/* Copyright (C) 1992-2023 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ #include <unistd.h> void swab (const void *bfrom, void *bto, ssize_t n) { const char *from = (const char *) bfrom; char *to = (char *) bto; n &= ~((ssize_t) 1); while (n > 1) { const char b0 = from[--n], b1 = from[--n]; to[n] = b0; to[n + 1] = b1; } }