| 1 | #include <malloc.h> |
| 2 | #include <math.h> |
| 3 | #include <stdio.h> |
| 4 | |
| 5 | #include "alloc.h" |
| 6 | #include "debug.h" |
| 7 | #include "format.h" |
| 8 | #include "tabular.h" |
| 9 | |
| 10 | #include "storage.h" |
| 11 | |
| 12 | /* global variables */ |
| 13 | |
| 14 | #define DEFAULT_STORAGE_SIZE 10 |
| 15 | tab_t *storage = NULL; |
| 16 | |
| 17 | /* storage functions */ |
| 18 | |
| 19 | int memory (int nb) |
| 20 | { |
| 21 | if ((nb != -1) && (nb != size_tab (storage))) { |
| 22 | storage = resize_tab (storage, nb); |
| 23 | } |
| 24 | if (nb == -1) { |
| 25 | memory (DEFAULT_STORAGE_SIZE); |
| 26 | } |
| 27 | return size_tab (storage); |
| 28 | } |
| 29 | |
| 30 | double store (int id, double value) |
| 31 | { |
| 32 | if (storage == NULL) { |
| 33 | memory (DEFAULT_STORAGE_SIZE); |
| 34 | } |
| 35 | return set_tab (storage, id, value); |
| 36 | } |
| 37 | |
| 38 | double recall (int id) |
| 39 | { |
| 40 | if (storage == NULL) { |
| 41 | memory (DEFAULT_STORAGE_SIZE); |
| 42 | } |
| 43 | return get_tab (storage, id); |
| 44 | } |
| 45 | |
| 46 | double increase (int id) |
| 47 | { |
| 48 | if (storage == NULL) { |
| 49 | memory (DEFAULT_STORAGE_SIZE); |
| 50 | } |
| 51 | double val = get_tab (storage, id); |
| 52 | if (!isnan (val)) { |
| 53 | set_tab (storage, id, ++val); |
| 54 | } |
| 55 | return val; |
| 56 | } |
| 57 | |
| 58 | double decrease (int id) |
| 59 | { |
| 60 | if (storage == NULL) { |
| 61 | memory (DEFAULT_STORAGE_SIZE); |
| 62 | } |
| 63 | double val = get_tab (storage, id); |
| 64 | if (!isnan (val)) { |
| 65 | set_tab (storage, id, --val); |
| 66 | } |
| 67 | return val; |
| 68 | } |
| 69 | |
| 70 | void display (void) |
| 71 | { |
| 72 | if (storage == NULL) { |
| 73 | memory (DEFAULT_STORAGE_SIZE); |
| 74 | } |
| 75 | int i, n = size_tab (storage); |
| 76 | printf ("storage:"); |
| 77 | for (i = 0; i < n; i++) { |
| 78 | printf (" "); |
| 79 | printl (get_tab (storage, i + 1)); |
| 80 | } |
| 81 | printf ("\n"); |
| 82 | } |
| 83 | |
| 84 | void clear () |
| 85 | { |
| 86 | if (storage == NULL) { |
| 87 | memory (DEFAULT_STORAGE_SIZE); |
| 88 | } |
| 89 | int i, n = size_tab (storage); |
| 90 | for (i = 0; i < n; i++) { |
| 91 | set_tab (storage, i, 0); |
| 92 | } |
| 93 | } |
| 94 | |
| 95 | /* vim: set ts=4 sw=4 et: */ |