34 lines
1.1 KiB
C
34 lines
1.1 KiB
C
/* Copyright (C) 1992-2018 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <unistd.h>
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void
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swab (const void *bfrom, void *bto, ssize_t n)
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{
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const char *from = (const char *) bfrom;
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char *to = (char *) bto;
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n &= ~((ssize_t) 1);
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while (n > 1)
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{
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const char b0 = from[--n], b1 = from[--n];
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to[n] = b0;
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to[n + 1] = b1;
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}
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}
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