release-1.10release-1.8release-1.9
Last change
on this file since e6d7e4e was
d427f08,
checked in by Nelson Elhage <nelhage@mit.edu>, 13 years ago
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Use G_GNUC_WARN_UNUSED_RESULT
Have gcc warn us when we ignore the result of a function that requires
the caller to free the result, or an initilization function that can
fail. This might help (slightly) with preventing leaks and segfaults.
Additionally changed some functions that should never fail to not
return values. (The owl_list_* functions changed only fail if
list->size < 0, which we assume is not the case elsewhere.)
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-
Property mode set to
100644
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File size:
1.4 KB
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Line | |
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1 | #include "owl.h" |
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2 | #include <stdlib.h> |
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3 | |
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4 | #define INITSIZE 10 |
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5 | #define GROWBY 3 / 2 |
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6 | |
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7 | void owl_list_create(owl_list *l) |
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8 | { |
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9 | l->size=0; |
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10 | l->list=g_new(void *, INITSIZE); |
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11 | l->avail=INITSIZE; |
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12 | } |
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13 | |
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14 | int owl_list_get_size(const owl_list *l) |
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15 | { |
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16 | return(l->size); |
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17 | } |
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18 | |
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19 | |
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20 | static void owl_list_grow(owl_list *l, int n) |
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21 | { |
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22 | void *ptr; |
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23 | |
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24 | if ((l->size+n) > l->avail) { |
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25 | int avail = MAX(l->avail * GROWBY, l->size + n); |
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26 | ptr = g_renew(void *, l->list, avail); |
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27 | if (ptr==NULL) abort(); |
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28 | l->list=ptr; |
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29 | l->avail = avail; |
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30 | } |
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31 | |
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32 | } |
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33 | |
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34 | void *owl_list_get_element(const owl_list *l, int n) |
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35 | { |
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36 | if (n>l->size-1) return(NULL); |
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37 | return(l->list[n]); |
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38 | } |
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39 | |
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40 | int owl_list_insert_element(owl_list *l, int at, void *element) |
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41 | { |
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42 | int i; |
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43 | if(at < 0 || at > l->size) return -1; |
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44 | owl_list_grow(l, 1); |
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45 | |
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46 | for (i=l->size; i>at; i--) { |
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47 | l->list[i]=l->list[i-1]; |
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48 | } |
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49 | |
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50 | l->list[at] = element; |
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51 | l->size++; |
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52 | return(0); |
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53 | } |
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54 | |
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55 | void owl_list_append_element(owl_list *l, void *element) |
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56 | { |
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57 | owl_list_insert_element(l, l->size, element); |
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58 | } |
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59 | |
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60 | void owl_list_prepend_element(owl_list *l, void *element) |
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61 | { |
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62 | owl_list_insert_element(l, 0, element); |
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63 | } |
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64 | |
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65 | int owl_list_remove_element(owl_list *l, int n) |
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66 | { |
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67 | int i; |
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68 | |
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69 | if (n>l->size-1) return(-1); |
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70 | for (i=n; i<l->size-1; i++) { |
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71 | l->list[i]=l->list[i+1]; |
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72 | } |
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73 | l->size--; |
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74 | return(0); |
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75 | } |
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76 | |
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77 | void owl_list_cleanup(owl_list *l, void (*elefree)(void *)) |
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78 | { |
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79 | int i; |
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80 | |
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81 | if (elefree) { |
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82 | for (i = 0; i < l->size; i++) { |
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83 | (elefree)(l->list[i]); |
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84 | } |
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85 | } |
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86 | g_free(l->list); |
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87 | } |
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