Mercurial > octave-nkf
view liboctave/util/byte-swap.h @ 20651:e54ecb33727e
lo-array-gripes.cc: Remove FIXME's related to buffer size.
* lo-array-gripes.cc: Remove FIXME's related to buffer size. Shorten sprintf
buffers from 100 to 64 characters (still well more than 19 required).
Use 'const' decorator on constant value for clarity. Remove extra space
between variable and array bracket.
author | Rik <rik@octave.org> |
---|---|
date | Mon, 12 Oct 2015 21:13:47 -0700 |
parents | 4197fc428c7d |
children |
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/* Copyright (C) 1996-2015 John W. Eaton This file is part of Octave. Octave is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. Octave 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 General Public License for more details. You should have received a copy of the GNU General Public License along with Octave; see the file COPYING. If not, see <http://www.gnu.org/licenses/>. */ #if !defined (octave_byte_swap_h) #define octave_byte_swap_h 1 static inline void swap_bytes (void *ptr, unsigned int i, unsigned int j) { char *t = static_cast<char *> (ptr); char tmp = t[i]; t[i] = t[j]; t[j] = tmp; } template <int n> void swap_bytes (void *ptr) { for (int i = 0; i < n/2; i++) swap_bytes (ptr, i, n-1-i); } template <> inline void swap_bytes<1> (void *) { } template <> inline void swap_bytes<2> (void *ptr) { swap_bytes (ptr, 0, 1); } template <> inline void swap_bytes<4> (void *ptr) { swap_bytes (ptr, 0, 3); swap_bytes (ptr, 1, 2); } template <> inline void swap_bytes<8> (void *ptr) { swap_bytes (ptr, 0, 7); swap_bytes (ptr, 1, 6); swap_bytes (ptr, 2, 5); swap_bytes (ptr, 3, 4); } template <int n> void swap_bytes (void *ptr, int len) { char *t = static_cast<char *> (ptr); for (int i = 0; i < len; i++) { swap_bytes<n> (t); t += n; } } template <> inline void swap_bytes<1> (void *, int) { } #endif