. If not, see <https://www.gnu.org/licenses/>. */ 24 25 int 26 VASPRINTF (DCHAR_T **resultp, const FCHAR_T *format, va_list args) /* */ 27 { 28 size_t length; 29 DCHAR_T *result = VASNPRINTF (NULL, &length, format, args); 30 if (result == NULL) 31 return -1; 32 33 if (length > INT_MAX) 34 { 35 free (result); 36 errno = EOVERFLOW; 37 return -1; 38 } 39 40 *resultp = result; 41 /* Return the number of resulting units, excluding the trailing NUL. */ 42 return length; 43 }