| 1 | // Use the macro ARRAY_SIZE when possible |
| 2 | // |
| 3 | // Confidence: High |
| 4 | // Copyright: (C) Gilles Muller, Julia Lawall, EMN, INRIA, DIKU. GPLv2. |
| 5 | // URL: http://coccinelle.lip6.fr/rules/array.html |
| 6 | // Options: -I ... -all_includes can give more complete results |
| 7 | virtual org |
| 8 | virtual patch |
| 9 | |
| 10 | @i@ |
| 11 | @@ |
| 12 | |
| 13 | #include <linux/kernel.h> |
| 14 | |
| 15 | ///////////////////////////////////// |
| 16 | ///////////////////////////////////// |
| 17 | @depends on i && patch && !org@ |
| 18 | type T; |
| 19 | T[] E; |
| 20 | @@ |
| 21 | |
| 22 | - (sizeof(E)/sizeof(*E)) |
| 23 | + ARRAY_SIZE(E) |
| 24 | |
| 25 | @depends on i && patch && !org@ |
| 26 | type T; |
| 27 | T[] E; |
| 28 | @@ |
| 29 | |
| 30 | - (sizeof(E)/sizeof(E[...])) |
| 31 | + ARRAY_SIZE(E) |
| 32 | |
| 33 | @depends on i && patch && !org@ |
| 34 | type T; |
| 35 | T[] E; |
| 36 | @@ |
| 37 | |
| 38 | - (sizeof(E)/sizeof(T)) |
| 39 | + ARRAY_SIZE(E) |
| 40 | |
| 41 | @n_patch depends on patch && !org@ |
| 42 | identifier AS,E; |
| 43 | @@ |
| 44 | |
| 45 | - #define AS(E) ARRAY_SIZE(E) |
| 46 | |
| 47 | @ depends on patch && !org@ |
| 48 | expression E; |
| 49 | identifier n_patch.AS; |
| 50 | @@ |
| 51 | |
| 52 | - AS(E) |
| 53 | + ARRAY_SIZE(E) |
| 54 | |
| 55 | |
| 56 | ///////////////////////////////////// |
| 57 | ///////////////////////////////////// |
| 58 | @arr_ptr depends on i && !patch && org@ |
| 59 | type T; |
| 60 | T[] E; |
| 61 | position p; |
| 62 | @@ |
| 63 | |
| 64 | (sizeof(E@p)/sizeof(*E)) |
| 65 | |
| 66 | @arr_tab depends on i && !patch && org@ |
| 67 | type T; |
| 68 | T[] E; |
| 69 | position p; |
| 70 | @@ |
| 71 | |
| 72 | (sizeof(E@p)/sizeof(E[...])) |
| 73 | |
| 74 | @arr_typ depends on i && !patch && org@ |
| 75 | type T; |
| 76 | T[] E; |
| 77 | position p; |
| 78 | @@ |
| 79 | |
| 80 | (sizeof(E@p)/sizeof(T)) |
| 81 | |
| 82 | @n_org depends on !patch && org@ |
| 83 | identifier AS,E; |
| 84 | @@ |
| 85 | |
| 86 | #define AS(E) ARRAY_SIZE(E) |
| 87 | |
| 88 | @arr_def depends on !patch && org@ |
| 89 | expression E; |
| 90 | identifier n_org.AS; |
| 91 | position p; |
| 92 | @@ |
| 93 | |
| 94 | AS@p(E) |
| 95 | |
| 96 | @script:python@ |
| 97 | p << arr_ptr.p; |
| 98 | e << arr_ptr.E; |
| 99 | @@ |
| 100 | cocci.print_main(e,p) |
| 101 | |
| 102 | @script:python@ |
| 103 | p << arr_tab.p; |
| 104 | e << arr_tab.E; |
| 105 | @@ |
| 106 | cocci.print_main(e,p) |
| 107 | |
| 108 | @script:python@ |
| 109 | p << arr_typ.p; |
| 110 | e << arr_typ.E; |
| 111 | @@ |
| 112 | cocci.print_main(e,p) |
| 113 | |
| 114 | @script:python@ |
| 115 | p << arr_def.p; |
| 116 | e << arr_def.E; |
| 117 | @@ |
| 118 | cocci.print_main(e,p) |