| 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 | void memory (int nb) |
| 20 | { |
| 21 | if (nb != size_tab (storage)) { |
| 22 | storage = resize_tab (storage, nb); |
| 23 | } |
| 24 | } |
| 25 | |
| 26 | double store (int id, double value) |
| 27 | { |
| 28 | if (storage == NULL) { |
| 29 | memory (DEFAULT_STORAGE_SIZE); |
| 30 | } |
| 31 | return set_tab (storage, id, value); |
| 32 | } |
| 33 | |
| 34 | double recall (int id) |
| 35 | { |
| 36 | if (storage == NULL) { |
| 37 | memory (DEFAULT_STORAGE_SIZE); |
| 38 | } |
| 39 | return get_tab (storage, id); |
| 40 | } |
| 41 | |
| 42 | double increase (int id) |
| 43 | { |
| 44 | if (storage == NULL) { |
| 45 | memory (DEFAULT_STORAGE_SIZE); |
| 46 | } |
| 47 | double val = get_tab (storage, id); |
| 48 | if (!isnan (val)) { |
| 49 | set_tab (storage, id, ++val); |
| 50 | } |
| 51 | return val; |
| 52 | } |
| 53 | |
| 54 | double decrease (int id) |
| 55 | { |
| 56 | if (storage == NULL) { |
| 57 | memory (DEFAULT_STORAGE_SIZE); |
| 58 | } |
| 59 | double val = get_tab (storage, id); |
| 60 | if (!isnan (val)) { |
| 61 | set_tab (storage, id, --val); |
| 62 | } |
| 63 | return val; |
| 64 | } |
| 65 | |
| 66 | void display (void) |
| 67 | { |
| 68 | if (storage == NULL) { |
| 69 | memory (DEFAULT_STORAGE_SIZE); |
| 70 | } |
| 71 | int i, n = size_tab (storage); |
| 72 | fprintf (stdout, "storage:"); |
| 73 | for (i = 0; i < n; i++) { |
| 74 | fprintf (stdout, " "); |
| 75 | fprintf (stdout, minform, get_tab (storage, i + 1)); |
| 76 | } |
| 77 | fprintf (stdout, "\n"); |
| 78 | } |
| 79 | |
| 80 | void clear () |
| 81 | { |
| 82 | if (storage == NULL) { |
| 83 | memory (DEFAULT_STORAGE_SIZE); |
| 84 | } |
| 85 | int i, n = size_tab (storage); |
| 86 | for (i = 0; i < n; i++) { |
| 87 | set_tab (storage, i, 0); |
| 88 | } |
| 89 | } |
| 90 | |
| 91 | /* vim: set ts=4 sw=4 et: */ |