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annotate pack.h @ 174:9f22bd478f21

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Add operator less because widely used
author David Demelier <markand@malikania.fr>
date Thu, 12 Sep 2013 11:44:34 +0200
parents 1167cd06b475
children
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1 /*
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2 * pack.h -- endian dependant binary file reader
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3 *
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4 * Copyright (c) 2011, 2012, David Demelier <markand@malikania.fr>
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5 *
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6 * Permission to use, copy, modify, and/or distribute this software for any
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7 * purpose with or without fee is hereby granted, provided that the above
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8 * copyright notice and this permission notice appear in all copies.
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9 *
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10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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17 */
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18
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19 #ifndef _PACK_H_
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20 #define _PACK_H_
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21
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22 #include <stdarg.h>
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23 #include <stdint.h>
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24
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25 #define PACK_LE 1234
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26 #define PACK_BE 4321
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28 /*
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29 * Endian detection based on SDL_endian.h
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30 */
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32 #undef PACK_HOST_BYTEORDER
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33
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34 #if defined(__hppa__) || \
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35 defined(__m68k__) || defined(mc68000) || defined(_M_M68K) || \
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36 (defined(__MIPS__) && defined(__MISPEB__)) || \
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37 defined(__ppc__) || defined(__POWERPC__) || defined(_M_PPC) || \
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38 defined(__sparc__)
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39 # define PACK_HOST_BYTEORDER PACK_BE
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40 #else
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41 # define PACK_HOST_BYTEORDER PACK_LE
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42 #endif
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44 #define pack_swap16(x) \
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45 ((((x) >> 8) & 0x00FFL) | (((x) << 8) & 0xFF00L))
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47 #define pack_swap32(x) ((((x) >> 24) & 0x000000FFL) \
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48 | (((x) >> 8) & 0x0000FF00L) \
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49 | (((x) << 8) & 0x00FF0000L) \
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50 | (((x) << 24) & 0xFF000000L))
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52 #define pack_swap64(x) (((long) \
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53 ((int) pack_swap32((int) (((x) << 32) >> 32))) << 32) \
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54 | (int) pack_swap32((int) ((x) >> 32)))
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56 #ifdef __cplusplus
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57 extern "C" {
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58 #endif
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59
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60 long pack_write(short, const char *, const char *, ...);
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61 long pack_vwrite(short, const char *, const char *, va_list);
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62 long pack_fwrite(short, FILE *, const char *, ...);
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63 long pack_vfwrite(short, FILE *, const char *, va_list);
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64 long pack_swrite(short, char *, size_t, const char *, ...);
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65 long pack_vswrite(short, char *, size_t, const char *, va_list);
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66 long pack_aswrite(short, char **, const char *, ...);
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67 long pack_vaswrite(short, char **, const char *, va_list);
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69 long pack_read(short, const char *, const char *, ...);
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70 long pack_vread(short, const char *, const char *, va_list);
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71 long pack_fread(short, FILE *, const char *, ...);
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72 long pack_vfread(short, FILE *, const char *, va_list);
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73 long pack_sread(short, const char *, size_t, const char *, ...);
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74 long pack_vsread(short, const char *, size_t, const char *, va_list);
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76 #ifdef __cplusplus
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77 }
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78 #endif
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80 #endif /* _PACK_H_ */