annotate array.h @ 92:4d723e81b685

Same thing for parray
author David Demelier <markand@malikania.fr>
date Tue, 03 Jan 2012 17:54:35 +0100
parents b3ba5f5df3b9
children 9ebea85c7765
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1 /*
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2 * array.h -- manipulate dynamic arrays
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3 *
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4 * Copyright (c) 2011, 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 _ARRAY_H_
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20 #define _ARRAY_H_
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21
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22 #ifdef __cplusplus
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23 extern "C" {
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24 #endif
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25
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26 #include <stdarg.h>
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27
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28 #ifndef ARRAY_DEFAULT_BSIZE
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29 #define ARRAY_DEFAULT_BSIZE 128
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30 #endif
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31
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32 enum array_type {
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33 ARRAY_AUTO = 0,
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34 ARRAY_FIXED = 1
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35 };
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36
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37 struct array {
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38 enum array_type type; /* array's type (default FIXED) */
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39 void *data; /* array of data */
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40 int length; /* number of element inside */
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41 size_t size; /* current buffer size (allocated memory) */
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42 size_t unit; /* unit size (sizeof the object) */
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43 int bsize; /* block size (used when growing array) */
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44 int i; /* only for ARRAY_FOREACH */
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45
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46 /* Own allocation functions */
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47 void * (*malloc)(size_t);
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48 void * (*realloc)(void *, size_t);
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49 };
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50
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51 typedef void (*array_map_fn)(void *, void *);
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52 typedef int (*array_cmp_fn)(void *, void *);
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53
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54 int array_new(struct array *, size_t);
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55 void array_set(struct array *, const char *, ...);
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56 int array_push(struct array *, const void *);
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57 int array_insert(struct array *, const void *, int);
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58 int array_append(struct array *, const void *);
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59 void array_pop(struct array *);
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60 void array_unqueue(struct array *);
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61 void array_remove(struct array *, int);
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62 void array_unref(struct array *, const void *);
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63 int array_iswap(struct array *, int, int);
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64 int array_pswap(struct array *, const void *, const void *);
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65 void array_map(const struct array *, array_map_fn, void *);
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66 int array_find(const struct array *, array_cmp_fn, void *, void *);
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67 void array_clear(struct array *);
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68 void array_free(struct array *);
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69
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70 #define ARRAY_HEAD(a, type) \
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71 (((type *)a->data)[0])
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72 #define ARRAY_TAIL(a, type) \
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73 (((type *)a->data)[(a->length == 0) ? 0 : a->length - 1])
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74 #define ARRAY_INDEX(a, i, type) \
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75 ((type *)(a)->data)[((i) < 0) \
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76 ? 0 : ((i) >= (a)->length) ? (a)->length - 1 : (i)]
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77
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78 #define ARRAY_FOREACH(a, var, type) \
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79 for ((a)->i = 0, var = ARRAY_HEAD((a), type); \
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80 (a)->i < (a)->length; \
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81 ++(a)->i, var = ARRAY_INDEX((a), (a)->i, type))
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82
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83 /* Only for ARRAY_FIXED */
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84 #define ARRAY_FULL(a) \
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85 ((a)->length == (a)->bsize)
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86
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87 #ifdef __cplusplus
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88 }
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89 #endif
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90
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91 #endif /* _ARRAY_H_ */